Medical power supply and distribution system, medical power supply and distribution management method, and apparatus

Abstract

The present application relates to a medical power supply and distribution system, and a medical power supply and distribution management method. The power supply and distribution system comprises an energy storage system, an energy scheduling control system, and a plurality of medical scanning systems. The energy storage system is separately connected to the medical scanning systems, and the energy scheduling control system is separately connected to the energy storage system and the medical scanning systems. The energy storage system is used for acquiring and storing electric energy. The energy scheduling control system is used for controlling the energy storage system to supply power to a medical scanning system to be operated.

Description

Medical power supply and distribution system, and medical power supply and distribution management methods and devices

[0001] Related applications

[0002] This application claims priority to the following Chinese patent applications filed on July 29, 2024: application number 2024110271287 entitled "Power Supply Method and Apparatus for Medical Equipment"; application number 2024218101383 entitled "Power Distribution System and Medical Equipment for Medical Equipment"; and application number 2024111430204 entitled "Power Supply and Distribution System for Medical Building and Power Distribution Management Method for Power Supply and Distribution System"; the entire contents of these patent applications are incorporated herein by reference. Technical Field

[0003] This application relates to the field of electrical technology, and in particular to a medical power supply and distribution system, and a medical power supply and distribution management method and apparatus. Background Technology

[0004] With the development of medical scanning technology, the number of medical scanning devices deployed in medical buildings is gradually increasing. Therefore, how to achieve green and energy-saving power supply and distribution in medical buildings has become a core issue in optimizing the utilization of power resources.

[0005] Traditionally, each medical scanning device in a medical building is powered by a dedicated power line or network. However, this method is costly to build and has low resource utilization. Summary of the Invention

[0006] In a first aspect, this application provides a power supply and distribution system for a medical building, which includes: an energy storage system, an energy dispatch control system, and multiple medical scanning systems, wherein the energy storage system is connected to each of the medical scanning systems, and the energy dispatch control system is connected to both the energy storage system and each of the medical scanning systems.

[0007] Energy storage systems are used to acquire and store electrical energy;

[0008] An energy dispatch control system is used to control the energy storage system to supply power to the medical scanning system that is ready to be used.

[0009] Secondly, this application provides a power distribution management method for a power supply and distribution system, applied to the power supply and distribution system of the first aspect, the method comprising:

[0010] Obtain the working status of each medical scanning system and determine the medical scanning system to be used;

[0011] Control the energy storage system to supply power to the medical scanning system that is ready to be used.

[0012] Thirdly, this application provides a medical device power distribution system, which includes a main load circuit and an external power supply; the main load circuit includes a main load device and an energy storage system, one end of which is connected to the external power supply and the other end of which is connected to the main load device.

[0013] The main load equipment is powered by an energy storage system.

[0014] Fourthly, this application provides a medical device that includes a medical device power distribution system as described in the third aspect.

[0015] Fifthly, this application provides a power supply method for a medical device, applied to a medical device power distribution system, the medical device power distribution system including multiple different power source modules; the method includes:

[0016] Obtain the target operating power of the medical device when executing the target scanning protocol;

[0017] Based on the target operating power, a target power source module is determined from multiple different power source modules;

[0018] The medical equipment is powered by controlling the release of electrical energy stored in the target power source module.

[0019] Sixthly, this application provides a power supply device for a medical device, comprising:

[0020] The acquisition module is used to acquire the target operating power of the medical device when executing the target scanning protocol;

[0021] The determination module is used to determine the target power source module from multiple different power source modules based on the target operating power;

[0022] The power supply module is used to power medical devices by controlling the release of electrical energy stored in the target power source module.

[0023] In a seventh aspect, this application provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the methods described in the second or fifth aspect above.

[0024] Eighthly, this application provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the steps of the methods described in the second or fifth aspect above.

[0025] Details of one or more embodiments of this application are set forth in the following drawings and description. Other features, objects, and advantages of this application will become apparent from the specification, drawings, and claims. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 is a schematic diagram of the power supply and distribution system of a medical building provided in an embodiment of this application;

[0028] Figure 2 is a schematic diagram of the energy storage system in the power supply and distribution system provided in the embodiment of this application;

[0029] Figure 3 is another structural schematic diagram of the energy storage system in the power supply and distribution system provided in the embodiment of this application;

[0030] Figure 4 is another structural schematic diagram of the energy storage system in the power supply and distribution system provided in the embodiment of this application;

[0031] Figure 5 is another structural schematic diagram of the energy storage system in the power supply and distribution system provided in the embodiment of this application;

[0032] Figure 6 is another structural schematic diagram of the power supply and distribution system of the medical building provided in the embodiment of this application;

[0033] Figure 7 is another structural schematic diagram of the power supply and distribution system of the medical building provided in the embodiment of this application;

[0034] Figure 8 is another structural schematic diagram of the energy storage system in the power supply and distribution system provided in the embodiment of this application;

[0035] Figure 9 is a complete structural diagram of the power supply and distribution system of the medical building provided in the embodiment of this application;

[0036] Figure 10(a) is a schematic diagram of the internal structure of the energy density type energy storage subsystem;

[0037] Figure 10(b) is a schematic diagram of the internal structure of the power density energy storage subsystem;

[0038] Figure 11 is another complete structural schematic diagram of the power supply and distribution system of the medical building provided in the embodiment of this application;

[0039] Figure 12 is a flowchart illustrating the power distribution management method of the power supply and distribution system provided in an embodiment of this application;

[0040] Figure 13 is a schematic diagram of a medical device power distribution system in one embodiment;

[0041] Figure 14 is a schematic diagram of the power distribution system for medical devices in another embodiment;

[0042] Figure 15 is a schematic diagram of the power distribution system for medical devices in another embodiment;

[0043] Figure 16 is a schematic diagram of the power distribution system for medical devices in another embodiment;

[0044] Figure 17 is a schematic diagram of the first DC power source in one embodiment;

[0045] Figure 18 is a schematic diagram of the second DC power source in one embodiment;

[0046] Figure 19 is a schematic diagram of the power distribution system for medical devices in another embodiment;

[0047] Figure 20 is a schematic diagram of the connection relationship of various components in the power distribution system of a medical device in one embodiment;

[0048] Figure 21 is a flowchart illustrating a power supply method for a medical device in one embodiment;

[0049] Figure 22 is a schematic diagram of a medical device power distribution system in one embodiment;

[0050] Figure 23 is a schematic diagram of a power density power source module in one embodiment;

[0051] Figure 24 is a schematic diagram of an energy density power source module in one embodiment;

[0052] Figure 25 is a schematic diagram of the process of powering a medical device in one embodiment;

[0053] Figure 26 is a schematic diagram of the process for powering medical devices in another embodiment;

[0054] Figure 27 is a schematic diagram of the process for powering medical devices in another embodiment;

[0055] Figure 28 is a schematic diagram of the power, voltage, and current curves in one embodiment;

[0056] Figure 29 is a schematic diagram of the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve in one embodiment.

[0057] Figure 30 is a schematic diagram of the charging process for a power density power source module in one embodiment;

[0058] Figure 31 is a schematic diagram of the power supply device of a medical device in one embodiment;

[0059] Figure 32 is an internal structure diagram of a computer device in one embodiment. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0062] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0063] The medical power supply and distribution system provided in this application is suitable for medical buildings equipped with one or more medical scanning systems. In related technologies, the power supply and distribution methods for medical buildings typically employ dedicated power lines and networks to power each medical scanning system. However, traditional power supply and distribution methods are costly to construct and have low resource utilization.

[0064] Based on this, the embodiments of this application propose a novel green, energy-saving, low-cost, and highly optimized resource-utilizing integrated power supply and distribution system, which has the following advantages over traditional power supply and distribution methods in medical buildings:

[0065] 1. Significantly reduces the power distribution capacity requirements for medical facilities. The power distribution capacity requirements for a single unit and the total capacity can be greatly reduced, lowering the originally high site construction and operating costs. It can reduce the power distribution capacity requirement of hundreds of kVA for medical scanning equipment to tens of kVA.

[0066] 2. To help medical buildings transform from a form characterized by high energy consumption, low resource allocation efficiency, high carbon emissions, and high construction costs into a new sustainable development form characterized by green intelligence, high energy efficiency and low power consumption, high resource utilization, and low cost;

[0067] 3. Propose large-scale energy storage systems at the building or institute level, such as introducing battery energy storage technology, flywheel energy storage technology, superconducting magnetic energy storage technology, etc., to achieve optimal and efficient resource utilization and integration, significantly reduce costs, and save social resources;

[0068] 4. Propose building-level or hospital-level energy dispatch and control systems, such as energy consumption towers, to realize energy flow between multiple energy storage systems or medical scanning equipment, intelligent energy dispatch, significantly reduce the pressure on the national power grid, and achieve peak shaving and valley filling of energy.

[0069] 5. Propose a kinetic energy recovery and renewable energy collection system;

[0070] 6. Improve power quality.

[0071] The technical solution of this application and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0072] Figure 1 is a schematic diagram of the structure of the medical power supply and distribution system provided in the embodiment of this application. As shown in Figure 1, the power supply and distribution system includes: an energy storage system 111, an energy dispatch control system 112, and multiple medical scanning systems 113. The energy storage system 111 is connected to each of the medical scanning systems 113, and the energy dispatch control system 112 is connected to both the energy storage system 111 and each of the medical scanning systems 113.

[0073] Energy storage system 111 is used to acquire and store electrical energy; energy dispatch control system 112 is used to control the energy storage system 111 to supply power to the medical scanning system 113 that is ready to work.

[0074] For example, the energy storage system 111 can have the advantages of high energy storage and high power. On the one hand, it can acquire and store a lot of electrical energy to meet the power supply needs of multiple medical scanning systems in medical buildings at the same time. On the other hand, it can output a large amount of power to supply power to high-power, high-energy-consuming medical scanning systems.

[0075] In one embodiment, as shown in FIG13, each medical scanning system 113 includes a main load device 211 (i.e., the main loop load shown in FIG9). The main load device 211 and the energy storage system 212 constitute a main load loop 210, wherein one end of the energy storage system 212 is connected to the energy supply system, and the other end of the energy storage system 212 is connected to the main load device 211. The main load device 211 is powered by the energy storage system 212. Exemplarily, the energy supply system may refer to external grid power (i.e., external power source 220 shown in FIG13), for example, a three-phase grid distribution box at the user-side terminal distribution point in a power grid distribution system.

[0076] For example, the energy storage system 111 may include one or more energy storage units, which can be various types of batteries, to store the acquired electrical energy. Additionally, the energy storage system 111 may also include one or more power supply and distribution units to realize power conversion and transmission. For instance, the power supply and distribution unit can realize power conversion between the energy supply system and the energy storage unit, so as to transmit and store the electrical energy of the energy supply system in the energy storage unit. Of course, the power supply and distribution unit can also realize power conversion between the energy storage unit and the medical scanning system 113, so as to obtain electrical energy from the energy storage unit and provide high-power power to the medical scanning system. Furthermore, the power supply and distribution unit can also realize power conversion between the energy storage system itself and the energy storage units, that is, to realize energy recovery within the energy storage system itself.

[0077] For example, the energy dispatch control system 112, connected to each medical scanning system 113, can be used to monitor the power supply requirements of each medical scanning system 113, thereby identifying the medical scanning system 113 to be operated. For example, when a medical scanning system 113 is performing a medical scanning task, it can be considered that the medical scanning system requires high power supply, that is, the medical scanning system to be operated.

[0078] When the medical scanning system 113 is not performing a medical scanning task, such as in standby mode, it still requires power, although the power supply is much lower than when performing a medical scanning task. For example, the medical scanning system in standby mode can be powered directly by the energy supply system or by an energy storage system. Optionally, when the energy storage system supplies power to the medical scanning system in standby mode, the power distribution unit in the energy storage system can obtain power from the energy supply system, rather than from the energy storage unit itself, to power the medical scanning system in standby mode. This reduces the high-power output of the energy storage unit, thereby increasing its lifespan. For example, the energy supply system may include, but is not limited to, the power grid, an energy harvesting system, and the energy recovery system of the energy storage device itself; the energy harvesting system may include, but is not limited to, clean energy harvesting systems and renewable energy harvesting systems.

[0079] For example, when a medical scanning system 113 to be operated is identified, the energy dispatch control system 112 can control the energy storage system 111 to supply power to the medical scanning system 113 to be operated; alternatively, the energy dispatch control system 112 can send a power supply control command carrying an identifier of the medical scanning system 113 to be operated to the energy storage system 111 so that the energy storage system 111 can supply power to the medical scanning system 113 to be operated.

[0080] For example, when the energy storage system 111 supplies power to the medical scanning system 113 that is to be operated, it can connect the power supply between the energy storage system 111 and the medical scanning system 113 to be operated, thereby supplying power to the medical scanning system 113; conversely, for the medical scanning system 113 that is not to be operated, the energy storage system 111 can disconnect the power supply between the energy storage system 111 and the medical scanning system 113 that is not to be operated.

[0081] The power supply and distribution system for a medical building proposed in this embodiment includes an energy storage system, an energy dispatch control system, and multiple medical scanning systems. The energy storage system is connected to each medical scanning system, and the energy dispatch control system is connected to both the energy storage system and each medical scanning system. The energy storage system is used to obtain and store electrical energy from the power grid. The energy dispatch control system is used to control the energy storage system to supply power to the medical scanning systems that are ready to operate. That is, using the power supply and distribution system proposed in this embodiment only requires setting up an energy storage system between the power grid and the medical scanning systems. The energy dispatch control system monitors and controls the power demand of the energy storage system and each medical scanning system, thereby performing logical judgments and energy allocation to meet the power supply needs of multiple medical scanning systems within the medical building. Compared to the traditional power distribution method of setting up dedicated lines and networks for each medical scanning system, this significantly reduces the construction cost of the power supply and distribution system for medical buildings, and also improves the utilization rate of power resources and the overall power supply efficiency.

[0082] In an exemplary embodiment, the energy storage system 111 may include only a primary energy storage subsystem. This primary energy storage subsystem may be an energy density-type energy storage subsystem or a power density-type energy storage subsystem. One end of the energy density-type or power density-type energy storage subsystem is connected to the energy supply system, and the other end is connected to each of the medical scanning systems 113. The energy dispatch control system 112 is connected to the energy density-type or power density-type energy storage subsystem.

[0083] Among them, the energy density energy storage subsystem or the power density energy storage subsystem is used to obtain and store electrical energy from the energy supply system; the energy dispatch control system is used to control the energy density energy storage subsystem or the power density energy storage subsystem to supply power to the medical scanning system that is about to be put into operation.

[0084] In one alternative implementation, the energy storage system 111 may include an energy density-type energy storage subsystem, as shown in Figure 2, which illustrates a schematic diagram of an energy storage system. The energy storage system 111 may include at least one energy density-type energy storage subsystem 1111. One end of the energy density-type energy storage subsystem 1111 is connected to the energy supply system 110, and the other end is connected to each of the medical scanning systems 113. The energy dispatch control system 112 is connected to the energy density-type energy storage subsystem 1111.

[0085] For example, the energy density storage subsystem 1111 is used to obtain and store electrical energy from the energy supply system 110; the energy dispatch control system 112 is used to control the energy density storage subsystem 1111 to supply power to the medical scanning system to be operated.

[0086] For example, the energy density storage subsystem 1111 can have the characteristics of high energy storage and low power consumption, and is used to obtain and store a large amount of electrical energy from the energy supply system 110 in order to provide power to the medical scanning system that is about to be put into operation. For example, when the medical scanning equipment requires high power supply, multiple energy density storage subsystems 1111 connected in parallel can simultaneously output electrical energy to provide high power supply to the medical scanning system that is about to be put into operation.

[0087] Among them, for the multiple energy density energy storage subsystems 1111 connected in parallel, one end of the parallel connection is connected to the energy supply system 110 so that the energy supply system 110 can charge each energy density energy storage subsystem 1111; the other end of the parallel connection is connected to each medical scanning system 113 in a one-to-one correspondence so that the multiple energy density energy storage subsystems 1111 connected in parallel can provide high power supply to one or more medical scanning systems 113 that are ready to work.

[0088] In this embodiment, an energy density energy storage subsystem is used to form the energy storage system of the medical building. This allows the energy density energy storage subsystem to obtain a large amount of electrical energy from the energy supply system and provide high-power power to each medical scanning system to meet the power supply needs of multiple medical scanning systems within the medical building. The power supply and distribution system proposed in this embodiment is not only simple in structure and low in construction cost, but also reduces the demand on the power grid's power supply capacity compared to traditional dedicated lines and networks, thereby improving the utilization rate of the power grid's resources.

[0089] In another alternative implementation, the energy storage system 111 may include a power density energy storage subsystem, as shown in Figure 3, which illustrates a schematic diagram of another energy storage system. The energy storage system 111 may include at least one power density energy storage subsystem 1112. One end of the power density energy storage subsystem 1112 is connected to the energy supply system 110, and the other end of the power density energy storage subsystem 1112 is connected to each of the medical scanning systems 113. The energy dispatch control system 112 is connected to the power density energy storage subsystem 1112.

[0090] For example, the power density energy storage subsystem 1112 is used to obtain and store electrical energy from the energy supply system 110; the energy dispatch control system 112 is used to control the power density energy storage subsystem 1112 to supply power to the medical scanning system to be operated.

[0091] For example, the power density energy storage subsystem 1112 can have the characteristics of low energy storage and high power. After the power density energy storage subsystem 1112 obtains and stores electrical energy from the energy supply system 110, it can provide high-power power to the medical scanning system 113 that is ready to work.

[0092] For example, the energy storage system may include multiple power density energy storage subsystems 1112, each of which can be connected to a corresponding medical scanning system 113. This allows the connected medical scanning system 113 to receive high-power power from the corresponding power density energy storage subsystem 1112 when it requires such power. Furthermore, each of the multiple power density energy storage subsystems 1112 can be connected to an energy supply system 110, enabling each subsystem to obtain and store electrical energy from the energy supply system 110.

[0093] In this embodiment, a power density energy storage subsystem is used to form the energy storage system of the medical building. This allows the power density energy storage subsystem to obtain a large amount of electrical energy from the energy supply system and provide high-power power to each medical scanning system to meet the power supply needs of multiple medical scanning systems within the medical building. The power supply and distribution system proposed in this embodiment is not only simple in structure and low in construction cost, but also reduces the demand on the power grid's power supply capacity compared to traditional dedicated lines and networks, thereby improving the utilization rate of the power grid's resources.

[0094] In an exemplary embodiment, as shown in FIG4, the energy storage system 111 includes at least two energy storage subsystems. One end of the first energy storage subsystem is connected to the energy supply system 110, and the other end of the first energy storage subsystem is connected to one end of the second energy storage subsystem. The other end of the second energy storage subsystem is connected to each of the medical scanning systems 113. The energy dispatch control system 112 is connected to the first energy storage subsystem and the second energy storage subsystem.

[0095] A first-stage energy storage subsystem is used to obtain and store electrical energy from the energy supply system 110. A second-stage energy storage subsystem is used to obtain and store electrical energy from the first-stage energy storage subsystem. An energy dispatch control system 112 is used to control the second-stage energy storage subsystem to supply power to the medical scanning system 113 that is ready to be operated.

[0096] As shown in Figure 9, the first-stage energy storage subsystem is configured to achieve bidirectional energy flow with the second-stage energy storage subsystem, and the second-stage energy storage subsystem is configured to achieve bidirectional energy flow with each medical scanning system.

[0097] In an exemplary embodiment, as shown in FIG4, a schematic diagram of an energy storage system is illustrated. The first-stage energy storage subsystem may include at least one energy density energy storage subsystem 1111, and the second-stage energy storage subsystem may include at least one power density energy storage subsystem 1112. One end of each energy density energy storage subsystem 1111 is connected to the energy supply system 110, and the other end of each energy density energy storage subsystem 1111 is connected to one end of the corresponding power density energy storage subsystem 1112. The other end of the power density energy storage subsystem 1112 is connected to the corresponding medical scanning system 113. The energy dispatch control system 112 is connected to each energy density energy storage subsystem 1111 and each power density energy storage subsystem 1112, respectively.

[0098] For example, an energy density energy storage subsystem 1111 is used to obtain and store electrical energy from an energy supply system 110; a power density energy storage subsystem 1112 is used to obtain and store electrical energy from an energy density energy storage subsystem 1111; and an energy dispatch control system 112 is used to control the power density energy storage subsystem 1112 to supply power to the medical scanning system 113 that is ready to be operated.

[0099] For example, the energy density energy storage subsystem 1111 can have the characteristics of high energy storage and low power, and is used to obtain and store a large amount of electrical energy from the energy supply system 110 to supply power to the power density energy storage subsystem 1112; the power density energy storage subsystem 1112 can have the characteristics of low energy storage and high power, and after the power density energy storage subsystem 1112 obtains and stores electrical energy from the energy density energy storage subsystem 1111, it can supply power to the high-power medical scanning system 113.

[0100] For example, the energy density energy storage subsystem 1111 may include an energy storage unit and a power supply and distribution unit, wherein the number of energy storage units and power supply and distribution units may each be one or more, and the energy storage unit may be a lithium battery energy storage unit. Similarly, the power density energy storage subsystem 1112 may also include an energy storage unit and a power supply and distribution unit, wherein the number of energy storage units and power supply and distribution units may each be one or more, and the energy storage unit may be a supercapacitor energy storage unit.

[0101] Based on this, when the energy dispatch control system 112 determines that the medical scanning system 113 is to be operated, it can send a power supply control command to the power density energy storage subsystem 1112 to instruct the power density energy storage subsystem 1112 to supply power to the medical scanning system 113. For example, when supplying power to the medical scanning system 113, the power density energy storage subsystem 1112 can establish a power supply connection with the medical scanning system 113, thereby enabling the power density energy storage subsystem 1112 to supply power to the medical scanning system 113; while for the medical scanning system 113 that is not to be operated, the connection between the power density energy storage subsystem 1112 and the medical scanning system 113 can be kept disconnected, that is, the power density energy storage subsystem 1112 is prohibited from supplying high-power power to the medical scanning system 113 that is not to be operated.

[0102] In one optional implementation, as shown in Figure 5, taking the first-stage energy storage subsystem comprising an energy density energy storage subsystem 1111 and the second-stage energy storage subsystem comprising multiple power density energy storage subsystems as an example, the other end of the energy density energy storage subsystem 1111 is connected to one end of each power density energy storage subsystem 1112, and the other end of each power density energy storage subsystem is connected to the corresponding medical scanning system. Furthermore, the energy dispatch control system 112 is connected to each power density energy storage subsystem 1112. Based on this, the energy dispatch control system can be used to control the power density energy storage subsystem corresponding to the medical scanning system to supply power to the medical scanning system to be operated.

[0103] For example, the energy dispatch control system 112 may include a correspondence between each power density energy storage subsystem 1112 and the corresponding medical scanning system 113, such as power density energy storage subsystem 1 corresponding to medical scanning system 1, power density energy storage subsystem 2 corresponding to medical scanning system 2, etc. Based on this, when the energy dispatch control system 112 determines that the medical scanning system to be operated is medical scanning system 1, it can determine that the power density energy storage subsystem corresponding to the medical scanning system to be operated is power density energy storage subsystem 1 based on the correspondence. Then, the energy dispatch control system 112 can send a power supply control command to the power density energy storage subsystem 1, thereby controlling the power density energy storage subsystem 1 to supply power to the medical scanning system 1.

[0104] In this embodiment, an energy storage system for the medical building is composed of an energy density energy storage subsystem and a power density energy storage subsystem. This allows the energy density energy storage subsystem to obtain a large amount of electrical energy from the energy supply system and power the power density energy storage subsystem. Consequently, the power density energy storage subsystem can provide high-power power to various medical scanning systems to meet the power supply needs of multiple medical scanning systems within the medical building. The power supply and distribution system proposed in this embodiment is not only simple in structure and low in construction cost, but also reduces the demand on the power grid's power supply capacity compared to traditional dedicated lines and networks, thereby improving the utilization rate of the power grid's resources.

[0105] In an exemplary embodiment, for the power supply and distribution system shown in Figure 5 above, before controlling the power density energy storage subsystem 1112 corresponding to the medical scanning system 113 to supply power to the medical scanning system 113 to be operated, the energy dispatch control system 112 may first determine the operating power required by the medical scanning system 113 to be operated, and determine whether the total power of the power density energy storage subsystem 1112 connected to the medical scanning system 113 to be operated is greater than or equal to the operating power required by the medical scanning system 113 to be operated; if so, then control the power density energy storage subsystem 1112 connected to the medical scanning system 113 to be operated. The energy storage subsystem 1112 supplies power to the medical scanning system 113 to be operated; otherwise, the energy dispatch control system 112 may first control the energy density energy storage subsystem 1111 to charge the power density energy storage subsystem 1112 connected to the medical scanning system 113 to be operated, and then control the power density energy storage subsystem 1112 connected to the medical scanning system 113 to supply power to the medical scanning system 113 to be operated if the total power energy of the power density energy storage subsystem 1112 connected to the medical scanning system 113 to be operated is greater than or equal to the working power required by the medical scanning system 113 to be operated.

[0106] For example, the energy dispatch control system 112 can also be used to control a first target power density energy storage subsystem to charge the power density energy storage subsystem 1112 connected to the medical scanning system 113 when the total electrical energy of the power density energy storage subsystem 1112 connected to the medical scanning system 113 is less than the working electrical energy required by the medical scanning system 113; wherein, the first target power density energy storage subsystem is a power density energy storage subsystem other than the power density energy storage subsystem connected to the medical scanning system 113, and whose current electrical energy is greater than a preset electrical energy threshold. In other words, when the total electrical energy of the power density energy storage subsystem 1112 is less than the operating electrical energy required by the connected medical scanning system 113, not only can the energy density energy storage subsystem 112 be controlled to charge the power density energy storage subsystem 1112, but other power density energy storage subsystems with sufficient electrical energy can also be controlled to charge the power density energy storage subsystem 1112. This ensures that the total electrical energy of the power density energy storage subsystem 1112 can meet the operating electrical energy requirements of the medical scanning system 113, thereby ensuring a stable and reliable power supply for the medical scanning system.

[0107] In an exemplary embodiment, for the power supply and distribution system shown in FIG4 above, when the power density energy storage subsystem 1112 is connected to multiple medical scanning systems 113 and there are multiple medical scanning systems 113 that are to be operated, the energy dispatch control system 112 can also be used to determine the working power required by each medical scanning system 113 to be operated, and when it is determined that the total power of the power density energy storage subsystem 1112 is greater than or equal to the sum of the working power required by each medical scanning system 113 to be operated, the power density energy storage subsystem 1112 is controlled to supply power to each medical scanning system 113 to be operated.

[0108] For example, the energy dispatch control system 112 can also be used to control the power density energy storage subsystem 1112 to supply power to each medical scanning system 113 in sequence according to the priority of each medical scanning system 113 when the total power energy of the power density energy storage subsystem 1112 is less than the sum of the working power required by each medical scanning system 113 to be operated. In addition, the energy dispatch control system 112 can also be used to control the energy density energy storage subsystem 1111 to charge the power density energy storage subsystem 1112 after the previous medical scanning system 113 to be operated has finished supplying power, and after the charging is completed, control the power density energy storage subsystem 1112 to supply power to the next medical scanning system 113 to be operated.

[0109] In other words, when the total electrical energy of the power density energy storage subsystem 1112 is insufficient to meet the total working electrical energy required by multiple medical scanning systems 113 waiting to be operated, the power density energy storage subsystem 1112 can be prioritized to provide electrical energy to the highest priority medical scanning system 113 according to the priority of the multiple medical scanning systems 113 waiting to be operated. Then, when the highest priority medical scanning system 113 finishes working and the second highest priority medical scanning system 113 starts working, the energy density energy storage subsystem 1111 charges the power density energy storage subsystem 1112 to replenish the electrical energy of the power density energy storage subsystem 1112 so that the power density energy storage subsystem 1112 can supply power to the next second highest priority medical scanning system 113 waiting to be operated; and so on.

[0110] It should be noted that the energy dispatch control system 112 can control the energy density energy storage subsystem 1111 to replenish the power density energy storage subsystem 1112 with electrical energy after each medical scanning system 113 has finished working, or it can control the energy density energy storage subsystem 1111 to replenish the power density energy storage subsystem 1112 with electrical energy after two or more medical scanning systems 113 have finished working; this application embodiment does not specifically limit this.

[0111] For example, the energy dispatch control system 112 can also be used to control the energy density storage subsystem 1111 to charge the power density storage subsystem 1112 when the total electrical energy of the power density storage subsystem 1112 is less than the sum of the working electrical energy required by each medical scanning system 113 to be operated, and to control the power density storage subsystem 1112 to supply power to each medical scanning system 113 to be operated when the total electrical energy of the power density storage subsystem 1112 is greater than or equal to the sum of the working electrical energy required by each medical scanning system 113 to be operated.

[0112] In other words, if the total power energy of the power density energy storage subsystem 1112 is insufficient to meet the total working power required by multiple medical scanning systems 113, the power density energy storage subsystem 1112 can be charged by the energy density energy storage subsystem 1111 to ensure that the total power energy of the power density energy storage subsystem 1112 can simultaneously meet the working power required by multiple medical scanning systems 113, thereby ensuring the power supply stability and reliability of multiple medical scanning systems.

[0113] In an exemplary embodiment, based on the connection between the energy dispatch control system 112 and the energy density energy storage subsystems 1111 and each power density energy storage subsystem 1112, the energy dispatch control system 112 can also be used to control the energy density energy storage subsystem 1111 to charge the power density energy storage subsystem 1112 that is in a power shortage state when it is detected that the power density energy storage subsystem 1112 is in a power shortage state.

[0114] For example, the energy dispatch control system 112 can monitor the power status of each power density energy storage subsystem 1112 in real time. The power status can include a power shortage state and a non-power shortage state. The power shortage state can be used to characterize that the current power value of the power density energy storage subsystem 1112 is less than or equal to a preset power threshold. Conversely, the non-power shortage state can be used to characterize that the current power value of the power density energy storage subsystem 1112 is greater than the preset power threshold.

[0115] For example, each power density energy storage subsystem 1112 can report its own power status or current power value to the energy dispatch control system 112 in real time. It can also report its own power status or current power value to the energy dispatch control system 112 when the power status changes from a non-power shortage state to a power shortage state, or when the current power value is less than or equal to a preset power threshold.

[0116] For example, the energy dispatch control system 112 may also send a power status acquisition request to each power density energy storage subsystem 1112, so that each power density energy storage subsystem 1112 can return its own power status or current power value to the energy dispatch control system 112 after responding to the power status acquisition request.

[0117] It should be noted that, in this embodiment of the application, the monitoring method of the energy dispatch control system 112 for each power density energy storage subsystem 1112 is not limited. It can be active reporting or passive feedback. When the energy dispatch control system 112 detects that a power density energy storage subsystem 1112 is in a power shortage state, it can control the energy density energy storage subsystem 1111 to charge the power density energy storage subsystem 1112 that is currently in a power shortage state.

[0118] For example, the power supply and distribution unit in the power density energy storage subsystem 1112 can both obtain electrical energy from the energy storage unit of the power density energy storage subsystem 1112 and supply power to the corresponding connected medical scanning system, and obtain electrical energy from the energy density energy storage subsystem 1111 and charge the energy storage unit of the power density energy storage subsystem 1112; these two processes can be performed simultaneously or independently.

[0119] For example, the power supply and distribution unit in the power density energy storage subsystem 1112 can be two power supply and distribution units. One power supply and distribution unit is used to obtain electrical energy from the energy density energy storage subsystem 1111 and charge the energy storage unit of the power density energy storage subsystem 1112, and the other power supply and distribution unit is used to obtain electrical energy from the energy storage unit of the power density energy storage subsystem 1112 and supply power to the corresponding connected medical scanning system 113. Of course, the power supply and distribution unit in the power density energy storage subsystem 1112 can also be a single power supply and distribution unit, that is, the energy density energy storage subsystem 1111 charges the energy storage unit and the energy storage unit supplies power to the corresponding connected medical scanning system 113 through a single power supply and distribution unit. This application embodiment does not limit this.

[0120] The method described in this embodiment enables real-time energy scheduling, ensuring that each power density energy storage subsystem is always fully charged, thus preventing power outages during the medical scanning system and ensuring the reliability and stability of power supply for each medical scanning system.

[0121] In an exemplary embodiment, the energy dispatch control system 112 can also be connected to the energy supply system 110, and when the energy density energy storage subsystem 1111 is detected to be in a power shortage state, the energy supply system 110 controls the energy supply system 110 to supply power to the energy density energy storage subsystem 1111.

[0122] For example, when the energy supply system 110 includes a power grid distribution system, the power grid distribution system may include a power grid. Optionally, a substation system may also be set up between the power grid and the energy density storage subsystem 1111 to establish a connection between the power grid and the energy density storage subsystem 1111. The connection between the energy dispatch control system 112 and the power grid may be a connection between the energy dispatch control system 112 and the substation system. By controlling the substation system, the power grid can supply power to the energy density storage subsystem 1111.

[0123] For example, when the energy supply system 110 includes an energy harvesting system, the energy dispatch control system 112 can be connected to the energy harvesting system. When the energy density energy storage subsystem 1111 is in a power shortage state, the energy dispatch control system 112 controls the energy harvesting system to supply power to the energy density energy storage subsystem 1111 by controlling the energy harvesting system.

[0124] In another exemplary embodiment, the energy supply system 110 may include a power density energy storage subsystem 1112 in addition to the power grid distribution system and the energy harvesting system. That is, the power density energy storage subsystem 1111 can obtain energy from the power density energy storage subsystem 1112 in addition to obtaining energy from the power grid distribution system and the energy harvesting system, thus achieving energy replenishment. Exemplarily, the energy dispatch control system 112 is further configured to control a second target power density energy storage subsystem 1112 to charge the power density energy storage subsystem 1111 when the power density energy storage subsystem 1111 is detected to be in a power shortage state; wherein the current energy of the second target power density energy storage subsystem 1112 is greater than a preset energy threshold.

[0125] In other words, when the energy density type energy storage subsystem 1111 has low power and the second target power density type energy storage subsystem 1112 has high power, the power of the second target power density type energy storage subsystem 1112 can be fed back to the energy density type energy storage subsystem 1111 to increase the power of the energy density type energy storage subsystem 1111, thereby facilitating the energy density type energy storage subsystem 1111 to charge other power density type energy storage subsystems 1112 with lower power.

[0126] It should be noted that when the second target power density energy storage subsystem 1112 reverse charges the energy density energy storage subsystem 1111, the second target power density energy storage subsystem 1112 can also supply power to the corresponding medical scanning system 113; that is, assuming the second target power density energy storage subsystem 1112 first reverse charges the energy density energy storage subsystem 1111, then during the reverse charging process, the second target power density energy storage subsystem 1112 can also supply power to the corresponding connected medical scanning system 113; or, assuming the second target power density energy storage subsystem 1112 first supplies power to the corresponding connected medical scanning system 113, then during the power supply process, the second target power density energy storage subsystem 1112 can also reverse charge the energy density energy storage subsystem 1111.

[0127] Of course, reverse charging and power supply can be performed simultaneously or independently. For example, the priority of power supply can be greater than that of reverse charging. Suppose that the second target power density energy storage subsystem 1112 first reverse charges the energy density energy storage subsystem 1111. During the reverse charging process, the second target power density energy storage subsystem 1112 receives a power supply control command. At this time, reverse charging can be paused, and power can be supplied to the corresponding connected medical scanning system 113 first. After the power supply is completed, if the energy density energy storage subsystem 1111 is still in a power shortage state, and the current power of the second target power density energy storage subsystem 1112 is greater than the preset power threshold, then reverse charging to the energy density energy storage subsystem 1111 can continue.

[0128] In this embodiment, when the power density energy storage subsystem has sufficient power, it can also reverse charge the energy density energy storage subsystem when it is in a power shortage state. This not only improves the charging rate of the energy density energy storage subsystem, but also enables power sharing, further improving the utilization rate of power resources.

[0129] In an exemplary embodiment, referring to FIG6, the other end of the energy density energy storage subsystem 1111 can also be connected to each medical scanning system 113 respectively; on this basis, the energy dispatch control system 112 is also used to control the energy density energy storage subsystem 1111 to supply power to the target medical scanning system 113 when it is detected that there is a target medical scanning system 113 in a standby state among all medical scanning systems 113, and to control the power density energy storage subsystem 1112 to suspend supplying power to the target medical scanning system 113.

[0130] For example, for the target medical scanning system 113 in standby mode, the power required is relatively small. In this case, instead of using the high-power output power density energy storage subsystem 1112 to supply power, the low-power output energy density energy storage subsystem 1111 can be selected to supply power. This avoids damage to the power density energy storage subsystem 1112, thereby improving the service life of the power density energy storage subsystem 1112.

[0131] For example, when the medical scanning system 1 is in operation and the medical scanning system 2 is in standby mode, the energy dispatch control system 112 can control the power density energy storage subsystem 1112 to supply high power to the medical scanning system 1, and control the energy density energy storage subsystem 1111 to supply low power to the medical scanning system 2.

[0132] For example, other low-power electrical devices within the medical building can also be powered by the energy density storage subsystem 1111. Referring to Figure 7, the power supply and distribution system may also include other electrical devices 114 within the medical building, and the other end of the energy density storage subsystem 1111 is connected to other electrical devices 114; in this regard, the energy density storage subsystem 1111 can also be used to power other electrical devices 114.

[0133] In this embodiment, since the output power of the energy density energy storage subsystem is relatively small, from the perspective of energy conservation, environmental protection, and system lifespan, when the medical scanning system is in standby mode, the energy density energy storage subsystem can supply power to the medical scanning system to meet its standby power requirements. Of course, the energy density energy storage subsystem can also supply power to other low-power electrical devices within the medical building, thereby providing power to the entire medical building. Therefore, the power supply and distribution system for the medical building proposed in this embodiment can meet the power supply needs of electrical devices of varying power levels within the medical building, not only reducing construction costs but also improving the utilization rate of power resources.

[0134] In an exemplary embodiment, as shown in FIG8, a schematic diagram of another energy storage system is illustrated. The energy storage system 111 may include a flywheel energy storage unit 1113, a first power supply and distribution unit 1114, and a second power supply and distribution unit 1115. The first end of the first power supply and distribution unit 1114 is connected to the energy supply system 110, the second end of the first power supply and distribution unit 1114 is connected to the flywheel energy storage unit 1113, the third end of the first power supply and distribution unit 1114 is connected to the first end of the second power supply and distribution unit 1115, and the second end of the second power supply and distribution unit 1115 is connected to each of the medical scanning systems 113. An energy dispatch and control system 112 is connected to the first power supply and distribution unit 1114.

[0135] For example, the first power supply and distribution unit 1114 can be used to obtain electrical energy from the energy supply system 110 and charge the flywheel energy storage unit 1113; the energy dispatch control system 112 is used to control the first power supply and distribution unit 1114 to obtain electrical energy from the flywheel energy storage unit 1113 and output it to the second power supply and distribution unit 1115, so as to instruct the second power supply and distribution unit 1115 to supply power to the medical scanning system 113 to be operated.

[0136] The flywheel energy storage unit 1113 possesses both high energy density and high power density characteristics, enabling it to meet the power supply needs of multiple medical scanning systems 113 within the medical building. For example, the flywheel energy storage unit can support a power output of 1MW and an energy storage capacity of up to 2000kWh.

[0137] For example, when one or more medical scanning systems 113 require high-power operation, under the control and management of the energy dispatch control system 112, the first power supply and distribution unit 1114 in the energy storage system 111 can draw electrical power from the flywheel energy storage unit 1113, and then the second power supply and distribution unit 1115 performs power distribution (or shunt operation) to provide the required power to the medical scanning system 113 that requests power. For example, the flywheel energy storage unit 1113 outputs 2000Vac AC power, which is rectified by the first power supply and distribution unit 1114 to obtain 3500Vdc DC power. Then, after being stepped down by the second power supply and distribution unit 1115, it can obtain DC power in the range of 500Vdc to 1000Vdc to power the medical scanning system 113.

[0138] In this embodiment, a flywheel energy storage unit is used to power multiple high-power medical scanning systems in the medical building, which can meet the high power and large capacity power supply requirements of the medical building. Compared with the traditional dedicated line and dedicated network method, it can greatly reduce the construction cost of the power distribution system, reduce the capacity requirements of the power grid, and improve the utilization rate of power grid resources.

[0139] In an exemplary embodiment, for a medical scanning system in standby mode, the energy dispatch control system 112 can also be used to control the first power supply and distribution unit 1114 to obtain electrical energy from the energy supply system 110 and output it to the second power supply and distribution unit 1115 when it is detected that all medical scanning systems 113 are in standby mode, so as to instruct the second power supply and distribution unit 1115 to supply power to each medical scanning system 113.

[0140] For example, considering that all medical scanning systems 113 include both those in standby mode and those in operation mode, in addition to the flywheel energy storage unit 1113, the energy storage system 111 can also have a separate small energy storage unit (i.e., a low-power energy storage unit) to provide low-power power. This small energy storage unit can be connected to the energy supply system 110 through the first power distribution unit 1114. For some of the medical scanning systems 113 in standby mode, the small energy storage unit can provide low-power power to meet the standby power needs of these medical scanning systems.

[0141] For example, for some of the medical scanning systems 113 that are in standby mode, an independent small energy storage unit can be provided in each medical scanning system 113 so that when the medical scanning system 113 is in standby mode, the small energy storage unit in the medical scanning system 113 can provide standby power to the medical scanning system 113.

[0142] For example, the second power supply and distribution unit 1115 can also be connected to other electrical equipment in the medical building, in addition to the medical scanning system 113. The first power supply and distribution unit 1114 can obtain electrical energy from the energy supply system 110 and output it to the second power supply and distribution unit 1115, and instruct the second power supply and distribution unit 1115 to supply power to other electrical equipment in the medical building.

[0143] In this embodiment, for medical scanning systems in standby mode and other low-power electrical equipment in the medical building, the energy dispatch control system can control the first power supply and distribution unit to obtain electrical energy from the power grid and output it to the second power supply and distribution unit, thereby instructing the second power supply and distribution unit to supply power to the medical scanning systems and other electrical equipment in standby mode. This reduces damage to the flywheel energy storage unit, extends its service life, avoids wasting electrical resources, and improves the utilization rate of electrical resources.

[0144] In an exemplary embodiment, the energy storage system in the above embodiments can also recover and store electrical energy from the medical scanning system to be used. Since the medical scanning system generates various kinetic and thermal energies during medical scanning, these energies can be converted into DC regenerated electrical energy. The medical scanning system can charge the energy storage system based on this DC regenerated electrical energy, enabling the energy storage system to recover and store electrical energy from the medical scanning system to be used.

[0145] For example, medical scanning systems such as computed tomography (CT) systems and positron emission tomography / computed tomography (PET / CT) systems have a rotating body structure; the kinetic energy of the rotating body can be recovered and stored after the medical scan is completed; for example, the frequency converter driver in front of the rotor motor of the CT is connected to the power supply and distribution unit of the energy storage system. The frequency converter driver can transfer the DC regenerated electrical energy corresponding to the induced electromotive force generated during the deceleration of the CT to the power supply and distribution unit of the energy storage system, and then charge the energy storage unit in the energy storage system through the power supply and distribution unit.

[0146] For example, in the energy storage system shown in Figure 2, the frequency converter in the CT system can be connected to the power supply and distribution unit of the power density energy storage subsystem so as to transfer DC regenerated power to the power supply and distribution unit of the power density energy storage subsystem, and then charge the supercapacitor energy storage unit of the power density energy storage subsystem through the power supply and distribution unit of the power density energy storage subsystem.

[0147] For example, for the energy storage system shown in Figure 8 (which can be called a high-performance energy storage system), the frequency converter in the CT system can be connected to the second power supply and distribution unit in the high-performance energy storage system so as to transfer DC regenerated power to the second power supply and distribution unit in the high-performance energy storage system, and then transfer DC regenerated power to the first power supply and distribution unit in the high-performance energy storage system through the second power supply and distribution unit so that the first power supply and distribution unit can charge the flywheel energy storage unit in the high-performance energy storage system.

[0148] In this implementation, the energy storage system may include a power supply and distribution unit and an energy storage unit. The power supply connection between the power supply and distribution unit and the medical scanning system may be a bidirectional power supply connection. The power supply and distribution unit can obtain electrical energy from the energy storage unit and supply power to the medical scanning system. During the operation of the medical scanning system, it can also charge the energy storage unit through the power supply and distribution unit based on the DC regenerated electrical energy it generates, thereby realizing the energy recovery of the medical scanning system. This can maximize the energy utilization rate and resource utilization rate of the entire power supply and distribution system.

[0149] In an exemplary embodiment, the power supply and distribution system may further include an energy supply system, such as energy supply system 110 in Figures 2 to 8; energy storage system 111 is also connected to energy supply system 10; the energy supply system 110 may include at least one of a power grid distribution system, an energy harvesting system, and a medical scanning system; wherein the energy harvesting system is used to harvest clean energy and / or renewable energy; the energy storage system is used to obtain and store electrical energy from the power grid distribution system; and / or obtain and store electrical energy from the energy harvesting system; and / or recover and store electrical energy from the medical scanning system to be operated.

[0150] For example, the energy harvesting system may include, but is not limited to, a photovoltaic harvesting system, a wind power harvesting system, etc.; the energy storage system 111 may, under the control of the energy dispatch control system 112, acquire and store electrical energy from at least one of the power grid distribution system, the energy harvesting system, and the medical scanning system in operation.

[0151] For a power grid distribution system, it can include the power grid and the substation system. The electrical energy transmitted by the power grid is converted by the substation system and can then charge the energy storage system to ensure that the energy storage system can supply power to different medical scanning systems.

[0152] In this example, for medical buildings or hospitals, areas such as rooftops and open outdoor spaces can be fully utilized for the collection of renewable energy, achieving clean energy storage and reducing total carbon emissions. By combining the power grid distribution system, clean energy, renewable energy, and kinetic energy recovery, energy acquisition and storage can be achieved. This not only increases the diversity of energy acquisition but also reduces the power supply pressure on the power grid distribution system, improving the power supply reliability and energy utilization rate of medical buildings.

[0153] In an exemplary embodiment, based on the above embodiments, and with the energy dispatch control system 112 connected to the power grid distribution system, the energy dispatch control system 112 can also be used to monitor the operating status of the power grid distribution system, and when the operating status of the power grid distribution system indicates a fault in the power grid, disconnect the power supply and distribution connection between the power grid distribution system and the energy storage system 111; in the event of a fault in the power grid distribution system, the energy storage system can be powered by the energy harvesting system, or powered by the kinetic energy recovery of the medical scanning system, to meet the power demand of the energy storage system, and thus meet the power demand of each medical scanning system.

[0154] In this example, to ensure the power supply quality of the power distribution system in the medical building, the power distribution system can also have an off-grid operation function. In the event of unstable power quality in the power grid or substation system (such as three-phase instability, frequency fluctuations, surges, harmonics, three-phase imbalance, etc.), under the monitoring and control of the energy dispatch control system, the power distribution system can automatically cut off the power supply from the power grid and substation system and switch to the operation mode of being powered by the energy storage system. This ensures that the various medical scanning systems do not crash while also guaranteeing the demand for high-quality power input.

[0155] In an exemplary embodiment, referring to FIG9, a complete structural schematic diagram of a first power supply and distribution system is provided. This power supply and distribution system includes a substation system, an energy storage system, a medical scanning system, an energy dispatch control system, and an energy harvesting system. The energy storage system comprises an energy density energy storage subsystem and multiple power density energy storage subsystems. The energy density energy storage subsystem is connected to the power grid via the substation system and is also connected to the energy harvesting system to obtain and store electrical energy from the power grid and the energy harvesting system. Each energy density energy storage subsystem is connected to a corresponding power density energy storage subsystem to charge the respective subsystem. Each power density energy storage subsystem is connected to its corresponding medical scanning system to supply power to the connected medical scanning system.

[0156] For example, the power system may include, but is not limited to, distribution transformers or substations; the medical scanning system may include, but is not limited to, medical electrical equipment such as CT, MRI, and PET / CT; the energy harvesting system may support the collection and consumption of green and clean energy such as photovoltaic energy and wind power; and the energy dispatch control system, with the support of energy intelligent algorithms, can supply power to all electrical equipment in the entire medical building, monitor the status of the power grid and the power system, intelligently monitor and dispatch the flow and optimal allocation of energy in the entire power supply and distribution system, realize energy sharing and multi-energy complementarity among multiple energy storage subsystems, and achieve the goal of building a green and intelligent medical building with zero carbon, low power consumption, and high energy efficiency.

[0157] Referring to Figure 10(a), the energy density energy storage subsystem may include energy density energy storage units and a power supply and distribution unit. The energy density energy storage units may include, but are not limited to, one or more lithium-based batteries, sodium-based batteries, lead-acid batteries, etc., and multiple batteries can be connected in series or parallel to form an integrated structure. The power supply and distribution unit can perform energy conversion, such as rectification and voltage conversion; the power supply and distribution unit may include multiple transducers, which can be unidirectional or bidirectional transducers. For example, the voltage level of the energy density energy storage subsystem can reach 500V, the capacity can reach 1000kWh, and the rated output power can be approximately 500kW.

[0158] Referring to Figure 10(b), the power density energy storage subsystem may include a power density energy storage unit and a power supply and distribution unit. The power density energy storage unit may include, but is not limited to, supercapacitors, superconducting magnetic energy storage devices, etc. For example, the voltage level of the power density energy storage subsystem can reach 500V, the capacity can reach 50kWh, and the rated output power can be about 150kW.

[0159] Optionally, the energy storage system can be configured to enable bidirectional or multidirectional energy flow, achieve multi-energy complementarity, and maximize energy and resource utilization.

[0160] Referring to Figure 9, a green medical building contains multiple medical scanning systems or devices of various types. Each large medical scanning system (such as CT, MRI, PET / CT, SPECT, etc.) can be equipped with an independent power density energy storage subsystem to provide the high power density required for high-power operation.

[0161] The input terminals of the power density energy storage subsystems at the front end of each medical scanning system can be uniformly connected to the energy density energy storage subsystem at the next higher level through a DC bus bar. Due to the use of a DC bus bar (with a current carrying capacity of 1000A), energy sharing and multi-energy complementarity can be achieved among the various power density energy storage subsystems. Furthermore, the power density energy storage subsystems can replenish the energy density energy storage subsystems when other electrical equipment in the medical building requires power, and then distribute the power to other electrical equipment in the medical building, such as medium and low power electrical equipment powered by 220V, through the energy dispatch control system.

[0162] The energy dispatch and control system communicates and controls with the energy density energy storage subsystem, each power density energy storage subsystem, and the energy harvesting system. It also communicates with each medical scanning system. Based on this, when the energy dispatch and control system identifies a medical scanning system requiring high-power supply, it can send control commands to the corresponding power density energy storage subsystem, enabling that subsystem to supply power to the connected medical scanning system.

[0163] When performing medical scanning tasks, the high-power power supply requirement of the medical scanning system is mainly due to the need for high-power power supply to the main circuit load of the medical scanning system. When power is supplied to the medical scanning system through the power density energy storage subsystem, the power density energy storage subsystem can supply power to the main circuit load and the auxiliary loads in the auxiliary circuit of the medical scanning system.

[0164] Meanwhile, for CT-type equipment, such as CT and PET / CT, which have a rotating body structure, during medical scanning, the main drive load in its auxiliary circuit transmits the DC regenerated electrical energy corresponding to the induced electromotive force generated during the deceleration of the rotating body structure to the output terminal of the power distribution unit of the corresponding connected power density energy storage subsystem. This charges the power density energy storage unit in the corresponding power density energy storage subsystem, thus achieving energy recovery. The power distribution unit in the power density energy storage subsystem can be a bidirectional DC-DC converter, which can convert the DC regenerated electrical energy (e.g., 800Vdc, 15kW) into the voltage level corresponding to the power density energy storage unit (e.g., 500Vdc) and charge it, thereby recovering the kinetic energy of the CT rotating body.

[0165] In addition, for medical scanning systems in standby mode, i.e. when the medical scanning system does not require high power, under the monitoring, management and control of the energy dispatch control system, the power supply of the medical scanning system in standby mode can be switched to be directly powered by the energy density energy storage subsystem, thereby achieving energy-saving and environmentally friendly low-power operation.

[0166] For example, since energy density-type energy storage subsystems typically use low-discharge-rate (e.g., rated 1C charge / discharge) lithium-ion battery cells, this application proposes a "recyclable cell recycling technology" (recyclable battery cell reuse) to achieve high compatibility and environmental friendliness of the energy storage power supply and distribution system. Optionally, the power supply and distribution system can use end-of-life power lithium-ion battery cells from other industries (e.g., electric vehicles) (typically used in electric vehicles for their high charge / discharge rate characteristics, such as 10C), installed in the energy density-type energy storage subsystem of this application, and combined with cell active balance technology, adjusted to allow for low-C charging and low-C discharging rates. This achieves the recycling of battery resources, greatly reducing the battery material costs of power supply and distribution systems in medical buildings or hospitals, and avoiding the waste of social resources.

[0167] Furthermore, this example also ensures the power supply quality of the power distribution system in medical buildings or hospitals. The energy storage power distribution system operating in this multi-medical scanning system has the function of off-grid operation. Therefore, in the event of unstable power quality in the substation or power grid (such as three-phase instability, frequency fluctuations, surges, harmonics, three-phase imbalance, etc.), under the monitoring and control of the energy dispatch control system, the power distribution system can automatically cut off the power supply from the power grid and substation, and switch to the operation mode of being powered by the energy density energy storage subsystem and the power density energy storage subsystem. This ensures that the various medical scanning systems do not crash, while also guaranteeing the demand for high-quality power input.

[0168] In an exemplary embodiment, the aforementioned energy density-type and power density-type energy storage subsystems can also be replaced by high-performance energy storage subsystems to achieve a high degree of integration of the power supply and distribution system in medical buildings or hospitals, thereby reducing construction costs, saving space resources, and improving overall energy conversion efficiency. Referring to Figure 11, a complete structural schematic diagram of the second type of power supply and distribution system is provided.

[0169] For example, the high-performance energy storage subsystem may include, but is not limited to, a flywheel energy storage unit, a first power supply and distribution unit, and a second power supply and distribution unit; the high-performance energy storage subsystem has both high energy density and high power density characteristics, wherein the flywheel energy storage unit can support a power output of up to 1MW and an energy storage capacity of up to 2000kWh.

[0170] For example, when one or more medical scanning systems require high-power operation, under the control and management of the energy dispatch control system, the first power supply and distribution unit in the high-performance energy storage subsystem draws electrical power from the flywheel energy storage unit, and then the second power supply and distribution unit performs power distribution (or current sharing) to provide the corresponding power to each medical scanning system that requests power. For example, the flywheel energy storage unit outputs 2000Vac AC power, which is rectified by the first power supply and distribution unit to obtain 3500Vdc, and then stepped down to the range of 500Vdc to 1000Vdc by the second power supply and distribution unit, thus supplying power to each medical scanning system, that is, to power the main circuit load and auxiliary circuit load of each medical scanning system.

[0171] For medical scanning systems in standby mode, power can be drawn directly from the power grid. During periods when the medical systems do not require high-power operation, under the logic control of the energy dispatch control system, the flywheel energy storage unit obtains energy from the power grid through the first power supply and distribution unit; at this time, the energy input of the second power supply and distribution unit does not need to originate from the flywheel energy storage unit, but directly obtains power input from the substation through the first power supply and distribution unit.

[0172] The power supply and distribution systems described in the above embodiments are applied to medical buildings that include multiple medical scanning systems. They can significantly reduce the demand for power grid distribution capacity, reduce the construction cost of the power supply and distribution systems in medical buildings, and achieve sustainable power supply that is green, low-energy, high-efficiency, and resource-efficient. Through intelligent scheduling, they can reduce the power supply pressure on the grid side, improve the power quality, and ensure the efficient and stable operation of each medical scanning system.

[0173] In an exemplary embodiment, as shown in FIG12, a power distribution management method for a power supply and distribution system is also provided. This method can be applied to the power supply and distribution system in any of the above embodiments, and the method includes the following steps:

[0174] Step 1201: Obtain the working status of each medical scanning system and determine the medical scanning system to be used.

[0175] Step 1202: Control the energy storage system to supply power to the medical scanning system to be used.

[0176] The power supply and distribution system includes an energy storage system, an energy dispatch control system, and multiple medical scanning systems. The energy storage system is connected to each medical scanning system, and the energy dispatch control system is connected to both the energy storage system and each medical scanning system. Optionally, the power distribution management method can be applied to the energy dispatch control system in the power supply and distribution system. Of course, the power distribution management method can also be applied to the core processor or controller of the power supply and distribution system, etc. The embodiments of this application do not specifically limit this application.

[0177] Taking the application of this power distribution management method to an energy dispatch control system as an example, the energy dispatch control system can obtain the working status of each medical scanning system in real time and determine the medical scanning system to be worked based on the working status of each medical scanning system. The working status of the medical scanning system can include scanning status and standby status. When the working status of the medical scanning system switches from standby status to scanning status, it can be determined that the medical scanning system is the medical scanning system to be worked.

[0178] For medical scanning systems that are not in operation, since they require a large amount of power during the scanning process, the energy storage system can be controlled to supply high-power power to the medical scanning system that is not in operation. For medical scanning systems that are not in operation, such as those in standby mode, the energy dispatch control system can also control the energy storage system to supply low-power power to the medical scanning system that is not in operation, so as to meet the normal power consumption needs of the medical scanning system when it is powered on.

[0179] For example, the energy dispatch control system can acquire the operating status of each medical scanning system actively or passively. For instance, the energy dispatch control system can query the operating status of each medical scanning system at preset time intervals and receive feedback from each system; alternatively, each medical scanning system can proactively report its operating status to the energy dispatch control system when its operating status changes. This allows the energy dispatch control system to provide different power supply requirements for different medical scanning systems. Specific implementation methods can be found in the descriptions of the various embodiments of the power supply and distribution system described above, and will not be repeated here.

[0180] In this embodiment, a power supply and distribution system suitable for medical buildings is provided, including an energy storage system, an energy dispatch control system, and multiple medical scanning systems. The energy storage system is connected to each medical scanning system, and the energy dispatch control system is connected to both the energy storage system and each medical scanning system. A corresponding power distribution management method is also provided for this system. This method involves acquiring the operating status of each medical scanning system to determine which system is ready to operate, and then controlling the energy storage system to supply power to that system. Using this system and method, for each medical scanning system within the medical building, only an energy storage system needs to be installed between the power grid and the medical scanning system. This system obtains and stores electrical energy from the grid to meet the power supply needs of multiple medical scanning systems within the building. Compared to the traditional method of setting up dedicated lines and networks for each medical scanning system, this significantly reduces the construction cost of power supply and distribution systems in medical buildings and improves the utilization rate of power resources.

[0181] In an exemplary embodiment, the power supply and distribution system may further include an energy supply system, and the energy storage system is connected to the energy supply system. The energy supply system may include, but is not limited to, at least one of a power grid distribution system, an energy harvesting system, and a medical scanning system. The power grid distribution system includes equipment at different levels, such as substations, distribution transformers, and three-phase power grid distribution boxes. The power distribution management method may further include: acquiring the status of the power grid distribution system; and, in response to the power grid distribution system's status satisfying a preset state, switching the energy storage system to an off-grid state. In the off-grid state, the energy storage system is used to obtain electrical energy from the energy harvesting system and / or the medical scanning system, and to supply power to the medical scanning system that is ready to operate.

[0182] The preset states can include states where the power grid experiences significant fluctuations, such as three-phase instability, phase loss, power outage, or power failure. When the energy dispatch and control system detects that the state of the power grid distribution system meets the preset states, the energy storage system can be switched to an off-grid state. In the off-grid state, the electrical energy stored in the energy storage system will power various medical scanning systems, i.e., off-grid power supply will be implemented until the power grid returns to normal.

[0183] For example, in the case of slight power grid fluctuations, such as when the power grid fluctuation frequency is less than a preset fluctuation frequency threshold, i.e., slight power grid fluctuations, such as fluctuation frequency of 50Hz±5%, or voltage fluctuations less than a preset voltage fluctuation threshold, i.e., brief voltage decreases or increases, such as voltage of 380V±10%, the energy storage system can have the ability to automatically perform load power supply, i.e., to power each medical scanning system with the electrical energy stored in the energy storage system.

[0184] It should be noted that the energy dispatch control system can continuously monitor and record the status of the power grid distribution system. On the one hand, it can implement different protection measures when the power grid is in different states. On the other hand, it also facilitates later maintenance and inspection.

[0185] For example, in off-grid mode, the energy dispatch control system can also continuously monitor the power of the energy storage system so that corresponding protective measures can be taken when the total power of the energy storage system is low. Optionally, the energy dispatch control system can also acquire the power of the energy storage system; and output an alarm message when it is determined that the power of the energy storage system is lower than a first preset power threshold; and switch the state of the energy storage system to a low-power state when it is determined that the power of the energy storage system is lower than a second preset power threshold; wherein, in the low-power state, the energy storage system stops supplying power to the medical scanning system that is to be operated; the second preset power threshold is less than the first preset power threshold.

[0186] In other words, when the total energy of the energy storage system is too low, i.e. below the first preset energy threshold, such as below 20%, an alarm message can be issued to alert the user. Furthermore, when the total energy of the energy storage system continues to decrease until it falls below the second preset energy threshold, such as below 10%, the system can stop supplying high-power power to various loads and low-power power to some devices, such as entering a mode where scanning tasks cannot be performed and entering a low-power state. In the low-power state, the energy storage system can be used to supply power to some low-power loads, such as powering computer mainframes in medical buildings, to ensure that the data stored in the computer mainframes is not lost.

[0187] In this embodiment, different protection measures can be taken for different states of the power grid and different states of the energy storage system, so as to improve the power supply reliability and intelligence of the entire power supply and distribution system.

[0188] In one embodiment, the energy storage system includes multiple different power source modules, and the above-described medical power supply and distribution management method further includes:

[0189] Obtain the target operating power of the medical scanning system to be operated when executing the target scanning protocol;

[0190] Based on the target operating power, a target power source module is determined from the plurality of different power source modules;

[0191] The medical scanning system to be operated is powered by controlling the release of electrical energy stored in the target power source module.

[0192] In this embodiment, the electrical energy of the power source module can be utilized more rationally, reducing performance redundancy, lowering hardware construction costs, maximizing the service life of the energy storage unit, and further realizing the maximization and most rational utilization of the power supply and distribution hardware resources of the site and equipment.

[0193] Based on the same inventive concept, this application also provides a medical power supply and distribution management device for implementing the aforementioned medical power supply and distribution management method. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more embodiments of the medical power supply and distribution management device provided below can be found in the limitations of the medical power supply and distribution management method described above, and will not be repeated here.

[0194] In one exemplary embodiment, the medical power supply and distribution management device includes:

[0195] The acquisition module is used to acquire the working status of each medical scanning system and determine the medical scanning system to be used.

[0196] The power supply module is used to control the energy storage system to supply power to the medical scanning system that is ready to be used.

[0197] Each module in the aforementioned medical power supply and distribution management device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0198] With the development of medicine and technology, more and more medical equipment is being used in hospitals, providing a foundation for doctors' diagnosis and treatment. The power supply system is a crucial component of medical equipment, a prerequisite for its proper functioning.

[0199] Taking a computed tomography (CT) scanner as an example, in related technologies, the power supply to the CT scanner is usually achieved by connecting the power cord of the CT scanner to an external three-phase power distribution box, such as the three-phase interface of the distribution box on the wall of the CT scanning room from the hospital's three-phase transformer.

[0200] However, in related technologies, there is a technical problem of high construction costs for site power distribution when medical equipment has a large capacity requirement for external grid power (i.e., external power supply).

[0201] Based on this, this application provides a medical device power distribution system, including a main load circuit and an external power supply. The main load circuit includes a main load device and an energy storage system. One end of the energy storage system is connected to the external power supply, and the other end is connected to the main load device. The main load device is powered by the energy storage system. In this medical device power distribution system, by setting up an energy storage system in the main load circuit, the energy storage system can be charged by repeatedly obtaining electrical energy from the external power supply, storing a sufficiently large capacity of electrical energy. In this way, the external power supply does not need to provide a high capacity of electrical energy, which reduces the capacity configuration requirements of the external power supply, and thus reduces the construction cost of the site power distribution. When the main load device in the main load circuit operates under different power conditions, it can be powered by the electrical energy stored in the energy storage system, significantly reducing the capacity requirement of the medical device for the external power supply, thereby reducing the construction cost of the site power distribution.

[0202] In an exemplary embodiment, as shown in FIG13, a medical device power distribution system 21 is provided. The medical device power distribution system 21 includes a main load circuit 210 and an external power supply 220. The main load circuit 210 includes a main load device 211 (also referred to as the main circuit load). The main load circuit 210 also includes an energy storage system 212. One end of the energy storage system 212 is connected to the external power supply 220, and the other end of the energy storage system 212 is connected to the main load device 211.

[0203] The main load device 211 is powered by the energy storage system 212.

[0204] In this embodiment of the application, the main load device 211 in the main load circuit 210 typically has different power level requirements during operation, including low power (e.g., ≤30kW), medium power (e.g., 30-80kW range) and high power (e.g., ≥80kW).

[0205] In this context, the main load device 211 refers to the key components or terminal loads that perform scanning tasks in a medical scanning system, typically high-power loads (usually ranging from tens of kW to over 100 kW of electrical power). Taking a CT system as an example, the main load device 211 can refer to high-voltage generators and X-ray tubes, while in an MRI magnetic resonance imaging system, the main load device 211 can refer to GPA gradient power amplifiers, etc.

[0206] In related technologies, medical equipment is powered by an external power source. In order to meet the power supply requirements of various power levels, the capacity of the external power source usually needs to reach the maximum power required by the medical equipment, which results in a high construction cost for the site power distribution.

[0207] In order to reduce the construction cost of site power distribution, this embodiment of the application sets up an energy storage system 212 in the main load circuit 210. The energy storage system 212 can store electrical energy through an external power supply 220. In this way, the external power supply 220 does not need to provide a high capacity of electrical energy, reducing the capacity of the external power supply 220, thereby reducing the construction cost of site power distribution.

[0208] The main load device 211 in the main load circuit 210 is no longer directly powered by the external power supply 220. Instead, the energy storage system 212 installed in the main load circuit 210 can store a sufficiently large amount of electrical energy by charging from the external power supply 220 multiple times before supplying power to the main load device 211. In this way, when the main load device 211 in the main load circuit 210 is operating under high power conditions, it can be powered by the electrical energy stored in the energy storage system 212, instead of being supplied with a large amount of electrical energy by the external power supply 220.

[0209] In this embodiment, the external power supply 220 includes a terminal distribution point on the user side of the power grid distribution system, such as a three-phase power grid distribution box. The external power supply 220 can support multiple power input types, including three-phase AC power, single-phase AC power, or DC power, etc.

[0210] The medical device power distribution system provided in this application includes a main load circuit and an external power supply. The main load circuit includes a main load device and an energy storage system. One end of the energy storage system is connected to the external power supply, and the other end is connected to the main load device. The main load device is powered by the energy storage system. In this medical device power distribution system, by setting up an energy storage system in the main load circuit, the energy storage system can be charged multiple times by obtaining electrical energy from the external power supply, storing a sufficiently large capacity of electrical energy. Thus, the external power supply does not need to provide a high capacity of electrical energy, reducing the capacity requirements of the external power supply and consequently reducing the construction cost of the site power distribution. When the main load device in the main load circuit operates under different power conditions, it can be powered by the electrical energy stored in the energy storage system, significantly reducing the capacity requirements of the medical device for external power supply and thus reducing the construction cost of the site power distribution.

[0211] In addition to the main load circuit, the power distribution system for medical equipment also includes an auxiliary load circuit (also referred to as an auxiliary circuit). Based on this, in an exemplary embodiment, as shown in FIG14, the power distribution system 21 for medical equipment also includes an auxiliary load circuit 230; the auxiliary load circuit 230 includes an auxiliary load device 231 (also referred to as an auxiliary load), and the auxiliary load device 231 is connected to an external power supply 220;

[0212] The auxiliary load device 231 is powered by an external power supply 220.

[0213] In this embodiment, the auxiliary load circuit 230 includes at least one auxiliary load device 231. The auxiliary load device 231 refers to all other components or loads besides the main load device 211, and typically has low power requirements. Taking a CT system as an example, the auxiliary load device 231 includes the patient support bed, various loads on the CT gantry (such as control boards, image detectors, heat sinks, data signal processing transceivers, etc.), the CT gantry main motor driver, the console computer, the image reconstruction computer, etc.

[0214] Typically, the auxiliary load device 231 in the auxiliary load circuit 230 has a lower power requirement than the main load device 211 and can be directly powered by the external power supply 220. Therefore, the auxiliary load device 231 can be connected to the external power supply 220, and the external power supply 220 can directly power the auxiliary load device 231.

[0215] The medical device power distribution system provided in this application embodiment further includes an auxiliary load circuit. The auxiliary load circuit includes an auxiliary load device connected to an external power source. The auxiliary load device is powered by the external power source. Since the auxiliary load circuit has a relatively low power requirement, it can be directly connected to an external power source for direct power supply.

[0216] When the external power supply is unavailable, the device can be powered by the energy storage system in the main load circuit. Based on this, in an exemplary embodiment, as shown in FIG15, the medical device power distribution system 21 further includes an auxiliary load circuit 230; the auxiliary load circuit 230 includes an auxiliary load device 231, which is connected to the energy storage system 212;

[0217] When the external power supply is unavailable, the auxiliary load device 231 is powered by the energy storage system 212.

[0218] Normally, when the external power supply 220 is available, the auxiliary load device 231 in the auxiliary load circuit 230 can be powered by the external power supply 220 through connection with the external power supply 220.

[0219] When the external power supply 220 is unavailable, it can no longer supply power to the auxiliary load device 231 in the auxiliary load circuit 230. In this case, the auxiliary load device 231 can be connected to the energy storage system 212 in the main load circuit 210, and the energy storage system 212 can supply power to the auxiliary load device 231.

[0220] The medical device power distribution system provided in this application embodiment further includes an auxiliary load circuit. The auxiliary load circuit includes an auxiliary load device connected to an energy storage system. When the external power supply is unavailable, the auxiliary load device is powered by the energy storage system. This medical device power distribution system also provides another optional method for powering the auxiliary load device: when the external power supply is unavailable, the auxiliary load device can be connected to the energy storage system in the main load circuit, and the energy storage system will power the auxiliary load device.

[0221] Based on any of the above embodiments, the configuration of the energy storage system will be described. Accordingly, in an exemplary embodiment, as shown in FIG16, the energy storage system 212 includes a first DC power source module 213, a second DC power source module 214, a first inverter 215, and a second inverter 216;

[0222] One end of the first DC power source module 213 is connected to the first inverter 215, and the other end of the first DC power source module 213 is connected to the second inverter 216; the first inverter 215 is also connected to the external power supply 220.

[0223] One end of the second DC power source module 214 is connected to the second inverter 216, and the other end of the second DC power source module 214 is connected to the main load device 211 in the main load circuit 210.

[0224] The first converter 215 is used to convert AC power into medium-voltage DC power; the second converter 216 is used to convert medium-voltage DC power into high-voltage DC power.

[0225] A DC power source is a power supply device that provides stable voltage, current, and power output. Unlike general power supplies, DC power sources have greater current and voltage output capabilities and stronger stability, and their output capacity can meet the needs of various electronic devices or power systems.

[0226] In this embodiment, the first DC power source module 213 is an energy density type power source module, and the second DC power source module 214 is a power density type power source module.

[0227] The first DC power source module 213, as shown in Figure 17, includes at least an energy density storage unit, a sub-controller, power semiconductor switches, passive devices, and sensors. The energy density storage unit may, but is not limited to, electrochemical energy storage devices, such as lithium-based batteries, nickel-based batteries, sodium-based batteries, lead-acid batteries, and solid-state batteries. The second DC power source module 214, as shown in Figure 18, includes at least a power density storage unit, a sub-controller, power semiconductor switches, passive devices, and sensors. The power density storage unit may, but is not limited to, electromagnetic energy storage devices, such as supercapacitors and superconducting magnetic energy storage. The power semiconductor switches include, but are not limited to, MOSFETs and IGBTs; the sub-controller may, but is not limited to, a control board based on a microcontroller, MCU, DSP, FPGA, or CPU; and the passive devices may be power-level digital rheostats or programmable electronic loads.

[0228] In addition, in this embodiment of the application, the DC bus voltage level of the second DC power source module includes a first voltage level and a second voltage level; the second voltage level is lower than the first voltage level. Specifically, the first voltage level can be 1000V, and the second voltage level can be 500V.

[0229] In this embodiment, the first converter 215 can be an AC-DC converter, used to convert AC power input from an external power source into DC power. The second converter 216 can be a DC-DC converter, used to convert the medium-voltage DC power input to the first converter 215 into high-voltage DC power.

[0230] It should be noted that in the embodiments of this application, Figure 16 shows the configuration of the energy storage system based on Figure 14. The configuration of the energy storage system in Figure 13 or Figure 15 is also shown in Figure 16. The embodiments of this application will not elaborate on this further or draw any additional diagrams.

[0231] In addition, in this embodiment of the application, the energy storage system may have only one DC power source, that is, only include a second DC power source module. In an exemplary embodiment, as shown in FIG19, the energy storage system 212 includes a first inverter 215, a second inverter 216, and a second DC power source module 214;

[0232] One end of the first inverter 215 is connected to the external power supply 220, and the other end of the first inverter 215 is connected to the second inverter 216; one end of the second DC power source module 214 is connected to the second inverter 216, and the other end of the second DC power source module 214 is connected to the main load device 211 in the main load circuit.

[0233] When the main load device 211 has a power supply requirement, it is powered only by the electrical energy stored in the second DC power source module 214.

[0234] Figure 20 shows a schematic diagram of the connection relationships of various components in the power distribution system of medical equipment. The auxiliary load circuit includes a stator-side load, a main motor unit, and a rotor-side load. All three loads are connected to and powered by an external power supply 220. The stator-side load is also connected to the first DC power source module 213 via an electronic switch (S-P1). The main motor unit is also connected to the second DC power source module 214 via two electronic switches (S-N4, S-N5).

[0235] In this embodiment, the switching elements in the medical equipment power distribution system are all electronic switches, such as S-N1, S-N2, S-N3, S-N4, S-N5, and S-P1 as shown in Figure 20. This embodiment does not use traditional mechanical hard-switching devices, such as air switches, circuit breakers, relays, and contactors, but instead uses electronic switching devices that are at least 80% smaller in size, such as SiC or GaN MOSFETs (silicon carbide or gallium nitride metal oxide semiconductor field-effect transistors). Therefore, the space occupied by the switching devices in the original medical equipment power distribution box can be significantly reduced. The electronic switching devices can be low-voltage, low-power, medium-voltage, medium-power, or high-voltage, high-power types.

[0236] For example, when the main load device 211 in the main load circuit 210 has a power supply requirement, the first DC power source module 213 and the second DC power source module 214 store energy in advance. Referring again to FIG20, when the first DC power source module 213 stores energy, the AC power in the external power supply 220 is converted into DC power by the first converter 215, and then the converted DC power is input to the first DC power source module 213 for storage.

[0237] When the second DC power source module 214 is storing energy, it can be charged by the first DC power source module 213. The first DC power source module 213 boosts the electrical energy required by the second DC power source module 214 through the second inverter 216, and inputs the boosted DC power into the second DC power source module 214 for storage.

[0238] Furthermore, when the main load device 211 in the main load circuit 210 has a power supply requirement, if the main load device 211 is operating in a low-power or high-power mode, the second DC power source module 214 can input the stored electrical energy to the main load device 211 to supply power to it. Specifically, if the main load device 211 is operating in a low-power mode, the second DC power source module 214 needs to adjust its output voltage level to the second voltage level of 500V; if the main load device 211 is operating in a high-power mode, the second DC power source module 214 needs to adjust its output voltage level to the first voltage level of 1000V.

[0239] If the main load device 211 is operating under medium power conditions, the first DC power source module 213 and the second DC power source module 214 can simultaneously supply power to the main load device 211.

[0240] When the auxiliary load device 231 in the auxiliary load circuit 230 has a power supply requirement, it can be directly powered by the external power supply 220. When the external power supply 220 is unavailable, it can be powered by the first DC power source module 213 and the second DC power source module 214 in the energy storage system 212. Referring to Figure 20, when the stator-side load and the main motor unit in the auxiliary load circuit 230 have a power supply requirement, the first DC power source module 213 can input the stored electrical energy to the stator-side load to power it, and the second DC power source module 214 can input the stored electrical energy to the main motor unit to power it.

[0241] Referring again to Figure 18, when the second DC power source module 214 supplies power to the main load device 211 in the main load circuit 210, SU-P1 can be controlled to disconnect, and SU-P4 can be controlled to conduct. Specifically, the switch of SU-P5 is controlled to be in a high-speed regulating on / off state to output current to the main load device 211 in the main load circuit 210 to supply power. When the second DC power source module 214 needs charging, SU-P1 is controlled to conduct, so that current is delivered to the capacitor module to charge it.

[0242] When in a mode without external power supply (i.e., when the external power supply is unavailable), all power levels required by the main load circuit 210 can be supplied independently by the second DC power source module 214 or jointly by the first DC power source module 213 and the second DC power source module 214 through a 'power shunting method'. Under the condition that both DC power source modules are outputting together, the DC bus voltage of the medical equipment power distribution system is 500V (in practice, it is in the 400-500Vdc range). Furthermore, the first DC power source module 213 performs 'active balancing' discharge for the second DC power source module 214 through the second inverter 216 to maintain the stability of the DC bus voltage of the medical equipment power distribution system (preventing potential risks such as insufficient power supply or poor power quality in the main load circuit due to voltage drops in the discharge voltage of the internal single supercapacitor module when using the 500V level second DC power source module 214).

[0243] The two DC power source modules in this embodiment are not limited to using only energy storage components such as lithium-ion batteries, sodium batteries, and supercapacitors; introducing a flywheel energy storage unit as another power source is also feasible. Photovoltaic and wind power systems can also be connected to the DC bus, correspondingly expanding the storage capacity of the first DC power source module 213 and the second DC power source module 214, thereby realizing the access, recovery, and utilization of green and clean energy.

[0244] Additionally, the slip ring in Figure 20 is a CPT high-frequency power loop. The input side of the slip ring is designed with a stator-side converter, which provides high-frequency electrical energy (voltage and current) to the CPT non-contact high-frequency power slip ring. The slip ring can also be a DC power loop, in which case the stator-side converter is not included in the system.

[0245] The medical device power distribution system provided in this application embodiment includes an energy storage system comprising a first DC power source module, a second DC power source module, a first inverter, and a second inverter. One end of the first DC power source module is connected to the first inverter, and the other end of the first DC power source module is connected to the second inverter. The first inverter is also connected to an external power source. One end of the second DC power source module is connected to the second inverter, and the other end of the second DC power source module is connected to the main load device in the main load circuit. The first inverter is used to convert AC power into medium-voltage DC power. The second inverter is used to convert medium-voltage DC power into high-voltage DC power. In this medical device power distribution system, by setting the first DC power source module and the second DC power source module in the energy storage system, the electrical energy of the external power source can be stored through the energy storage units in the first DC power source module and the second DC power source module. When the load device has a power supply demand, the stored electrical energy can be input to the load device through the first DC power source module and the second DC power source module to supply power to it. Furthermore, by setting a first converter and a second converter in the energy storage system, the electrical energy from the external power source can be converted into a form that the DC power source module can support, thereby realizing the energy storage of the DC power source module.

[0246] In one exemplary embodiment, this application also provides a medical device that includes the medical device power distribution system described in the above embodiments.

[0247] It is understood that the design of each structure in the power distribution system of medical equipment in the above embodiments is only one example of achieving the technical effect of this application. In practical applications, it can also be adapted to achieve easily conceivable technical effects. The embodiments of this application do not limit its structure.

[0248] In related technologies, medical equipment has an excessive demand for site power distribution capacity, usually ranging from tens to hundreds of kVA, and the power factor is usually only between 0.6 and 0.8. However, in actual operation, most of the time only a few dozen kVA of power demand (power distribution capacity demand) is required. This to some extent wastes the power distribution capacity of the State Grid and results in excessively high total operating costs for user terminal equipment (such as supporting hardware construction, site renovation, grid usage fees, etc.).

[0249] Based on this, this application provides a method for powering medical devices. The energy storage system is equipped with multiple different power source modules. Since medical devices have varying power requirements during actual operation, different power source modules should be selected to power the medical devices for different power requirements. Therefore, when power is needed for the medical devices, the target power source module can be determined from among the multiple power source modules based on the target operating power of the medical devices when executing the target scanning protocol. The electrical energy stored in this target power source module is then used to power the medical devices. Essentially, the required capacity is determined each time the devices are actually used, and the matching power source module powers the medical devices, instead of relying on a large external power supply for a small portion of the capacity. This avoids wasting the power distribution capacity of the national power grid and allows for more rational use of the electrical energy in the power source modules. This reduces performance redundancy, lowers hardware construction costs, maximizes the service life of the energy storage units, and further maximizes and optimizes the use of site and equipment power distribution hardware resources.

[0250] It should be noted that the beneficial effects or technical problems solved by the embodiments of this application are not limited to this one, but may also be other implicit or related problems. For details, please refer to the description of the embodiments below.

[0251] The technical solution of this application and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0252] In an exemplary embodiment, as shown in FIG21, a power supply method for a medical device is provided. Taking the application of this method to the aforementioned medical device power distribution system as an example, the method includes the following steps 201 to 203. Wherein:

[0253] S201, Obtain the target operating power when the medical device executes the target scanning protocol.

[0254] When a medical device is about to execute a target scanning protocol to scan a target object, it needs to be supplied with corresponding electrical energy. At this time, the target operating power of the medical device when executing the target scanning protocol can be obtained, and the electrical energy corresponding to the target operating power can be supplied to the medical device to realize the power supply of the medical device.

[0255] For example, taking a CT scanner as an example, it executes a specific abdominal scanning protocol, which has a corresponding target operating power. The target operating power corresponding to the CT scanner executing this abdominal scanning protocol can be obtained, and then, based on this target operating power, matching electrical energy can be supplied to the CT scanner.

[0256] S202, Based on the target operating power, determine the target power source module from multiple different power source modules.

[0257] In this embodiment, the medical device power distribution system includes multiple different power source modules, including energy density power source modules and power density power source modules. Figure 22 shows a schematic diagram of the medical device power distribution system; Figure 23 shows a schematic diagram of the power density power source module; and Figure 24 shows a schematic diagram of the energy density power source module.

[0258] Energy density power source modules use electrochemical energy storage devices as energy storage elements, including lithium-based batteries, nickel-based batteries, sodium-based batteries, lead-acid batteries, and solid-state batteries. Power density power source modules, on the other hand, use electromagnetic energy storage devices as energy storage elements, including supercapacitors and superconducting magnetic energy storage devices. The lifespan of energy density power source modules is more sensitive to the severity of operating conditions.

[0259] Different power ranges correspond to different power source modules that can be used to power medical devices. Therefore, in one embodiment, determining the target power source module from a plurality of different power source modules based on the target operating power may include the following steps:

[0260] Step 1: If the target operating power meets the preset first power range or the preset second power range, then the power density type power source module is determined as the target power source module; the first power range is greater than the second power range.

[0261] In this embodiment, the first power range corresponds to the high power range, such as the ≥80kW range; the second power range corresponds to the low power range, such as the ≤30kW range. It should be noted that the high and low power ranges can be set according to actual application requirements. For example, the ≥30kW range could be considered the high power range, and the ≤5kW range the low power range. In this embodiment, the high and low power ranges are not limited.

[0262] When the target operating power is in the high power range, a power density power source module is selected to power the medical device. That is, when the target operating power of the medical device is high when executing the target scanning protocol, the power density power source module is used as the target power source module. Similarly, when the target operating power is in the low power range, the medical device is also powered by a power density power source module. That is, when the target operating power of the medical device is low when executing the target scanning protocol, the power density power source module is also used as the target power source module.

[0263] Step 2: If the target operating power meets the preset third power range, then the power density type power source module and the energy density type power source module are determined as the target power source modules; the third power range is greater than the second power range and less than the first power range.

[0264] In this embodiment of the application, the third power range is a medium power range, such as the range of 30 to 80 kW.

[0265] When the target operating power is within the medium power range, the medical device is powered by both the power density power source module and the energy density power source module. That is, when the target operating power of the medical device is medium power when executing the target scanning protocol, the power density power source module and the energy density power source module are used as the target power source module.

[0266] S203 supplies power to medical devices by controlling the release of electrical energy stored in the target power source module.

[0267] When the target operating power is in the high power range or the low power range, the power density type power source module is used as the target power source module. When powering medical equipment, the electrical energy corresponding to the target operating power can be delivered to the medical equipment by controlling the target power source module to complete the power supply to the medical equipment.

[0268] When the target operating power is in the medium power range, the power density power source module and the energy density power source module are used as the target power source modules. When the medical equipment needs to be powered, the high-frequency electrical energy corresponding to the target operating power can be delivered to the medical equipment by controlling the power density power source module, and the low-frequency electrical energy corresponding to the target operating power can be delivered to the medical equipment by controlling the energy density power source module, so as to complete the power supply to the medical equipment.

[0269] It should be noted that this application embodiment does not adopt the traditional method of directly obtaining high-power electricity from the three-phase grid to supply power to the CT during short periods of high power demand. Instead, it adopts a method of building a power source module into the medical equipment power distribution system, thereby significantly reducing the capacity requirement and dependence on the external grid. Traditional medical equipment requires 50-150kVA of grid capacity, while the method of this application embodiment only requires less than 50kVA of grid capacity. This has already reduced the pressure on the national grid and contributed to the reduction of total carbon emissions, because the national grid's front end requires fossil energy such as coal to generate electricity in order to ensure the operating power demand of various types of load equipment on the entire grid.

[0270] Furthermore, the embodiments of this application utilize energy density power source modules and energy storage devices such as power density power source modules, which significantly reduces the total operating cost of medical equipment at the user end, saving users (hospitals) considerable investment and usage costs. It also significantly reduces the capacity requirements and dependence of traditional medical equipment on external grid power, improving the operational stability and reliability of the medical equipment.

[0271] Furthermore, in this embodiment, energy density power source modules and power density power source modules are used for power supply, which allows for more rational use of the electrical energy of the energy density power source modules and power density power source modules, reduces performance redundancy, lowers hardware construction costs, and maximizes the service life of the power source modules. In other words, lithium batteries do not need to perform high-power and high-frequency discharge operations, which can significantly reduce damage to their internal electrochemical structures and achieve the maximum and most rational use of power supply and distribution hardware resources for the site and equipment.

[0272] The power supply method for medical devices provided in this application includes a power distribution system for the medical devices comprising multiple different power source modules. The method obtains the target operating power of the medical device when executing a target scanning protocol, and then determines the target power source module from the multiple different power source modules based on the target operating power. Finally, the method supplies power to the medical device by controlling the release of electrical energy stored in the target power source module. In this method, the power distribution system corresponding to the medical equipment is equipped with multiple different power source modules. Since the medical equipment has varying power requirements during actual operation, different power source modules should be selected to power the medical equipment for different power demands. Therefore, when power is needed for the medical equipment, the target power source module can be determined from among the multiple power source modules based on the target operating power when the medical equipment executes the target scanning protocol. The electrical energy stored in this target power source module is then used to power the medical equipment. Essentially, the required capacity for each actual operation is determined by the matched power source module, rather than relying on a large external power supply for a small portion of the capacity. This avoids wasting the power distribution capacity of the national grid and allows for more rational utilization of the power source module's electrical energy, reducing performance redundancy, lowering hardware construction costs, maximizing the service life of the energy storage unit, and further maximizing and rationally utilizing the power distribution hardware resources of the site and equipment.

[0273] When the target operating power meets the first power range, the medical device is powered by a power density-type power source module. Based on this, in an exemplary embodiment, as shown in FIG25, the medical device is powered by controlling the release of electrical energy stored in the target power source module, including:

[0274] S301, Adjust the DC bus voltage level of the power density type power source module to the preset first voltage level.

[0275] In this embodiment, the power density power source module has two voltage levels: a low voltage level (500V) and a high voltage level (1000V). When supplying power for different power ranges of operating conditions, the voltage level of the power density power source module needs to be adjusted to match the power range.

[0276] Since the target operating power in this embodiment meets the first power range (high power range), it is necessary to adjust the DC bus voltage level of the power density type power source module to a high voltage level, that is, the preset first voltage level is a high voltage level of 1000V.

[0277] For example, by controlling the power semiconductor switch in the power density power source module, the path between the first capacitor module and the second capacitor module in the power density power source module is opened, so as to achieve the adjustment of the first voltage level.

[0278] In this embodiment of the application, taking the high-power operation of CT equipment as an example, for scanning protocols with high power requirements, such as protocols of 80kW or more, high voltage and high current output are required to supply medical equipment. The duration is short (e.g., 120kW 5s), but the current pulse is large (e.g., peak value 220A) and carries a lot of high frequency components. Under this condition, the controller will intelligently adjust the DC bus voltage level to 1000Vdc.

[0279] Referring again to Figure 23, the first capacitor module is UC1 and the second capacitor module is UC2. The sub-controller controls the gate of the power semiconductor switch SU-P3 to be in the off state, and controls the gate of the power semiconductor switch SU-P2 to be switched to the on state. At this time, the two supercapacitor modules (UC1 and UC2) are in series, that is, the output voltage level becomes 1000Vdc.

[0280] At this time (see Figure 24), the energy density power source module is in a no-output mode, meaning that the sub-controller controls both power semiconductor switches SL-P1 and SL-P3 to be off. Therefore, when the terminal load of the medical device is applied, only the power density power source module provides 1000V voltage and 80-120A current.

[0281] S302 transmits electrical energy corresponding to the target operating power to the medical device by adjusting the gate drive voltage of the power semiconductor switch in the power density power source module, thereby completing the power supply to the medical device.

[0282] Referring to Figure 23, the sub-controller simultaneously collects the terminal voltage signal from both ends of the supercapacitor module and the current waveform signal from the loop (measured by the Shunt shunt sensor). The sub-controller employs current closed-loop control to adjust the on / off mode of the power semiconductor switch SU-P5, and in conjunction with the impedance adjustment of Rad2, realizes the discharge of the power density power source module, so as to transmit the electrical energy corresponding to the target operating power to the terminal load of the medical device.

[0283] Furthermore, after the CT scan, the SOC (State of Charge) and SOP (State of Power) status parameters of the power density power source module are uploaded by the sub-controller in the power density power source module to the controller of the medical equipment power distribution system for charging demand determination (e.g., SOC less than 80%). If the power density power source module needs to be charged to prepare for the next CT scan protocol discharge, the controller will issue an operation command to the DC-DC converter, which will draw power (500V) from the power density power source module at a power of, for example, 20kW, and boost the voltage to 1000V to charge the power density power source module. The DC-DC converter is a converter that converts medium-voltage DC to high-voltage DC. When charging the power density module, the DC-DC converter converts the input medium-voltage DC to high-voltage DC to deliver the high-voltage DC to the power density power source module for charging. Additionally, Figure 23 also includes an AC-DC converter, which converts alternating current (AC) into medium-voltage direct current (DC). When the energy density power source module is charged by an external power source, the AC-DC converter can convert the AC input from the external power source into medium-voltage DC to supply the medium-voltage DC to the energy density power source module for charging.

[0284] Under this operating condition, the controller will intelligently adjust the DC bus voltage level to 1000Vdc, and the current pulse will reduce the requirements of the original cable (current carrying capacity corresponds to cable cost control), and the radiated magnetic field will be effectively reduced (smaller current di / dt, reducing external magnetic field radiation during current surge).

[0285] The power supply method for medical devices provided in this application adjusts the DC bus voltage level of a power density power source module to a preset first voltage level, and then adjusts the gate drive voltage of the power semiconductor switch in the power density power source module to transfer electrical energy corresponding to the target operating power to the medical device, thereby powering the medical device. This method also provides an optional power supply mode for the medical device: when the operating power is in a high power range, the DC bus voltage level of the power density power source module is adjusted to a high voltage level, and then the power semiconductor switch in the power density power source module is adjusted to discharge the power density power source module, thus transferring electrical energy corresponding to the operating power to the medical device and achieving rapid power supply to the medical device.

[0286] When the operating power meets the second power range, the medical device is also powered by a power density-type power source module. Based on this, in an exemplary embodiment, as shown in Figure 26, controlling the release of electrical energy stored in the target power source module to power the medical device includes:

[0287] S401, adjust the DC bus voltage level of the power density type power source module to the preset second voltage level.

[0288] In this embodiment, the second voltage level is lower than the first voltage level.

[0289] Since the target operating power in this embodiment meets the second power range (low power range), it is necessary to adjust the DC bus voltage level of the power density type power source module to a low voltage level, that is, the preset second voltage level is a low voltage level of 500V.

[0290] For example, by controlling the power semiconductor switch in the power density power source module, the path between the first capacitor module and the second capacitor module in the power density power source module is disconnected, so as to achieve the adjustment of the second voltage level.

[0291] In this embodiment of the application, taking the low-power operation of the CT equipment as an example, for scanning protocols with low power requirements, such as protocols with less than or equal to 30kW, the controller will intelligently adjust the DC bus voltage level to 500Vdc and provide it solely from the power density power source module. That is, during the terminal load loading of the medical equipment, the power does not come from the power density power source module, but is provided by the power density power source module discharging.

[0292] Referring to Figure 23, in order to make the output voltage of the power density power source module reach the 500Vdc level, the sub-controller will disconnect the UC1 capacitor module through the power semiconductor switch SU-P2 and turn on the power semiconductor switch SU-P3, thereby adjusting the external voltage of the power density power source module to 500Vdc.

[0293] S402 transmits electrical energy corresponding to the target operating power to the medical device by adjusting the gate drive voltage of the power semiconductor switch in the power density power source module, thereby completing the power supply to the medical device.

[0294] Referring to Figure 23, the sub-controller controls SU-P1 to disconnect, controls Rad2 to coarsely adjust the output current, and controls SU-P4 to conduct and specifically controls the switch of SU-P5 to be in a high-speed adjustment on / off state to achieve fine adjustment of the output current.

[0295] To achieve precise and rapid control of the output power and current of the power density power source module, the sub-controller simultaneously collects the terminal voltage signal from both ends of the supercapacitor module and the current waveform signal from the loop (measured by the Shunt shunt sensor). The sub-controller employs current closed-loop control, adjusting the on / off mode of SU-P5, and in conjunction with the impedance adjustment of Rad2, to achieve the discharge of the power density power source module, so as to transmit the electrical energy corresponding to the operating power to the terminal load of the medical device.

[0296] Under this operating condition, it is beneficial to maximize the service life of energy density power source modules and improve the overall performance and lifespan of medical equipment power distribution systems.

[0297] The power supply method for medical devices provided in this application adjusts the DC bus voltage level of the power density power source module to a preset second voltage level; the second voltage level is lower than the first voltage level; by adjusting the gate drive voltage of the power semiconductor switch in the power density power source module, the electrical energy corresponding to the target operating power is transferred to the medical device to power the medical device. This method also provides another optional way to power the medical device: when the operating power is in a low power range, the DC bus voltage level of the power density power source module is adjusted to a low voltage level, and then the power semiconductor switch in the power density power source module is adjusted to discharge the power density power source module, thereby transferring the electrical energy corresponding to the target operating power to the medical device and achieving rapid power supply to the medical device.

[0298] When the target operating power meets the third power range, the medical device is powered simultaneously by both a power density power source module and an energy density power source module. Based on this, in an exemplary embodiment, as shown in FIG27, the medical device is powered by controlling the release of electrical energy stored in the target power source module, including:

[0299] S501, adjust the DC bus voltage level of the power density type power source module to the preset second voltage level.

[0300] When the target operating power is in the medium power range, the high-frequency current can be transmitted by the power density type power source module. At this time, the DC bus voltage level of the power density type power source module needs to be adjusted to the low voltage level.

[0301] S502, obtain the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve corresponding to the target operating power.

[0302] For example, the expected current waveform corresponding to the target operating power is obtained, and then the expected current waveform is decomposed to obtain the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve.

[0303] In this embodiment, the controller can predict the scanning task to be performed based on the next scanning device parameters (such as kV, mA, scanning cycle number corresponding to the duration in seconds) in the console user interface, and then calculate the power curve and current curve of the expected high-frequency transient component curve and the expected low-frequency transient component curve corresponding to the target operating power, that is, the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve.

[0304] For example, the console user interface sets the scanning device parameters for the next scanning task, and then obtains the target operating power based on the set scanning device parameters. This leads to the acquisition of the corresponding power curve (Ptotal), voltage curve (Utotal), and current curve (Itotal), as shown in Figure 28. Here, Pmax = 75KW (maximum power), Iavg = 140A (average current), and Ipk = 160A (peak current).

[0305] Furthermore, data analysis and waveform transformation decomposition are performed on the power curve, voltage curve, and current curve to obtain the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve. As shown in Figure 29, IUC is the expected high-frequency transient component demand curve corresponding to the high-frequency transient component allocated to the power density power source module, and Ibattery is the expected low-frequency transient component demand curve corresponding to the low-frequency transient component allocated to the energy density power source module.

[0306] S503 adjusts the gate drive voltage of the power semiconductor switch in the power density power source module according to the expected high-frequency transient component demand curve, and adjusts the gate drive voltage of the power semiconductor switch in the energy density power source module according to the expected low-frequency transient component demand curve, so as to transfer the electrical energy corresponding to the target operating power to the medical device to complete the power supply to the medical device.

[0307] For example, the discharge current waveform collected by the current acquisition device in the power density power source module is obtained; the gate drive voltage of the power semiconductor switch is adjusted according to the discharge current waveform and the expected high-frequency transient component demand curve.

[0308] As shown in Figure 23, the shunt current collector is a current acquisition unit that can acquire current signals and obtain discharge current waveforms. When it is necessary to adjust the gate drive voltage of the power semiconductor switch, a current waveform acquisition request can be sent to the current acquisition unit in the power density power source module. Upon receiving the request, the current acquisition unit will monitor the acquired discharge current signal in real time and generate a discharge current waveform. After acquiring the discharge current waveform acquired by the current acquisition unit, the discharge current waveform and the expected high-frequency transient component demand curve can be analyzed according to a preset analysis strategy to determine the adjustment range of the gate drive voltage of the power semiconductor switch. The gate drive voltage of the power semiconductor switch can then be adjusted according to this adjustment range.

[0309] Referring to Figure 23, the sub-controller monitors the terminal voltage signal and current waveform signal of the supercapacitor module in real time. This allows the sub-controller to obtain the discharge current waveform and voltage change curve of the supercapacitor module in real time. Then, the sub-controller compares the discharge current waveform and voltage change curve with the expected high-frequency transient component demand curve and performs closed-loop control. By continuously adjusting SU-P5 in real time, in conjunction with the impedance adjustment of Rad2, all the current of the high-frequency transient component is transmitted to the terminal load of the medical device.

[0310] Similarly, for the low-frequency transient components, referring to Figure 24, the sub-controller monitors the terminal voltage and conduction current of the lithium battery module in real time. This allows the sub-controller to acquire the discharge current waveform and module voltage change curve of the lithium battery in real time, and then uses a current closed-loop control method to finely regulate the gate drive voltages of SL-P2, SL-P3, and SL-N1. Rad1 is a power-stage digital rheostat that, under the command of the sub-controller, can coarsely regulate the discharge of the lithium battery module according to current levels until all the current of the low-frequency transient components is transmitted to the terminal load of the medical device.

[0311] In this embodiment, when the medical device is under medium power demand, it needs to output both the energy density power source module and the power density power source module. At this time, the voltage level of the latter will be adjusted to 500V, which is consistent with the voltage of the energy density power source module. After unifying the DC bus voltage, they will distribute their current and power (such as high frequency and low frequency) and output. After mixing the energy to the 500V DC bus, they will supply power to the CT.

[0312] The energy density power source module provides low-frequency steady-state current to the 500V DC bus, while the power density power source module provides high-frequency transient current. The combined components of these two frequencies and amplitudes constitute the power required for the CT equipment's terminal load. Output response speed, energy level, and voltage stability are all guaranteed, maximizing the advantages of both power source types. This allows for cost-minimizing of energy storage components, effectively reducing EMI radiation (lower current amplitude and di / dt), and optimizing the lifespan of the energy storage components in both power source modules under actual operating conditions. This comprehensively reduces the cost of CT equipment components and the total product lifecycle cost for customers.

[0313] The method for powering medical devices provided in this application involves adjusting the DC bus voltage level of a power density power source module to a preset first voltage level; acquiring the high-frequency transient component and low-frequency transient component corresponding to the operating power; adjusting the gate drive voltage of the power semiconductor switch in the power density power source module according to the high-frequency transient component, and adjusting the gate drive voltage of the power semiconductor switch in the energy density power source module according to the low-frequency transient component, thereby transferring the electrical energy corresponding to the operating power to the medical device to power it. This method also provides another optional way to power medical devices: by adjusting the DC bus voltage level of the power density power source module to a high voltage level, the high-frequency transient component corresponding to the operating power can be allocated to the power density power source module, and the low-frequency transient component to the energy density power source module, thereby transferring the electrical energy corresponding to the operating power to the medical device and achieving rapid power supply to the medical device.

[0314] When the state of charge of the power density power source module is less than a preset threshold, the power density power source module needs to be charged. Based on this, in an exemplary embodiment, as shown in Figure 30, the method further includes:

[0315] S601, obtain the state of charge of the power density power source module.

[0316] S602, if the state of charge is less than the preset threshold, the power density power source module is charged through the energy density power source module.

[0317] For example, a power replenishment command is sent to the energy density power source module; the power replenishment command includes a target power quantity; the current of the target power quantity is boosted by the DC-DC converter in the medical equipment power distribution system, and the boosted current is sent to the power density power source module to complete the charging of the power density power source module.

[0318] When the power density power source module discharges, and its State of Charge (SOC) drops to a preset threshold (e.g., 80%), the controller performs energy dispatch control to execute a rapid charging operation (e.g., 20kW, 20A, to fully charge the power density power source module to 100% in 1 minute). Specifically, referring to Figure 22, one pair of power ports (e.g., medium-voltage side ports) of the DC-DC converter are connected to the energy density power source module, and the other pair of power ports of the DC-DC converter are also connected to the power density power source module.

[0319] The power supply method for medical devices provided in this application involves acquiring the state of charge (SOC) of a power density power source module. If the SOC is less than a preset threshold, the power density power source module is charged using an energy density power source module. In this method, when the SOC of the power density power source module decreases to a certain value after discharging, it needs to be charged using an energy density power source module to provide power support for the next scan protocol's discharge.

[0320] In an exemplary embodiment, when the rotor corresponding to the medical device is detected to enter a deceleration state, the kinetic energy of the rotor is converted into electrical energy and transmitted through the main motor unit in the power distribution system of the medical device to the high-voltage side of the DC-DC converter in the power distribution system of the medical device, so as to recover the converted electrical energy to the power density type power source module.

[0321] Referring again to Figure 22, the main motor unit and stator-side loads (multiple loads) are powered from the grid when the CT is connected to an external power supply cable. Below the main motor unit, there is a pair of 'regenerative DC output lines' (dashed lines). When the CT rotor enters the deceleration state, a reverse induced electromotive force is generated on the DC bus inside the inverter driver of the main motor unit, causing a rise in bus voltage (e.g., from 530V to 800V). At this time, the rotor kinetic energy is converted into electrical energy, which can be transmitted to the high-voltage side of the DC-DC converter through the 'regenerative DC output lines' (dashed lines on the right) below the main motor unit and two N-type MOSFETs (S-N4 and S-N5). Under the control of the controller, the power switch S-N5 is in the conducting state, and the current flows downward through the body diode of S-N4 to the high-voltage input terminal of the DC-DC converter.

[0322] In an exemplary embodiment, when the power distribution system of the medical device is detected to be in off-grid energy storage mode, the power density power source module is controlled to supply power to the main motor unit in the power distribution system of the medical device, and the energy density power source module is controlled to supply power to the stator-side load in the power distribution system of the medical device.

[0323] Referring to Figure 22, after the off-grid mode is activated or the external power supply fails, the stator-side loads (multiple loads) can no longer receive power from the grid. Seamlessly and quickly, the controller will control the P-type MOSFET S-P1 to turn on rapidly, and then the energy density power source module will provide power to the stator-side loads. Similarly, for the main motor unit, the controller will control the N-type MOSFET S-N4 to turn on rapidly immediately after the grid power supply is activated, and the body diode of S-N5 will provide the circuit conduction condition. Then, the power density power source module will provide power to the main motor unit. If medical equipment operates in off-grid mode, it can also achieve peak-shifting power consumption, thereby saving electricity costs, reducing pressure on the national grid, and lowering carbon emissions in the overall carbon footprint.

[0324] In an exemplary embodiment, when the load device is detected to be in a standby state, the power density power source module and the energy density power source module are disconnected from the DC bus, and the external power supply in the medical device power distribution system is controlled to supply power to the load device.

[0325] Referring to Figure 22, when the CT enters the no-external-power-supply mode, it will seamlessly switch to the 'internal power supply' mode. At this time, the various loads on the stator side and the main motor unit, which were originally powered by external power, are switched to be powered by the two internal power source modules through the rapid switching of MOSFETs (the stator side loads are powered by the energy density type power source module, and the main motor unit has a medium power density requirement, so it is powered by the power density type power source module).

[0326] When the CT is in a no-external-power-supply mode, all power levels required by the main load circuit can be supplied independently by the power density power source module or by a combination / joint supply of the power density power source module and the energy density power source module through a 'power splitting method'. Under the condition of joint output from both power source modules, the DC bus voltage is at the 500V level (in practice, it is in the 400-500Vdc range), and the energy density power source module performs 'active balancing' discharge for the power density power source module through a DC-DC converter to maintain DC bus voltage stability (preventing potential risks such as insufficient power supply or poor power quality in the CT main circuit due to voltage drops in the discharge voltage of the internal single supercapacitor module when using a 500V power density power source module).

[0327] The energy supply method for medical devices provided in this application converts the kinetic energy of the rotor into electrical energy when the rotor corresponding to the load device is detected to enter a deceleration state. This electrical energy is then transmitted to the high-voltage side of the DC-DC converter in the medical device's power distribution system via the main motor unit, allowing the converted electrical energy to be recovered to the power density power source module. When the medical device's power distribution system is detected to be in off-grid energy storage mode, the power density power source module is controlled to supply power to the main motor unit, and the energy density power source module is controlled to supply power to the stator-side load. When the load device is detected to be in standby mode, the power density power source module and the energy density power source module are disconnected from the DC bus, and an external power source in the medical device's power distribution system is controlled to supply power to the medical device. This provides a kinetic energy regeneration method during rotor deceleration, an off-grid energy storage mode power supply method, and a standby power supply method for the medical device, improving the energy supply efficiency and performance of the medical device's power distribution system.

[0328] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0329] Based on the same inventive concept, this application also provides a power supply device for implementing the power supply method described above. The solution provided by this device is similar to the solution described in the above method; therefore, specific limitations in one or more power supply device embodiments provided below can be found in the limitations of the power supply method described above, and will not be repeated here.

[0330] In an exemplary embodiment, as shown in FIG31, a power supply device 31 for a medical device is provided, comprising: an acquisition module 310, a determination module 320, and a power supply module 330, wherein:

[0331] The acquisition module 310 is used to acquire the target operating power of the medical device when executing the target scanning protocol;

[0332] The determination module 320 is used to determine the target power source module from multiple different power source modules based on the target operating power;

[0333] The power supply module 330 is used to power medical devices by controlling the release of electrical energy stored in the target power source module.

[0334] In one embodiment, the power source module includes a power density power source module and an energy density power source module, and the determining module 320 is further configured to:

[0335] If the target operating power meets the preset first power range or the preset second power range, then the power density type power source module is determined as the target power source module; the first power range is greater than the second power range. If the operating power meets the preset third power range, then the power density type power source module and the energy density type power source module are determined as the target power source modules; the third power range is greater than the second power range and less than the first power range.

[0336] In one embodiment, the power supply module 330 is further configured to:

[0337] Adjust the DC bus voltage level of the power density power source module to the preset first voltage level; by adjusting the gate drive voltage of the power semiconductor switch in the power density power source module, the electrical energy corresponding to the target operating power is transferred to the medical device to complete the power supply to the medical device.

[0338] In one embodiment, the power supply module 330 is further configured to:

[0339] By controlling the power semiconductor switch in the power density power source module, the path between the first capacitor module and the second capacitor module in the power density power source module is opened, so as to achieve the adjustment of the first voltage level.

[0340] In one embodiment, the power supply module 330 is further configured to:

[0341] The DC bus voltage level of the power density power source module is adjusted to the preset second voltage level; the second voltage level is lower than the first voltage level; by adjusting the gate drive voltage of the power semiconductor switch in the power density power source module, the electrical energy corresponding to the target operating power is transferred to the medical device to complete the power supply to the medical device.

[0342] In one embodiment, the power supply module 330 is further configured to:

[0343] By controlling the power semiconductor switch in the power density power source module, the path between the first capacitor module and the second capacitor module in the power density power source module is disconnected, thereby achieving the adjustment of the second voltage level.

[0344] In one embodiment, the power supply module 330 is further configured to:

[0345] The DC bus voltage level of the power density power source module is adjusted to the preset second voltage level; the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve corresponding to the target operating power are obtained; the gate drive voltage of the power semiconductor switch in the power density power source module is adjusted according to the expected high-frequency transient component demand curve, and the gate drive voltage of the power semiconductor switch in the energy density power source module is adjusted according to the expected low-frequency transient component demand curve, so as to transfer the electrical energy corresponding to the target operating power to the medical device to complete the power supply to the medical device.

[0346] In one embodiment, the power supply module 330 is further configured to:

[0347] Obtain the expected current waveform corresponding to the target operating power; decompose the expected current waveform to obtain the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve.

[0348] In one embodiment, the power supply module 330 is further configured to:

[0349] Obtain the discharge current waveform collected by the current acquisition device in the power density power source module; adjust the gate drive voltage of the power semiconductor switch according to the discharge current waveform and the expected high-frequency transient component demand curve.

[0350] Each module in the aforementioned power supply device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0351] The medical power supply and distribution management method and the power supply method for medical devices provided in this application embodiment can also be applied to computer devices. The computer device can be a controller in a medical device power distribution system, and its internal structure diagram is shown in Figure 32. The computer device includes a processor, memory, input / output interfaces (I / O), and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is connected to the system bus via the I / O interfaces. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer device stores data. The I / O interfaces of the computer device are used for exchanging information between the processor and external devices. The communication interface of the computer device is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a power supply method for a medical device. Those skilled in the art will understand that the structure shown in Figure 32 is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0352] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in any of the above method embodiments.

[0353] The implementation principles and technical effects of each step in the processor embodiment of this application are similar to those of the above-described methods, and will not be repeated here.

[0354] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps in any of the above method embodiments.

[0355] The implementation principles and technical effects of each step in the computer program executed by the processor in this embodiment are similar to those of the methods described above, and will not be repeated here.

[0356] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in any of the above method embodiments.

[0357] The implementation principles and technical effects of each step in the computer program executed by the processor in this embodiment are similar to those of the methods described above, and will not be repeated here.

[0358] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0359] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0360] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A medical power distribution system, comprising: An energy storage system, an energy scheduling control system and a plurality of medical scanning systems, wherein the energy storage system is connected with each of the medical scanning systems for obtaining and storing electric energy; the energy scheduling control system is connected with the energy storage system and each of the medical scanning systems for controlling the energy storage system to supply electric energy to a medical scanning system to be operated.

2. The power supply and distribution system according to claim 1, wherein each of the medical scanning systems comprises a main load device, the main load device and the energy storage system form a main load loop, one end of the energy storage system is connected with a power supply system, and the other end of the energy storage system is connected with the main load device; the main load device is supplied with electric energy by the energy storage system.

3. The power supply and distribution system according to claim 1, wherein the energy storage system comprises an energy density type energy storage subsystem or a power density type energy storage subsystem, one end of the energy density type energy storage subsystem or the power density type energy storage subsystem is connected with a power supply system, and the other end of the energy density type energy storage subsystem or the power density type energy storage subsystem is connected with each of the medical scanning systems respectively; the energy scheduling control system is connected with the energy density type energy storage subsystem or the power density type energy storage subsystem; the energy density type energy storage subsystem or the power density type energy storage subsystem is used for obtaining and storing electric energy from the power supply system; the energy scheduling control system is used for controlling the energy density type energy storage subsystem or the power density type energy storage subsystem to supply electric energy to the medical scanning system to be operated.

4. The power supply and distribution system according to claim 1, wherein the energy storage system comprises at least two levels of energy storage subsystems, one end of a first level of energy storage subsystem is connected with the power supply system, the other end of the first level of energy storage subsystem is connected with one end of a second level of energy storage subsystem, the other end of the second level of energy storage subsystem is connected with each of the medical scanning systems respectively; the energy scheduling control system is connected with the first level of energy storage subsystem and the second level of energy storage subsystem respectively; the first level of energy storage subsystem is used for obtaining and storing electric energy from the power supply system; the second level of energy storage subsystem is used for obtaining and storing electric energy from the first level of energy storage subsystem; the energy scheduling control system is used for controlling the second level of energy storage subsystem to supply electric energy to the medical scanning system to be operated.

5. The power supply and distribution system according to claim 4, wherein the first level of energy storage subsystem is configured to realize bidirectional flow of energy with the second level of energy storage subsystem, and the second level of energy storage subsystem is configured to realize bidirectional flow of energy with each of the medical scanning systems. 6.The power supply system of claim 4, wherein the first energy storage subsystem comprises at least one energy density energy storage subsystem, the second energy storage subsystem comprises at least one power density energy storage subsystem, one end of the at least one energy density energy storage subsystem is connected to the energy supply system, the other end of the at least one energy density energy storage subsystem is connected to one end of the at least one power density energy storage subsystem, the other end of the at least one power density energy storage subsystem is connected to each of the medical scanning systems respectively, and the energy scheduling control system is connected to the at least one energy density energy storage subsystem and the at least one power density energy storage subsystem respectively; the at least one energy density energy storage subsystem is configured to obtain and store electric energy from the energy supply system; the at least one power density energy storage subsystem is configured to obtain and store electric energy from the at least one energy density energy storage subsystem; the energy scheduling control system is configured to control the at least one power density energy storage subsystem to supply electric energy to the medical scanning system to be operated. 7.The power supply system of claim 6, wherein the energy scheduling control system is configured to determine the operating electric energy required by the medical scanning system to be operated, and determine whether the total electric energy of the power density energy storage subsystem connected to the medical scanning system to be operated is greater than or equal to the operating electric energy required by the medical scanning system to be operated; if yes, control the power density energy storage subsystem connected to the medical scanning system to be operated to supply electric energy to the medical scanning system to be operated; if no, control the at least one energy density energy storage subsystem to charge the power density energy storage subsystem connected to the medical scanning system to be operated, and control the power density energy storage subsystem connected to the medical scanning system to be operated to supply electric energy to the medical scanning system to be operated when the total electric energy of the power density energy storage subsystem connected to the medical scanning system to be operated is greater than or equal to the operating electric energy required by the medical scanning system to be operated. 8.The power supply system of claim 7, wherein the energy scheduling control system is further configured to control a first target power density energy storage subsystem to charge the power density energy storage subsystem connected to the medical scanning system to be operated when the total electric energy of the power density energy storage subsystem connected to the medical scanning system to be operated is less than the operating electric energy required by the medical scanning system to be operated; wherein the first target power density energy storage subsystem is a power density energy storage subsystem other than the power density energy storage subsystem connected to the medical scanning system to be operated and having a current electric energy greater than a preset electric energy threshold. 9.The power supply system of claim 6, wherein if the plurality of medical scanning systems connected to the at least one power density energy storage subsystem are all medical scanning systems to be operated, the energy scheduling control system is further configured to determine the operating electric energy required by each of the medical scanning systems to be operated. ​ The energy scheduling control system is further configured to control the at least one power density energy storage subsystem to supply power to each of the to-be-operated medical scanning systems when it is determined that the total power of the at least one power density energy storage subsystem is greater than or equal to the sum of the operating power required by each of the to-be-operated medical scanning systems.

10. The power supply and distribution system of claim 9, wherein The energy scheduling control system is further configured to control the at least one power density energy storage subsystem to supply power to each of the to-be-operated medical scanning systems in sequence according to the priority of each of the to-be-operated medical scanning systems when it is determined that the total power of the at least one power density energy storage subsystem is less than the sum of the operating power required by each of the to-be-operated medical scanning systems; The energy scheduling control system is further configured to control the at least one energy density energy storage subsystem to charge the at least one power density energy storage subsystem after the power supply of the previous to-be-operated medical scanning system ends, and control the at least one power density energy storage subsystem to supply power to the next to-be-operated medical scanning system after the charging ends.

11. The power supply and distribution system of claim 9, wherein The energy scheduling control system is further configured to control the at least one energy density energy storage subsystem to charge the at least one power density energy storage subsystem when it is determined that the total power of the at least one power density energy storage subsystem is less than the sum of the operating power required by each of the to-be-operated medical scanning systems, and control the at least one power density energy storage subsystem to supply power to each of the to-be-operated medical scanning systems when the total power of the at least one power density energy storage subsystem is greater than or equal to the sum of the operating power required by each of the to-be-operated medical scanning systems.

12. The power supply and distribution system of claim 6, wherein The energy scheduling control system is further configured to control a second target power density energy storage subsystem to charge the at least one energy density energy storage subsystem when it is monitored that the at least one energy density energy storage subsystem is in a power shortage state; the current power of the second target power density energy storage subsystem is greater than a preset power threshold.

13. The power supply and distribution system of claim 6, wherein the other end of the at least one energy density energy storage subsystem is further connected with each of the medical scanning systems respectively; The energy scheduling control system is further configured to control the at least one energy density energy storage subsystem to supply power to a target medical scanning system in a standby state among all the medical scanning systems, and control the at least one power density energy storage subsystem to suspend the power supply to the target medical scanning system when it is monitored that there is a target medical scanning system in a standby state among all the medical scanning systems.

14. The power supply and distribution system of claim 2, wherein each medical scanning system further comprises an auxiliary load device connected with the energy supply system or the energy storage system; The auxiliary load device is supplied with power by the energy supply system when the energy supply system is in an available state; The auxiliary load device is powered by the energy storage system when the energy supply system is in an unavailable state.

15. The power supply and distribution system of claim 2, wherein the energy storage system comprises a first DC power source module, a second DC power source module, a first energy converter, and a second energy converter; one end of the first DC power source module is connected to the first energy converter, and the other end of the first DC power source module is connected to the second energy converter; the first energy converter is further connected to the energy supply system; one end of the second DC power source module is connected to the second energy converter, and the other end of the second DC power source module is connected to the main load device in the main load circuit; the first energy converter is configured to convert AC power into medium voltage DC power; and the second energy converter is configured to convert medium voltage DC power into high voltage DC power. The first DC power source module is an energy density type power source module, and the second DC power source module is a power density type power source module.

16. The power supply and distribution system of claim 15, wherein the DC bus voltage level of the second DC power source module comprises a first voltage level and a second voltage level, the second voltage level being lower than the first voltage level.

17. The power supply and distribution system of claim 2, wherein the energy storage system comprises a first energy converter, a second energy converter, and a second DC power source module; one end of the first energy converter is connected to the energy supply system, and the other end of the first energy converter is connected to the second energy converter; one end of the second DC power source module is connected to the second energy converter, and the other end of the second DC power source is connected to the main load device in the main load circuit.

18. The power supply and distribution system of claim 1, wherein the energy storage system comprises a flywheel energy storage unit, a first power supply and distribution unit, and a second power supply and distribution unit; a first end of the first power supply and distribution unit is connected to the energy supply system, a second end of the first power supply and distribution unit is connected to the flywheel energy storage unit, a third end of the first power supply and distribution unit is connected to a first end of the second power supply and distribution unit, and a second end of the second power supply and distribution unit is connected to each of the medical scanning systems; and the energy scheduling and control system is connected to the first power supply and distribution unit. The first power supply and distribution unit is configured to obtain electrical energy from the energy supply system and charge the flywheel energy storage unit. The energy scheduling and control system is configured to control the first power supply and distribution unit to obtain electrical energy from the flywheel energy storage unit and output to the second power supply and distribution unit, so as to instruct the second power supply and distribution unit to supply power to the medical scanning system to be operated.

19. The power supply and distribution system of claim 18, wherein The energy scheduling and control system is further configured to, when it is monitored that all the medical scanning systems are in standby state, control the first power supply and distribution unit to obtain electrical energy from the energy supply system and output to the second power supply and distribution unit, so as to instruct the second power supply and distribution unit to supply power to each of the medical scanning systems.

20. The power supply and distribution system of any one of claims 1 to 19, wherein The energy storage system is further configured to recover and store electrical energy from the medical scanning system to be operated.

21. The power supply and distribution system of claim 1, wherein the switching element in the power supply and distribution system is an electronic switch.

22. The power distribution system of any one of claims 1 to 19, wherein the power distribution system further comprises: The energy storage system is further connected to an energy supply system; the energy supply system comprises at least one of a grid power distribution system, an energy harvesting system, and the medical scanning system; The energy harvesting system is configured to harvest clean energy and / or renewable energy. The energy storage system is configured to obtain and store electrical energy from the grid power distribution system. and / or, obtain and store electrical energy from the energy harvesting system. and / or, recover and store electrical energy from the medical scanning system to be operated.

23. A medical device power distribution system, comprising a main load circuit and an external power source; the main load circuit comprises a main load device, and the main load circuit further comprises an energy storage system, one end of the energy storage system is connected to the external power source, and the other end of the energy storage system is connected to the main load device. The main load device is powered by the energy storage system.

24. A medical device, comprising the medical device power distribution system of claim 23.

25. A medical power supply and distribution management method, applied to the power supply and distribution system of any one of claims 1 to 22, the method comprising: obtaining the operating state of each medical scanning system to determine the medical scanning system to be operated; controlling the energy storage system to supply power to the medical scanning system to be operated.

26. The method of claim 25, wherein the power distribution system further comprises: The energy storage system is further connected to an energy supply system; The energy supply system comprises at least one of a grid power distribution system, an energy harvesting system, and the medical scanning system, and the method further comprises: obtaining the state of the grid power distribution system; in response to the state of the grid power distribution system satisfying a preset state, switching the state of the energy storage system to an off-grid state; in the off-grid state, the energy storage system is configured to obtain electrical energy from the energy harvesting system and / or the medical scanning system, and supply power to the medical scanning system to be operated.

27. The method of claim 26, wherein the method further comprises: obtaining the electrical energy of the energy storage system; in a case where it is determined that the electrical energy of the energy storage system is lower than a first preset electrical energy threshold, outputting an alarm information; in a case where it is determined that the electrical energy of the energy storage system is lower than a second preset electrical energy threshold, switching the state of the energy storage system to a low-power-consumption state; in the low-power-consumption state, the energy storage system stops supplying power to the medical scanning system to be operated; the second preset electrical energy threshold is lower than the first preset electrical energy threshold.

28. The method of claim 25, wherein the energy storage system comprises a plurality of different power source modules, and the method further comprises: obtaining a target operating power when the medical scanning system to be operated executes a target scanning protocol; determining a target power source module from the plurality of different power source modules according to the target operating power; controlling the release of the amount of electrical energy stored in the target power source module to supply power to the medical scanning system to be operated.

29. The method of claim 28, wherein the power source modules comprise an energy density type power source module and a power density type power source module; and wherein determining the target power source module from the target operating power among the plurality of different power source modules comprises: if the target operating power meets a preset first power range or a preset second power range, determining the power density type power source module as the target power source module; the first power range being greater than the second power range; if the target operating power meets a preset third power range, determining the power density type power source module and the energy density type power source module as the target power source module; the third power range being greater than the second power range and less than the first power range.

30. The method of claim 29, wherein the target operating power satisfies the first power range; the target power source module is a power density type power source module. wherein supplying the medical scanning system to be operated with power comprises: adjusting a direct current bus voltage level of the power density type power source module to a preset first voltage level; transferring the target operating power corresponding electrical energy to the medical scanning system to be operated by adjusting a gate drive voltage of a power semiconductor switch in the power density type power source module to complete the power supply to the medical scanning system to be operated.

31. The method of claim 30, wherein adjusting the direct current bus voltage level of the power density type power source module to a preset first voltage level comprises: opening a path between a first capacitor module and a second capacitor module in the power density type power source module by controlling the power semiconductor switch in the power density type power source module to achieve the adjustment of the first voltage level.

32. The method of claim 29, wherein the target operating power satisfies the second power range; the target energy storage module is a power density power source module. wherein supplying the medical scanning system to be operated with power comprises: adjusting a direct current bus voltage level of the power density type power source module to a preset second voltage level; the second voltage level being lower than the first voltage level; transferring the target operating power corresponding electrical energy to the medical scanning system to be operated by adjusting a gate drive voltage of a power semiconductor switch in the power density type power source module to complete the power supply to the medical scanning system to be operated.

33. The method of claim 32, wherein adjusting the direct current bus voltage level of the power density type power source module to a preset second voltage level comprises: disconnecting a path between a first capacitor module and a second capacitor module in the power density type power source module by controlling the power semiconductor switch in the power density type power source module to achieve the adjustment of the second voltage level.

34. The method of claim 29, wherein the target operating power satisfies the third power range; the target power source module is the power density type power source module and the energy density type power source module; wherein supplying the medical scanning system to be operated with power comprises: adjusting a direct current bus voltage level of the power density type power source module to a preset second voltage level; obtaining an expected high frequency transient component demand curve and an expected low frequency transient component demand curve corresponding to the target operating power; and transferring the target operating power corresponding electrical energy to the medical scanning system to be operated by adjusting a gate drive voltage of a power semiconductor switch in the power density type power source module to complete the power supply to the medical scanning system to be operated. According to the expected high-frequency transient component demand curve, the gate drive voltage of the power semiconductor switch in the power density type power source module is adjusted, and according to the expected low-frequency transient component demand curve, the gate drive voltage of the power semiconductor switch in the energy density type power source module is adjusted, and the target operating power corresponding to the electric energy is transmitted to the medical scanning system to be operated to complete the energy supply of the medical scanning system to be operated.

35. The method of claim 34, wherein the obtaining the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve corresponding to the target operating power comprises: obtaining an expected current waveform corresponding to the target operating power; performing waveform decomposition on the expected current waveform to obtain the expected high-frequency transient component demand curve and the expected low-frequency transient component demand curve.

36. The method of claim 35, wherein the adjusting the gate drive voltage of the power semiconductor switch in the power density type power source module according to the expected high-frequency transient component demand curve comprises: obtaining a discharge current waveform collected by a current collector in the power density type power source module; adjusting the gate drive voltage of the power semiconductor switch according to the discharge current waveform and the expected high-frequency transient component demand curve.

37. An energy supply method of a medical device, applied to a medical device power distribution system, the medical device power distribution system comprising a plurality of different power source modules, the method comprising: obtaining a target operating power of the medical device when executing a target scanning protocol; determining a target power source module from the plurality of different power source modules according to the target operating power; supplying energy to the medical device by controlling the release of stored electric energy in the target power source module.

38. A medical energy supply and distribution management device, applied to the energy supply and distribution system of any one of claims 1 to 22, the device comprising: an obtaining module configured to obtain the working state of each medical scanning system and determine a medical scanning system to be operated; an energy supply module configured to control the energy storage system to supply power to the medical scanning system to be operated.

39. An energy supply device of a medical device, applied to a medical device power distribution system, the medical device power distribution system comprising a plurality of different power source modules, the device comprising: an obtaining module configured to obtain a target operating power of the medical device when executing a target scanning protocol; a determining module configured to determine a target power source module from the plurality of different power source modules according to the target operating power; an energy supply module configured to supply energy to the medical device by controlling the release of stored electric energy in the target power source module.

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