Energy management method, device and system of PCS system and storage medium

Abstract

The invention provides an energy management method, device and system of a PCS system and a storage medium, and belongs to the technical field of energy management, and the method comprises the steps: constructing a distributed auxiliary power supply architecture; the distributed auxiliary power supply architecture comprises a first auxiliary power supply arranged on an alternating current side and a second auxiliary power supply arranged on a direct current side; determining a capacity configuration of the first auxiliary power supply and the second auxiliary power supply based on the load information; an energy management policy is determined based on the capacity configurations of the first auxiliary power supply and the second auxiliary power supply. According to the energy management method, device and system of the PCS and the storage medium, the energy storage efficiency can be improved, and the problem that the overall energy efficiency is relatively low due to energy loss in the electric energy transmission and distribution process is solved.

Description

Technical Field

[0001] The present disclosure belongs to the field of energy management technology, and more specifically, to an energy management method, device, system and storage medium for a PCS system. Background Art

[0002] As environmental pollution and energy crisis become increasingly serious, the world is shifting its focus to the development and application of renewable energy, which has become a core part of the global energy strategy. The falling cost and increasing penetration of renewable energy have led to a growing share of distributed power sources in the global energy system. However, the volatility and instability of renewable energy have brought challenges to the energy management and distribution of power grids. Compared with traditional power systems that rely on large power stations and huge transmission networks, centralized architectures produce more energy losses during energy transmission, and have lower adaptability and response speed to changes in energy demand or the connection of distributed energy to the grid. Energy losses during power transmission and distribution make the overall energy efficiency relatively low. Summary of the invention

[0003] The purpose of the present disclosure is to provide an energy management method, device, system and storage medium for a PCS system to improve energy storage efficiency and solve the problem of relatively low overall energy efficiency due to energy loss during power transmission and distribution.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an energy management method for a PCS system, including: Constructing a distributed auxiliary power supply architecture; the distributed auxiliary power supply architecture includes setting a first auxiliary power supply on the AC side and setting a second auxiliary power supply on the DC side; determining a capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information; An energy management strategy is determined based on the capacity configuration of the first auxiliary power source and the second auxiliary power source.

[0005] According to a second aspect of the embodiments of the present disclosure, there is provided an energy management device for a PCS system, including: A power supply architecture module, used to construct a distributed auxiliary power supply architecture; the distributed auxiliary power supply architecture includes setting a first auxiliary power supply on the AC side and setting a second auxiliary power supply on the DC side; A load configuration module, configured to determine the capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information; The energy management module is used to determine an energy management strategy based on the capacity configuration of the first auxiliary power source and the second auxiliary power source.

[0006] According to a third aspect of an embodiment of the present disclosure, an energy management system for a PCS system is provided, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, wherein when the processor executes the computer program, the steps of the above-mentioned energy management method for a PCS system are implemented.

[0007] According to a fourth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned energy management method for a PCS system are implemented.

[0008] The energy management method, device, system and storage medium of a PCS system provided by the embodiments of the present disclosure have the following beneficial effects: On the one hand, the layout of the traditional centralized power supply architecture is often limited by the fixed position of the power supply, which results in the entire system being designed around a high-power power supply, increasing the complexity and cost of wiring. The distributed auxiliary power supply architecture, on the other hand, provides the first and second auxiliary power supplies on the AC side and the DC side respectively, so that the power supplies are closer to their respective ports, greatly simplifying the wiring design, improving the convenience of installation and maintenance, and reducing the loss and failure risks that may be caused by long-distance wiring.

[0009] On the other hand, compared with the traditional single large-capacity auxiliary power supply, the distributed auxiliary power supply architecture uses multiple small-capacity power supplies. This design not only reduces the manufacturing cost of a single power supply module, but also broadens the selection range of hardware modules. At the same time, the small-capacity power supply is also simpler and more efficient in terms of heat dissipation and control, further reducing the cost of the overall system.

[0010] On the other hand, the distributed auxiliary power supply architecture realizes power supply decoupling on the line by supplying power separately on the AC side and the DC side. Even if the power supply on one side fails, it will not affect the normal operation of the other side. In addition, since both sides can be used as power supply sources, when the power supply on one side is insufficient or fails, the other side can quickly supply power, ensuring uninterrupted power supply to critical loads. This redundant design not only improves the reliability of power supply, but also reduces the risk of system crashes caused by single point failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 A flowchart of an energy management method for a PCS system provided in one embodiment of the present disclosure; Figure 2 A diagram of a distributed auxiliary power supply architecture provided in accordance with an embodiment of the present disclosure; Figure 3 A schematic diagram of an energy management strategy flow provided by an embodiment of the present disclosure; Figure 4 A structural block diagram of an energy management device for a PCS system provided in one embodiment of the present disclosure; Figure 5 A schematic block diagram of an energy management system of a PCS system provided in one embodiment of the present disclosure. DETAILED DESCRIPTION

[0013] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present disclosure. However, it should be clear to those skilled in the art that the present disclosure may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obstructing the description of the present disclosure with unnecessary details.

[0014] In order to make the purpose, technical solutions and advantages of the present disclosure more clear, specific embodiments will be described below in conjunction with the accompanying drawings.

[0015] Please refer to Figure 1 , Figure 1 A flowchart of an energy management method for a PCS system provided in an embodiment of the present disclosure, the method may include S101 to S103.

[0016] S101: construct a distributed auxiliary power supply architecture. The distributed auxiliary power supply architecture includes setting a first auxiliary power supply on the AC side and setting a second auxiliary power supply on the DC side.

[0017] In this embodiment, the distributed auxiliary power supply architecture refers to a power supply structure in which the auxiliary power supplies are distributed in different locations. Figure 2 As shown. The AC side refers to the side connected to the AC grid, involving the input, output and conversion of AC power. The first auxiliary power supply is set on the AC side, which can be used to provide additional power support, stabilize voltage or respond to emergencies in the AC part. The DC side is the side related to the DC line, involving the transmission and use of DC power. The second auxiliary power supply is located on the DC side, which can play a role in supplementing power supply and stabilizing DC voltage in the DC link.

[0018] For example, when the AC power grid fluctuates or the system has special needs for AC power, stable AC power is provided. The second auxiliary power supply on the DC side ensures the stable operation of the DC equipment in the DC link and provides power support in time when the DC load changes or fails. The two work together to improve the reliability and stability of the system. Specifically, a small AC generator or UPS and other equipment can be installed on the AC side as the first auxiliary power supply. A battery pack or a DC power supply module can be used as the second auxiliary power supply on the DC side. The power supplies on both sides are monitored and managed by sensors and controllers to achieve automatic switching and coordinated operation.

[0019] For example, in a renewable energy power generation system, a distributed auxiliary power supply architecture can ensure stable operation of the system. When the output of solar or wind power generation is unstable, the first auxiliary power supply on the AC side can stabilize the voltage in interaction with the power grid, and the second auxiliary power supply on the DC side can provide reliable power for DC loads such as energy storage devices.

[0020] S102: Determine capacity configuration of the first auxiliary power source and the second auxiliary power source based on load information.

[0021] In this embodiment, the load information may include parameters such as electric power, current, and voltage required by various electrical equipment in the power system, including load variation patterns in different time periods, peak load, average load, etc. The capacity configuration of the first auxiliary power supply and the second auxiliary power supply refers to determining appropriate power supply capacity for the first auxiliary power supply on the AC side and the second auxiliary power supply on the DC side according to actual needs to meet the power supply requirements under different operating conditions.

[0022] In this embodiment, the load information is monitored to understand the change of power demand, and the capacity of the auxiliary power supply required is calculated based on the information to ensure that the auxiliary power supply can provide sufficient power support during peak loads and does not cause waste due to excess capacity during low loads.

[0023] For example, sensors and monitoring equipment can be used to collect load information in real time, and the load variation pattern and peak value can be determined through data analysis algorithms. Then, the capacity of the auxiliary power supply can be determined in combination with actual reliability requirements and cost considerations.

[0024] For example, in a data center, the capacity configuration of the first auxiliary power supply and the second auxiliary power supply is determined by monitoring the load information of the server and other equipment. When the load of the data center suddenly increases, the auxiliary power supply can provide additional power in time to ensure the stable operation of the server. In industrial production, according to the load requirements of different equipment, the capacity of the auxiliary power supply is reasonably configured to cope with power fluctuations in the production process.

[0025] S103: Determine an energy management strategy based on the capacity configuration of the first auxiliary power source and the second auxiliary power source.

[0026] In this embodiment, by analyzing the capacity of the first auxiliary power supply and the second auxiliary power supply, it is determined how to reasonably allocate the output power of the two auxiliary power supplies under different operating conditions. The energy management strategy may refer to dynamically adjusting the output power of the auxiliary power supply according to the change of load, increasing the output during the peak load period, and reducing the output during the low load period to achieve efficient use of energy.

[0027] Exemplarily, in a smart microgrid, an energy management strategy is formulated based on the capacity configuration of the first auxiliary power supply and the second auxiliary power supply. When renewable energy generation is insufficient and the power supply of the power grid is unstable, the energy management strategy can start one or two auxiliary power supplies to power critical loads, while coordinating the charging and discharging of energy storage devices to improve the reliability and energy efficiency of the entire microgrid. For example, when the load is low, the output of the auxiliary power supply can be reduced to reduce energy consumption. When the load is at a peak or the main power supply fails, the two auxiliary power supplies are coordinated to increase the output according to the capacity to ensure stable power supply.

[0028] In this embodiment, the PCS system is a distributed auxiliary power supply architecture. The load information may include power consumption in different time periods, peak and valley values ​​of the load, etc. By analyzing this information, the capacity required for the auxiliary power supply can be determined to meet the actual energy demand. The purpose of the energy management strategy is to optimize the energy distribution and use of the system, improve the energy storage efficiency, and reduce energy loss.

[0029] It can be concluded from the above that the beneficial effects of this embodiment are: on the one hand, the layout of the traditional centralized power supply architecture is often limited by the fixed position of the power supply, which causes the entire system to be designed around the high-power power supply, increasing the complexity and cost of wiring. The distributed auxiliary power supply architecture sets the first and second auxiliary power supplies on the AC side and the DC side respectively, making the power supplies closer to their respective ports, greatly simplifying the wiring design, improving the convenience of installation and maintenance, and reducing the loss and failure risks that may be caused by long-distance wiring.

[0030] On the other hand, compared with the traditional single large-capacity auxiliary power supply, the distributed auxiliary power supply architecture uses multiple small-capacity power supplies. This design not only reduces the manufacturing cost of a single power module, but also broadens the selection range of hardware modules. At the same time, small-capacity power supplies are simpler and more efficient in terms of heat dissipation and control, further reducing the cost of the overall system. In addition, the distributed design also facilitates the flexible adjustment of the power supply configuration according to different application scenarios, improving the flexibility and adaptability of the system.

[0031] On the other hand, the distributed auxiliary power supply architecture realizes power supply decoupling on the line by supplying power separately on the AC side and the DC side. Even if the power supply on one side fails, it will not affect the normal operation of the other side. In addition, since both sides can be used as power supply sources, when the power supply on one side is insufficient or fails, the other side can quickly take over the power supply task, ensuring uninterrupted power supply to critical loads. This redundant design not only improves the reliability of power supply, but also reduces the risk of system crash caused by single point failure. At the same time, through reasonable energy management strategies, the efficiency of power supply use can be further optimized, the power supply life can be extended, and the long-term operating cost can be reduced, thereby improving the energy efficiency and stability of the entire PCS system.

[0032] In one embodiment of the present disclosure, determining the capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information includes: A load capacity is determined based on the load information.

[0033] The capacity of the first auxiliary power source and the capacity of the second auxiliary power source are determined based on the load capacity.

[0034] In this embodiment, determining the load capacity based on the load information includes: The load type is determined based on the load information, and the load type includes an immediate power supply load and a non-immediate power supply load.

[0035] The load capacity is determined based on the immediately powered load and the non-immediately powered load.

[0036] In this embodiment, the immediately powered load may include loads such as control circuits and drive circuits, and the non-immediately powered load may include loads such as fans. The operating time of the non-immediately powered load is relatively flexible, the starting operating time can be changed, and it can be switched on and off at any time during operation. Load information refers to various data related to electrical equipment in the power system, which may include the power demand, operating time, working mode, etc. of the equipment. For example, the power size of different machines and equipment in a factory, the daily operating time and other information. The load capacity represents the total electrical power required by all electrical equipment within a specific time. For example, the sum of the power of all enterprise electrical equipment in an industrial park.

[0037] Exemplarily, the load type is determined based on the collected load information. Different types of loads have different importance and power supply requirements. The total load capacity is calculated based on the load type. For loads that are immediately powered, their power supply requirements should be given priority when determining the capacity configuration to ensure that sufficient power is available at any time. For loads that are not immediately powered, they can be allocated based on the remaining power capacity on the basis of satisfying the immediately powered loads. Load information can be collected by installing sensors and monitoring equipment, such as power sensors, current transformers, etc.

[0038] This embodiment accurately configures the capacity of the first auxiliary power supply and the capacity of the second auxiliary power supply through load information, ensures that loads that are immediately powered are given priority, and loads that are not immediately powered are flexibly allocated, thereby improving power supply reliability and economy.

[0039] In one embodiment of the present disclosure, the load capacity includes a first capacity and a second capacity. The first capacity is the maximum power required by the load for immediate power supply, and the second capacity is the maximum power required by the load for non-immediate power supply.

[0040] Determining the capacity of the first auxiliary power source and the capacity of the second auxiliary power source based on the load capacity includes: A third capacity is determined based on the first capacity and the second capacity, and the third capacity is the capacity of the first auxiliary power source.

[0041] A fourth capacity is determined based on the first capacity and the second capacity, and the fourth capacity is the capacity of the second auxiliary power source.

[0042] The third capacity is greater than or equal to the first capacity, and the third capacity is greater than or equal to the second capacity.

[0043] The fourth capacity is greater than or equal to the first capacity, and the third capacity is greater than or equal to the second capacity.

[0044] The sum of the third capacity and the fourth capacity is a first value, the sum of the first capacity and the second capacity is a second value, and the first value is greater than or equal to the second value.

[0045] In this embodiment, the capacity of the AC side auxiliary power supply architecture and the DC side auxiliary power supply needs to meet the maximum power required by the immediate power supply load. When the capacity of one side of the AC and DC side power supplies meets the immediate power supply load, the startup of the immediate power supply load is completed. At the same time, it should meet the maximum power required by the non-immediate power supply load. The startup of the non-immediate power supply load is achieved after both the AC and DC power supplies are started.

[0046] Exemplarily, the capacity configuration formula of the first auxiliary power supply and the second auxiliary power supply is:

[0047] in, Respectively represent the capacity of the first auxiliary power supply (i.e., the third capacity) and the capacity of the second auxiliary power supply (i.e., the fourth capacity), They respectively represent the maximum power required for the load to be powered immediately (i.e., the first capacity) and the maximum power required for the load not to be powered immediately (i.e., the second capacity).

[0048] This embodiment optimizes the capacity configuration of the first auxiliary power supply and the second auxiliary power supply to ensure that the immediate power supply load can be started when either power supply is started, while ensuring that the non-immediate power supply load runs smoothly after the dual power supplies are started, thereby improving system stability and response speed and optimizing energy distribution.

[0049] In one embodiment of the present disclosure, a PCS system energy management method further includes: A first capacity is calculated based on a first formula.

[0050] The second capacity is calculated based on the second formula.

[0051] The first formula is:

[0052] in, Indicates that the immediate power supply load a is The actual power consumed at any moment, Indicates that the power supply load is immediately The power consumed at any time, Indicates the operating time interval of the immediate power supply load a.

[0053] The second formula is:

[0054]

[0055] in, Indicates that the non-immediate power supply load b is The actual power consumed at any moment, and They represent the non-immediate power supply load b at The minimum power and maximum power consumed at all times. When it is 0, it means that the non-immediate power supply load b has been disconnected from the power supply. and They respectively represent the two end values ​​of the operating time interval of the non-immediate power supply load b.

[0056] In this embodiment, according to the distributed auxiliary power supply architecture, the load category is divided into an immediate power supply load and a non-immediate power supply load, and the load capacity is configured according to the two load types. At this time, it is necessary to calculate the power of the immediate power supply load and the non-immediate power supply load at a certain moment to ensure that the two auxiliary power supplies in the distributed auxiliary power supply architecture can meet the load operation at a certain moment. Specifically, the first formula is a mathematical model of the immediate power supply load, and the second formula is a mathematical model of the non-immediate power supply load.

[0057] Exemplarily, multiple powers of the load immediately powered within the first operating time are calculated based on the first formula, and a maximum value is selected from the multiple powers as the first capacity; Based on the second formula, multiple powers of the non-immediate power supply loads within the second operating time are calculated, and a maximum value is selected from the multiple powers as the second capacity. Both the first operating time and the second operating time are fixed time periods.

[0058] This embodiment ensures that the power supply in the distributed auxiliary power supply architecture can meet the load demand in each time period by accurately calculating the capacity of the loads that are immediately powered and those that are not immediately powered, thereby improving system stability and energy efficiency.

[0059] In one embodiment of the present disclosure, the distributed auxiliary power supply architecture further includes: The first auxiliary power source is connected to the immediate power supply load and the non-immediate power supply load respectively.

[0060] The second auxiliary power source is connected to the load that is immediately powered, and is also connected to the load that is not immediately powered through the first switch.

[0061] In this embodiment, the distributed auxiliary power supply architecture is as follows: Figure 2 The AC auxiliary power supply is the first auxiliary power supply, and the DC auxiliary power supply is the second auxiliary power supply.

[0062] Exemplarily, when the first auxiliary power supply or the second auxiliary power supply is started, the immediately powered load is started first and powered by the started auxiliary power supply, and then the other auxiliary power supply is started. Only when the capacities of the two auxiliary power supplies meet the capacity constraint, the first switch is closed to start the non-immediately powered load.

[0063] This embodiment adopts a distributed auxiliary power supply architecture, which can ensure that the loads that are immediately powered have priority in obtaining power, while flexibly adjusting the start-up timing of the loads that are not immediately powered, thereby improving stability and reliability, reducing the impact of a single power supply failure on the overall system, and optimizing energy utilization.

[0064] In one embodiment of the present disclosure, determining an energy management strategy based on the capacity configuration of a first auxiliary power source and a second auxiliary power source includes: If the first auxiliary power supply is started, the immediate power supply load is started, the first auxiliary power supply supplies power to the immediate power supply load, and then controls the second auxiliary power supply to start.

[0065] If the second auxiliary power supply is started, the immediate power supply load is started, the second auxiliary power supply supplies power to the immediate power supply load, and then controls the first auxiliary power supply to start.

[0066] If the capacity of the first auxiliary power source and the capacity of the second auxiliary power source meet the capacity constraint, the first switch is closed to start the non-immediate power supply load.

[0067] In this embodiment, the status and capacity information of the two auxiliary power supplies are monitored in real time. When power supply is required, which auxiliary power supply is started according to a preset strategy, and it is controlled to supply power to the load that is immediately powered. At the same time, the startup of the other auxiliary power supply is monitored. When it is determined that the capacity of the two auxiliary power supplies meets the requirements, the first switch is closed to start the load that is not immediately powered.

[0068] For example, in a factory, production equipment is an immediate power supply load, while lighting equipment is a non-immediate power supply load. When there is a problem with the power supply of the power grid, if the first auxiliary power supply is started, the production equipment is first ensured to start running, and the first auxiliary power supply provides power for it, and then the second auxiliary power supply is controlled to start to provide more stable power support. When the capacity of the two auxiliary power supplies meets the total load demand of the factory, the first switch is closed to start non-immediate power supply loads such as lighting equipment. In this way, it can ensure that when the power supply is limited, the operation of key equipment is given priority, while the capacity of the auxiliary power supply is reasonably utilized.

[0069] For example, Figure 3 As shown, an energy management strategy is formulated for the distributed auxiliary power supply architecture and auxiliary power supply and load configuration. According to the distributed power supply architecture, auxiliary power supplies are configured on both the AC side and the DC side, and the load capacity is configured according to the auxiliary power supply capacity. The load priority is set, and the load is divided into an immediate power supply load and a non-immediate power supply load. The priority of the immediate power supply load is higher than that of the non-immediate power supply load. On this basis, one of the power supply terminals on the AC side or the DC side is started first, and then the immediate power supply load is powered. At the same time, after the drive circuit is started, the unstarted auxiliary power supply on the other side is started. When the capacity constraint condition is met and the non-immediate power supply line switch state K=1 is met (that is, the switch is closed), the non-immediate power supply load (that is, non-essential load) is started to improve energy utilization and optimize energy management.

[0070] This embodiment can intelligently allocate auxiliary power, give priority to powering key equipment, and then take non-key equipment into consideration, thereby improving resource utilization, enhancing system stability and flexibility, and is suitable for a variety of power supply scenarios.

[0071] Corresponding to the energy management method of a PCS system in the above embodiment, Figure 4 This is a structural block diagram of an energy management device for a PCS system provided in an embodiment of the present disclosure. For ease of description, only the parts related to the embodiment of the present disclosure are shown.

[0072] refer to Figure 4 The energy management device 20 of the PCS system includes: a power architecture module 21, a load configuration module 22 and an energy management module 23.

[0073] The power supply architecture module 21 is used to construct a distributed auxiliary power supply architecture. The distributed auxiliary power supply architecture includes a first auxiliary power supply on the AC side and a second auxiliary power supply on the DC side.

[0074] The load configuration module 22 is used to determine the capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information.

[0075] The energy management module 23 is used to determine an energy management strategy based on the capacity configuration of the first auxiliary power source and the second auxiliary power source.

[0076] In one embodiment of the present disclosure, the load configuration module 22 is specifically configured to determine the load capacity based on the load information.

[0077] The capacity of the first auxiliary power source and the capacity of the second auxiliary power source are determined based on the load capacity.

[0078] In an embodiment of the present disclosure, the load configuration module 22 is further configured to determine the load type based on the load information. The load type includes an immediate power supply load and a non-immediate power supply load.

[0079] The load capacity is determined based on the immediately powered load and the non-immediately powered load.

[0080] In one embodiment of the present disclosure, the load capacity includes a first capacity and a second capacity. The first capacity is the maximum power required for the immediate power supply load, and the second capacity is the maximum power required for the non-immediate power supply load. The load configuration module 22 is further configured to determine a third capacity based on the first capacity and the second capacity, and the third capacity is the capacity of the first auxiliary power supply.

[0081] A fourth capacity is determined based on the first capacity and the second capacity, and the fourth capacity is the capacity of the second auxiliary power source.

[0082] The third capacity is greater than or equal to the first capacity, and the third capacity is greater than or equal to the second capacity.

[0083] The fourth capacity is greater than or equal to the first capacity, and the third capacity is greater than or equal to the second capacity.

[0084] The sum of the third capacity and the fourth capacity is a first value, the sum of the first capacity and the second capacity is a second value, and the first value is greater than or equal to the second value.

[0085] In one embodiment of the present disclosure, an energy management device 20 of a PCS system further includes: A calculation module is used to calculate a first capacity based on a first formula.

[0086] The second capacity is calculated based on the second formula.

[0087] The first formula is:

[0088] in, Indicates that the immediate power supply load a is The actual power consumed at any moment, Indicates that the power supply load is immediately The power consumed at any time, Indicates the operating time interval of the immediate power supply load a.

[0089] The second formula is:

[0090]

[0091] in, Indicates that the non-immediate power supply load b is The actual power consumed at any moment, and They represent the non-immediate power supply load b at The minimum power and maximum power consumed at all times. When it is 0, it means that the non-immediate power supply load b has been disconnected from the power supply. and They respectively represent the two end values ​​of the operating time interval of the non-immediate power supply load b.

[0092] In one embodiment of the present disclosure, the power supply architecture module 21 is specifically used to connect the first auxiliary power supply to the immediate power supply load and the non-immediate power supply load respectively.

[0093] The second auxiliary power source is connected to the load that is immediately powered, and is also connected to the load that is not immediately powered through the first switch.

[0094] In one embodiment of the present disclosure, the energy management module 23 is specifically used to start the immediate power supply load if the first auxiliary power supply is started, the first auxiliary power supply supplies power to the immediate power supply load, and then controls the second auxiliary power supply to start.

[0095] If the second auxiliary power supply is started, the immediate power supply load is started, the second auxiliary power supply supplies power to the immediate power supply load, and then controls the first auxiliary power supply to start.

[0096] If the capacity of the first auxiliary power source and the capacity of the second auxiliary power source meet the capacity constraint, the first switch is closed to start the non-immediate power supply load.

[0097] See also Figure 5 , Figure 5 This is a schematic block diagram of an energy management system of a PCS system provided by an embodiment of the present disclosure. Figure 5The energy management system 300 of a PCS system in the embodiment shown may include: one or more processors 301, one or more input devices 302, one or more output devices 303 and one or more memories 304. The processors 301, input devices 302, output devices 303 and memories 304 communicate with each other via a communication bus 305. The memory 304 is used to store computer programs, and the computer programs include program instructions. The processor 301 is used to execute the program instructions stored in the memory 304. The processor 301 is configured to call the program instructions to execute the functions of each module in the above-mentioned device embodiments, such as Figure 4 The functions of modules 21 to 23 are shown.

[0098] It should be understood that in the embodiment of the present disclosure, the processor 301 may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0099] The input device 302 may include a touch panel, a fingerprint collection sensor (for collecting the user's fingerprint information and fingerprint direction information), a microphone, etc., and the output device 303 may include a display (LCD, etc.), a speaker, etc.

[0100] The memory 304 may include a read-only memory and a random access memory, and provide instructions and data to the processor 301. A portion of the memory 304 may also include a non-volatile random access memory. For example, the memory 304 may also store information about the device type.

[0101] In a specific implementation, the processor 301, input device 302, and output device 303 described in the embodiments of the present disclosure can execute the implementation methods described in the first and second embodiments of the energy management method of a PCS system provided in the embodiments of the present disclosure, and can also execute the implementation method of the energy management system 300 of a PCS system described in the embodiments of the present disclosure, which will not be repeated here.

[0102] In another embodiment of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by the processor, all or part of the processes in the above-mentioned embodiment method are implemented, and the computer program can also be completed by instructing the relevant hardware through the computer program. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by the processor, the steps of each of the above-mentioned method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0103] The computer-readable storage medium may be an internal storage unit of an energy management system of a PCS system in any of the aforementioned embodiments, such as a hard disk or memory of an energy management system of a PCS system. The computer-readable storage medium may also be an external storage device of an energy management system of a PCS system, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on an energy management system of a PCS system. Furthermore, the computer-readable storage medium may also include both an internal storage unit and an external storage device of an energy management system of a PCS system. The computer-readable storage medium is used to store computer programs and other programs and data required by an energy management system of a PCS system. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

[0104] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0105] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the energy management system and unit of a PCS system described above can refer to the corresponding process in the aforementioned method embodiment and will not be repeated here.

[0106] In the several embodiments provided in the present application, it should be understood that the disclosed energy management system and method of a PCS system can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces or units, or it can be an electrical, mechanical or other form of connection.

[0107] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present disclosure.

[0108] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0109] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present disclosure, and these modifications or replacements should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for energy management of a PCS system, characterized in that: include: Build a distributed auxiliary power architecture; The distributed auxiliary power supply architecture includes providing a first auxiliary power supply on the AC side and providing a second auxiliary power supply on the DC side; determining a capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information; An energy management strategy is determined based on the capacity configuration of the first auxiliary power source and the second auxiliary power source.

2. The energy management method of a PCS system according to claim 1, characterized in that: The determining the capacity configuration of the first auxiliary power supply and the second auxiliary power supply based on the load information includes: determining a load capacity based on the load information; The capacity of the first auxiliary power source and the capacity of the second auxiliary power source are determined based on the load capacity.

3. The energy management method of a PCS system according to claim 2, characterized in that: The determining the load capacity based on the load information comprises: Determine a load type based on the load information; the load type includes an immediate power supply load and a non-immediate power supply load; The load capacity is determined based on the immediately powered load and the non-immediately powered load.

4. The energy management method of a PCS system according to claim 3, characterized in that: The load capacity includes a first capacity and a second capacity; the first capacity is the maximum power required by the immediate power supply load, and the second capacity is the maximum power required by the non-immediate power supply load; The determining the capacity of the first auxiliary power supply and the capacity of the second auxiliary power supply based on the load capacity includes: determining a third capacity based on the first capacity and the second capacity, the third capacity being the capacity of the first auxiliary power supply; determining a fourth capacity based on the first capacity and the second capacity, the fourth capacity being the capacity of the second auxiliary power supply; The third capacity is greater than or equal to the first capacity, and the third capacity is greater than or equal to the second capacity; The fourth capacity is greater than or equal to the first capacity, and the third capacity is greater than or equal to the second capacity; The sum of the third capacity and the fourth capacity is a first value, the sum of the first capacity and the second capacity is a second value, and the first value is greater than or equal to the second value.

5. The energy management method of a PCS system according to claim 4, characterized in that: Also includes: Calculating the first capacity based on a first formula; Calculating the second capacity based on a second formula; The first formula is: in, Indicates that the immediate power supply load a is The actual power consumed at any moment, Indicates that the power supply load is immediately The power consumed at any time, It represents the operation time interval of the immediate power supply load a; The second formula is: in, Indicates that the non-immediate power supply load b is The actual power consumed at any moment, and They represent the non-immediate power supply load b at The minimum power and maximum power consumed at all times. When it is 0, it means that the non-immediate power supply load b has been disconnected from the power supply. and They respectively represent the two end values ​​of the operating time interval of the non-immediate power supply load b.

6. The energy management method of a PCS system according to claim 3, characterized in that: The distributed auxiliary power supply architecture further includes: The first auxiliary power source is connected to the immediate power supply load and the non-immediate power supply load respectively; The second auxiliary power source is connected to the immediately powered load, and the second auxiliary power source is also connected to the non-immediately powered load via a first switch.

7. The energy management method of a PCS system according to claim 6, characterized in that: The determining of the energy management strategy based on the capacity configuration of the first auxiliary power supply and the second auxiliary power supply includes: If the first auxiliary power supply is started, the immediate power supply load is started, the first auxiliary power supply supplies power to the immediate power supply load, and then the second auxiliary power supply is controlled to start; If the second auxiliary power supply is started, the immediate power supply load is started, the second auxiliary power supply supplies power to the immediate power supply load, and then controls the first auxiliary power supply to start; If the capacity of the first auxiliary power source and the capacity of the second auxiliary power source meet the capacity constraint, the first switch is closed to start the non-immediate power supply load.

8. An energy management device for a PCS system, characterized in that: include: Power architecture module, used to build distributed auxiliary power architecture; The distributed auxiliary power supply architecture includes providing a first auxiliary power supply on the AC side and providing a second auxiliary power supply on the DC side; A load configuration module, configured to determine the capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information; An energy management module is used to determine an energy management strategy based on the capacity configuration of the first auxiliary power supply and the second auxiliary power supply.

9. An energy management system for a PCS system, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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