Direct-current power supply mutual backup system, control method, device, equipment, medium and product

Abstract

The invention provides a direct-current power supply mutual backup system, a control method, a control device, equipment, a medium and a product, and relates to the technical field of artificial intelligence, in particular to the technical fields of cloud computing, data centers, power supply systems and the like. The direct-current power supply mutual backup system comprises a plurality of power supply systems; each power supply system comprises a transformer, an alternating current distribution unit and a direct current power supply, and the direct current power supply comprises an alternating current and direct current conversion unit; the transformer is used for carrying out voltage reduction processing on the alternating current provided by the alternating current power supply so as to obtain low-voltage alternating current; the alternating current distribution unit is used for distributing the low-voltage alternating current to the alternating current-direct current conversion unit in each power supply system; and the alternating current and direct current conversion unit is used for converting the low-voltage alternating current in each power supply system into direct current and providing the direct current for electric equipment. The reliability and the stability of the direct-current power supply mutual backup system can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of artificial intelligence technology, specifically to the fields of cloud computing, data centers, power supply systems, etc., and particularly to a DC power supply backup system, control method, device, equipment, medium, and product. Background Technology

[0002] A data center's DC power backup system includes multiple sets of DC power supplies that back each other up, providing uninterrupted DC power to electrical equipment such as servers and switches. Summary of the Invention

[0003] This disclosure provides a DC power supply backup system, control method, apparatus, equipment, medium, and product.

[0004] According to one aspect of this disclosure, a DC power supply backup system is provided, comprising: multiple power supply systems; each power supply system comprising: a transformer, an AC distribution unit, and a DC power supply, wherein the DC power supply comprises: an AC-DC conversion unit; the transformer is connected to the AC power supply corresponding to its own power supply system; the AC distribution unit is connected to the transformer in its own power supply system and to the AC-DC conversion units in each power supply system; the transformer is used to step down the AC power supplied by the AC power supply to obtain low-voltage AC power; the AC distribution unit is used to distribute the low-voltage AC power to the AC-DC conversion units in each power supply system;

[0005] The AC / DC conversion unit is used to convert low-voltage AC power in each power supply system into DC power and supply the DC power to the electrical equipment.

[0006] According to another aspect of this disclosure, a control method is provided for a system as described in any of the preceding claims, comprising: identifying a faulty power supply system among multiple power supply systems of a DC power backup system; isolating an AC / DC conversion module connected to the faulty power supply system; and adjusting the operating parameters of an AC / DC conversion module connected to a non-faulty power supply system.

[0007] According to another aspect of this disclosure, a control device is provided for use in a system as described in any of the preceding claims, comprising: a determination module for determining a faulty power supply system among multiple power supply systems of a DC power supply backup system; and a processing module for isolating AC / DC conversion modules connected to the faulty power supply system and adjusting the operating parameters of AC / DC conversion modules connected to non-faulty power supply systems.

[0008] According to another aspect of this disclosure, an electronic device is provided, comprising: at least one processor; and a memory communicatively connected to said at least one processor; wherein the memory stores instructions executable by said at least one processor, said instructions being executed by said at least one processor to enable said at least one processor to perform the method as described in any of the foregoing aspects.

[0009] According to another aspect of this disclosure, a non-transitory computer-readable storage medium is provided storing computer instructions, wherein the computer instructions are configured to cause the computer to perform the method according to any of the preceding aspects.

[0010] According to another aspect of this disclosure, a computer program product is provided, comprising a computer program that, when executed by a processor, implements the method according to any of the preceding aspects.

[0011] This disclosure can improve the reliability and stability of DC power supply backup systems.

[0012] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0013] The accompanying drawings are provided to better understand this solution and do not constitute a limitation of this disclosure. Wherein:

[0014] Figure 1 This is a schematic diagram based on the first embodiment of the present disclosure;

[0015] Figure 2 This is a schematic diagram of a DC power supply provided according to an embodiment of the present disclosure;

[0016] Figure 3 This is a schematic diagram according to the second embodiment of the present disclosure;

[0017] Figure 4 This is a schematic diagram according to the third embodiment of the present disclosure;

[0018] Figure 5 This is a schematic diagram according to the fourth embodiment of the present disclosure;

[0019] Figure 6 This is a schematic diagram according to the fifth embodiment of the present disclosure;

[0020] Figure 7 This is a schematic diagram of an electronic device used to implement the control method of the embodiments of this disclosure. Detailed Implementation

[0021] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0022] Each DC power supply typically includes an AC / DC conversion unit and a battery pack. The AC / DC conversion unit includes at least one AC / DC conversion module, which can be represented as an AC / DC module, used to convert AC power to DC power. The battery pack includes at least one battery, which can directly provide DC power. When the AC power supply is normal, the AC / DC module can be used to convert AC power to DC power and supply the converted DC power to the electrical equipment (such as servers, switches, etc.). When the AC power supply fails, the battery can directly provide DC power to the electrical equipment.

[0023] In related technologies, taking two sets of DC power supplies as an example, each set of DC power supplies has a main incoming circuit breaker installed on its corresponding AC power supply line, and the two AC power supply lines are connected in series through a bus tie circuit breaker. This requires at least two main incoming circuit breakers and one bus tie circuit breaker.

[0024] The above solution has many components, poor reliability, and the switching of the AC power supply system will cause a brief discharge of the battery pack, which will affect the battery life and the operational stability of the electrical equipment.

[0025] Figure 1 This is a schematic diagram based on the first embodiment of the present disclosure, which provides a DC power supply backup system.

[0026] like Figure 1 As shown, the DC power supply backup system 100 includes: multiple power supply systems 101a~101n;

[0027] Each power supply system includes: a transformer, an AC distribution unit, and a DC power supply; the DC power supply includes: an AC-DC conversion unit;

[0028] The transformer is connected to the AC power supply corresponding to its own power supply system; the AC distribution unit is connected to the transformer in its own power supply system and the AC-DC conversion unit in each power supply system.

[0029] The transformer is used to step down the AC power supplied by the AC power source to obtain low-voltage AC power; the AC distribution unit is used to distribute the low-voltage AC power to the AC-DC conversion units in each power supply system; the AC-DC conversion units are used to convert the low-voltage AC power in each power supply system into DC power and supply the DC power to the electrical equipment.

[0030] In this system, the power supply system corresponds one-to-one with the AC power source, which is represented by AC power source A, AC power source B and AC circuit N respectively. Taking power supply system 101a as an example, the transformer in power supply system 101a is connected to AC power source A. Specifically, it can be connected through a circuit breaker. In order to distinguish it from the subsequent circuit breaker, the circuit breaker here can be specifically called the front-end circuit breaker.

[0031] A transformer is connected to an AC power source within its own power supply system to step down the AC power supplied by that source, resulting in lower-voltage AC power. That is, it converts AC power at a first voltage to AC power at a second voltage, where the second voltage is lower than the first voltage; for example, if the first voltage is 10kV, the second voltage might be 0.4kV.

[0032] Low-voltage alternating current refers to alternating current after voltage reduction, i.e., alternating current with the second voltage mentioned above.

[0033] The AC distribution unit connects to the transformer in its own power supply system at one end and to the AC / DC conversion units in each power supply system at the other end. In this way, it can distribute the low-voltage AC power in its own power supply system to each AC / DC conversion unit.

[0034] For example, the AC distribution unit in power supply system 101a can distribute the low-voltage AC power output from the transformer in its own power supply system to the AC-DC conversion unit in its own power supply system 101a, and can also distribute the low-voltage AC power to the AC-DC conversion units in other power supply systems (power supply systems 101b to power supply systems 101n).

[0035] The AC / DC conversion unit is connected to the AC distribution unit in each power supply system, converting the low-voltage AC power in each power supply system into DC power, and then supplying the DC power to the electrical equipment.

[0036] For example, the AC / DC conversion unit in power supply system 101a is connected to the AC distribution unit in its own power supply system 101a, and is also connected to the AC distribution units in other power supply systems (power supply systems 101b to power supply systems 101n). In this way, low-voltage AC power from different power supply systems can be obtained, and then the low-voltage AC power from different power supply systems can be converted into DC power respectively.

[0037] When the AC power supply corresponding to at least one power supply system is normal, each AC-DC conversion unit can convert the low-voltage AC power in each power supply system to obtain at least one DC power supply, which can then be provided to the user equipment.

[0038] When there is at least one source of DC power obtained from AC power, it is not necessary to use the DC power directly provided by the battery pack. The battery pack provides power by discharging, so there is no need for the battery pack to discharge, thereby improving battery life and operational stability.

[0039] AC / DC conversion units in different power supply systems can provide DC power to the same electrical equipment, realizing mutual backup power supply of DC power and ensuring a continuous and stable DC power supply for user equipment.

[0040] In this embodiment, since the AC distribution unit in each power supply system is connected to the AC-DC conversion unit in each power supply system, the different power supply systems are connected based on the AC distribution unit, rather than through the bus tie circuit breaker and the main incoming circuit breaker. This reduces the number of components and improves reliability. In addition, through the above connection relationship, one end of the AC distribution unit is connected to the transformer in its own power supply system, so that the AC distribution unit is connected in parallel to the output line of the corresponding transformer. Based on the parallel connection, low-voltage AC power is distributed to each power supply system. In this way, when switching AC power, at least one DC power source based on AC power can be provided without discharging the battery pack, thereby improving battery life and operational stability.

[0041] In some embodiments, the number of power supply systems is N, where N is a positive integer greater than 1;

[0042] Within the same power supply system, the AC distribution unit includes at least N AC distribution modules, and the AC / DC conversion unit includes at least N sets of AC / DC conversion modules;

[0043] In this configuration, one end of each of the N AC distribution modules is connected to the transformer in its own power supply system, and the other end is connected to a group of AC / DC conversion modules in different power supply systems. Furthermore, the AC distribution modules in different power supply systems are connected to different groups of AC / DC conversion modules in the N groups of DC conversion modules.

[0044] For example, taking N=2 as an example, in each power supply system, the AC distribution unit includes at least two AC distribution modules, and the AC-DC conversion unit includes at least two sets of AC-DC conversion modules.

[0045] Specifically, the two power supply systems are represented by the first power supply system and the second power supply system, respectively. The transformer in the first power supply system is represented by the first transformer, and the transformer in the second power supply system is represented by the second transformer. The two AC distribution modules in the first power supply system are represented by D11 and D12, respectively. The two sets of AC-DC conversion modules in the first power supply system are represented by A and B, respectively. The two AC distribution modules in the second power supply system are represented by D21 and D22, respectively. The two sets of AC-DC conversion modules in the second power supply system are represented by C and D, respectively. Then:

[0046] One end of D11 and D12 is connected to the first transformer, the other end of D11 is connected to A, the other end of D12 is connected to C, one end of D21 and D22 is connected to the second transformer, the other end of D21 is connected to B, and the other end of D22 is connected to D.

[0047] In this way, each power supply system can distribute low-voltage AC power to the AC-DC conversion modules of each power supply system through different AC distribution modules within it, and each power supply system can obtain low-voltage AC power from different power supply systems through different sets of AC-DC conversion modules. Thus, for each power supply system, multiple AC power sources can be accurately obtained, and then multiple DC power sources can be provided to user equipment through AC-DC conversion to achieve continuous and stable DC power supply.

[0048] In some embodiments, within the same power supply system, the AC distribution unit further includes M AC distribution modules, and the AC / DC conversion unit further includes M groups of AC / DC conversion modules, where M is a positive integer; wherein, one end of each of the M AC distribution modules is connected to the transformer in its own power supply system, and the other end is connected to each of the M groups of AC / DC conversion modules in its own power supply system.

[0049] For example, based on the above example, the first power supply system also includes two AC distribution modules, denoted by D13 and D14 respectively, and two sets of AC / DC conversion modules, denoted by E and F respectively. The second power supply system also includes two AC distribution modules, denoted by D23 and D24 respectively, and two sets of AC / DC conversion modules, denoted by G and H respectively. Then:

[0050] One end of D13 and D14 is connected to the first transformer, the other end of D13 is connected to E, the other end of D14 is connected to F, one end of D23 and D24 is connected to the second transformer, the other end of D23 is connected to G, and the other end of D22 is connected to H.

[0051] In practice, transformers may provide a large capacity of low-voltage AC power. Based on this, within the same power supply system, multiple AC / DC conversion modules can distribute the low-voltage AC power output from the transformer.

[0052] For example, if a transformer can provide 1200kW of low-voltage AC power and each AC / DC conversion module has a capacity of 300kW, then four AC / DC conversion modules can be configured in each power supply system, such as the four AC / DC conversion modules A, B, E, and F configured in the first power supply system mentioned above.

[0053] Furthermore, the number of AC / DC conversion modules in each group can be configured according to actual needs. For example, if the capacity of a group of AC / DC conversion modules is 300kW, and the capacity of each AC / DC conversion module is 30kW, then 10 AC / DC conversion modules are configured in that group.

[0054] In this way, the number of AC / DC conversion modules and the number of AC / DC conversion modules in each group can be configured according to the actual situation, improving configuration flexibility.

[0055] In some embodiments, the AC distribution module may be a circuit breaker.

[0056] For example, D11~D14 and D21~D24 mentioned above can all be circuit breakers.

[0057] This allows for simple and efficient AC power distribution.

[0058] In some embodiments, the DC power supply transmits the DC power through a DC bus;

[0059] The DC power supply also includes: a battery pack;

[0060] The battery pack and the AC / DC conversion unit are connected in parallel to the DC bus.

[0061] Based on the aforementioned transformer, AC distribution unit, and AC / DC conversion unit, AC power can be converted into DC power, meaning that the DC power supply can provide DC power obtained from AC power.

[0062] In addition, the DC power supply may also include a battery pack, which includes one or more batteries, each of which directly provides DC power. In this way, when multiple AC power sources are abnormal, the battery pack provides power to achieve uninterrupted DC power supply.

[0063] In terms of connection, the battery pack and the AC / DC conversion unit can be connected in parallel on the DC bus.

[0064] For example, refer to Figure 2 , Figure 2 This is a schematic diagram of a DC power supply provided according to an embodiment of the present disclosure.

[0065] like Figure 2As shown, the DC power supply 200 includes an AC / DC conversion unit 201 and a battery pack 202. The AC / DC conversion unit 201 and the battery pack 202 are connected in parallel on the DC bus, and provide DC power to the electrical equipment through the DC bus.

[0066] When at least one AC power source is normal, the AC-DC conversion unit can convert AC power into DC power and supply it to the electrical equipment through the DC bus; when all AC power sources are abnormal, the battery pack directly provides DC power and supplies it to the electrical equipment through the DC bus.

[0067] In this embodiment, the DC power supply also includes a battery pack, which can provide power when the AC power supply is abnormal, ensuring the uninterruption of DC power supply.

[0068] Figure 3 This is a schematic diagram based on the second embodiment of the present disclosure, which provides a DC power supply backup system. This embodiment uses two power supply systems as an example.

[0069] like Figure 3 As shown, the DC power supply backup system includes a first power supply system and a second power supply system.

[0070] The first power supply system includes: a first transformer 301, a first AC distribution unit 302, and a first DC power supply 303. The second power supply system includes: a second transformer 304, a second AC distribution unit 305, and a second DC power supply 306.

[0071] The first transformer 301 is connected to the first AC power supply (represented by N1 power supply) corresponding to the first power supply system, and the second transformer 302 is connected to the second AC power supply (represented by N2 power supply) corresponding to the second power supply system.

[0072] Both the first and second transformers are used for voltage reduction. For example, if both the first and second AC power sources provide AC power at a first voltage, then the first transformer converts the AC power at the first voltage provided by the first AC power source into AC power at a second voltage, and the second transformer converts the AC power at the first voltage provided by the second AC power source into AC power at a second voltage. The second voltage is less than the first voltage, such as the second voltage being 0.4kV and the first voltage being 10kV.

[0073] The first AC distribution unit 302 and the second AC distribution unit 305 both include two AC distribution modules, and the AC distribution module can specifically be a circuit breaker.

[0074] Taking the first AC distribution unit as an example, one of the AC distribution modules is connected to a set of AC-DC conversion modules (such as the A set of AC-DC conversion modules) in its own power supply system (the first power supply system), and the other AC distribution module is connected to a set of AC-DC conversion modules (such as the C set of AC-DC conversion modules) in another power supply system (the second power supply system), so as to distribute the low-voltage AC power output by the first transformer to the first power supply system and the second power supply system respectively.

[0075] The first DC power supply 303 includes: a first AC-DC conversion unit and a first battery pack;

[0076] The second DC power supply 306 includes: a second AC / DC conversion unit and a second battery pack.

[0077] The first AC / DC conversion unit 302 and the second AC distribution unit 305 both include two sets of AC / DC conversion modules. Taking the first AC / DC conversion unit as an example, it includes set A and set B of AC / DC conversion modules. Each set of AC / DC conversion modules may include the same or different numbers of AC / DC conversion modules. The AC / DC conversion modules are represented by AC / DC. Taking set A as an example, set A AC / DC conversion modules are represented by AC / DC A1 to AC / DC An.

[0078] When at least one AC power source is normal, each AC-DC conversion unit converts AC power to DC power and supplies it to the electrical equipment. When all AC power sources are abnormal, the battery pack directly supplies DC power to the electrical equipment.

[0079] User equipment, such as server racks, can be supplied with DC power through a power distribution unit (PDU). A PDU is a power distribution device.

[0080] In this embodiment, the low-voltage AC power output from the transformers of each power supply system is distributed to each power supply system through the AC distribution unit, eliminating the need for main circuit breakers and bus tie circuit breakers, which reduces the number of components and improves reliability. Furthermore, the AC / DC conversion units of each power supply system can obtain low-voltage AC power from each power supply system, eliminating the need for battery packs to supply power during AC power switching, i.e., eliminating the need for battery pack discharge, thereby improving battery life and enhancing the operational stability of electrical equipment.

[0081] Figure 4 This is a schematic diagram based on the third embodiment of the present disclosure, which provides a DC power supply backup system.

[0082] like Figure 4 As shown, the system 400 includes: an execution system 401 and a control device 402.

[0083] The execution system 401 is a system for executing DC power supply, specifically as described above. Figure 1 or Figure 3 The system shown.

[0084] The control device 402 is used to control the aforementioned execution system 401.

[0085] Specifically, the control device is used to isolate the AC / DC conversion module connected to the faulty power supply system after identifying the faulty power supply system among the multiple power supply systems, and to adjust the operating parameters of the AC / DC conversion module connected to the non-faulty power supply system.

[0086] by Figure 3 Taking the system shown as an example, if the output voltage or output current of power supply N1 is detected to be less than the preset value, it is determined that the first power supply system is a faulty power supply system. At this time, the AC / DC conversion modules connected to the first power supply system are isolated, that is, the AC / DC conversion modules of group A and group C are isolated.

[0087] Taking the isolation process of the A-group AC / DC conversion module as an example, it can specifically include: controlling the output-side circuit breaker connected to the A-group AC / DC conversion module to be in the open state. The AC / DC conversion module can be connected to the DC bus through the output-side circuit breaker. At this time, controlling the output-side circuit breaker to be in the open state can avoid the impact of the faulty power supply system on the normal power supply system.

[0088] In addition, the operating parameters of the AC / DC conversion modules connected to the normal power supply system can be adjusted, such as adjusting the operating parameters of AC / DC conversion modules in groups B and D. Taking group B as an example, the output current or output voltage of the AC / DC conversion module in group B can be adjusted to meet the power demand of the electrical equipment. For example, if initially there are 4 power supply groups, each providing 20A of current, and after the first power supply system fails, the power supply is provided by 2 groups, then each group can be adjusted to provide 40A of current.

[0089] In addition, after the faulty power supply system is restored to normal, the operating parameters of each relevant module can be readjusted to restore the common power supply of multiple power supply systems, such as readjusting to provide 20A of current to each AC-DC conversion module.

[0090] In this embodiment, precise control of the system can be achieved based on the control device.

[0091] Figure 5 Based on a schematic diagram of the fourth embodiment of this disclosure, this embodiment provides a control method applied to the above-described system, the method comprising:

[0092] 501. Identify the faulty power supply system among multiple power supply systems in a DC power supply backup system.

[0093] 502. Isolate the AC / DC conversion module connected to the faulty power supply system and adjust the operating parameters of the AC / DC conversion module connected to the non-faulty power supply system.

[0094] Among them, it can monitor the output voltage or output current of AC power supply, and when it is less than a preset threshold, it can determine that the corresponding power supply system is a faulty power supply system.

[0095] Once a faulty power supply system is identified, the AC / DC conversion modules connected to the faulty power supply system are isolated, and the operating parameters of the AC / DC conversion modules connected to the non-faulty power supply systems are adjusted.

[0096] For example, refer to Figure 3 If the first power supply system is a faulty power supply system, then the AC / DC conversion modules of groups A and C are isolated, and the operating parameters of the AC / DC conversion modules of groups B and D are adjusted.

[0097] The isolation process may specifically include keeping the output-side circuit breaker connected to the AC / DC conversion module in the open state, and adjusting operating parameters such as adjusting the output voltage or output current of the AC / DC conversion module.

[0098] For example, taking the isolation process of the A-group AC / DC conversion module as an example, it can specifically include: controlling the output-side circuit breaker connected to the A-group AC / DC conversion module to be in the open state. The AC / DC conversion module can be connected to the DC bus through the output-side circuit breaker. At this time, controlling the output-side circuit breaker to be in the open state can avoid the impact of the faulty power supply system on the normal power supply system.

[0099] Taking the adjustment of the operating parameters of the AC / DC conversion module of group B as an example, such as adjusting the output current or output voltage of the AC / DC conversion module of group B to meet the power demand of the electrical equipment, such as initially 4 groups of power supply, each group providing 20A of current, after the first power supply system fails, the power supply is provided by 2 groups, then each group can be adjusted to provide 40A of current.

[0100] In addition, after the faulty power supply system is restored to normal, the operating parameters of each relevant module can be readjusted to restore the common power supply of multiple power supply systems, such as readjusting to provide 20A of current to each AC-DC conversion module.

[0101] In this embodiment, by isolating or adjusting parameters based on the faulty power supply system, precise control of the DC power backup system can be achieved.

[0102] Figure 6 This is a schematic diagram based on the fifth embodiment of the present disclosure, which provides a control device. This control device is applied to the unit described in any of the preceding claims, such as... Figure 6 As shown, the device 600 includes a determination module 601 and a control module 602.

[0103] The determination module 601 is used to determine the faulty power supply system among multiple power supply systems in the DC power supply backup system; the processing module 602 is used to isolate the AC / DC conversion module connected to the faulty power supply system and adjust the operating parameters of the AC / DC conversion module connected to the non-faulty power supply system.

[0104] In this embodiment, by isolating or adjusting parameters based on the faulty power supply system, precise control of the DC power backup system can be achieved.

[0105] It is understood that the same or similar content in different embodiments of this disclosure can be referred to each other.

[0106] It is understood that the terms "first" and "second" in the embodiments of this disclosure are only used for distinction and do not indicate the degree of importance or the order of events.

[0107] It is understandable that, unless otherwise specified, the order of steps in the process indicates that the temporal relationship between these steps is not limited.

[0108] The collection, storage, use, processing, transmission, provision, and disclosure of user personal information involved in the technical solution disclosed herein comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0109] According to embodiments of this disclosure, this disclosure also provides an electronic device, a readable storage medium, and a computer program product.

[0110] Figure 7 A schematic block diagram of an example electronic device 700 that can be used to implement embodiments of the present disclosure is shown. The electronic device 700 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0111] like Figure 7As shown, the electronic device 700 includes a computing unit 701, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 702 or a computer program loaded from a storage unit 708 into a random access memory (RAM) 703. The RAM 703 may also store various programs and data required for the operation of the electronic device 700. The computing unit 701, ROM 702, and RAM 703 are interconnected via a bus 704. An input / output (I / O) interface 705 is also connected to the bus 704.

[0112] Multiple components in electronic device 700 are connected to I / O interface 705, including: input unit 706, such as keyboard, mouse, etc.; output unit 707, such as various types of displays, speakers, etc.; storage unit 708, such as disk, optical disk, etc.; and communication unit 709, such as network card, modem, wireless transceiver, etc. Communication unit 709 allows electronic device 700 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0113] The computing unit 701 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the computing unit 701 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 701 performs the various methods and processes described above, such as control methods. For example, in some embodiments, the control method may be implemented as a computer software program tangibly contained in a machine-readable medium, such as storage unit 708. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 700 via ROM 702 and / or communication unit 709. When the computer program is loaded into RAM 703 and executed by the computing unit 701, one or more steps of the control method described above may be performed. Alternatively, in other embodiments, the computing unit 701 may be configured to perform control methods by any other suitable means (e.g., by means of firmware).

[0114] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0115] The program code used to implement the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable task processing device, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0116] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0117] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0118] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0119] Computer systems can include clients and servers. Clients and servers are generally geographically separated and typically interact via communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. A server can be a cloud server, also known as a cloud computing server or cloud host, a hosting product within the cloud computing service system that addresses the shortcomings of traditional physical hosts and VPS (Virtual Private Server) services, such as high management difficulty and weak business scalability. Servers can also be servers for distributed systems or servers incorporating blockchain technology.

[0120] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0121] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A DC power supply backup system, comprising: Multiple power supply systems; Each power supply system includes: a transformer, an AC distribution unit, and a DC power supply, wherein the DC power supply includes: an AC-DC conversion unit; The transformer is connected to the AC power supply corresponding to its own power supply system. The AC distribution unit is connected to the transformer in its own power supply system and the AC-DC conversion unit in each power supply system. The transformer is used to step down the AC power supplied by the AC power source to obtain low-voltage AC power. The AC distribution unit is used to distribute the low-voltage AC power to the AC-DC conversion units in each power supply system; The AC / DC conversion unit is used to convert low-voltage AC power in each power supply system into DC power and supply the DC power to the electrical equipment.

2. The system according to claim 1, wherein, The number of power supply systems is N, where N is a positive integer greater than 1; Within the same power supply system, the AC distribution unit includes at least N AC distribution modules, and the AC / DC conversion unit includes at least N sets of AC / DC conversion modules; In this configuration, one end of each of the N AC distribution modules is connected to the transformer in its own power supply system, and the other end is connected to a group of AC / DC conversion modules in different power supply systems. Furthermore, the AC distribution modules in different power supply systems are connected to different groups of AC / DC conversion modules in the N groups of DC conversion modules.

3. The system according to claim 2, wherein, Within the same power supply system, the AC distribution unit further includes M AC distribution modules, and the AC / DC conversion unit further includes M sets of AC / DC conversion modules, where M is a positive integer; In this configuration, one end of each of the M AC distribution modules is connected to the transformer in its own power supply system, and the other end is connected to each of the M AC / DC conversion modules in its own power supply system.

4. The system according to claim 2 or 3, wherein, The communication distribution module includes: breaker.

5. The system according to claim 1, wherein, The DC power supply transmits the DC power through a DC bus; The DC power supply also includes: a battery pack; The battery pack and the AC / DC conversion unit are connected in parallel to the DC bus.

6. The system according to claim 2, further comprising: The control device is used to isolate the AC / DC conversion module connected to the faulty power supply system after identifying the faulty power supply system among the multiple power supply systems, and to adjust the operating parameters of the AC / DC conversion module connected to the non-faulty power supply system.

7. A control method applied to the system as described in any one of claims 1-6, the method comprising: Identify the faulty power supply system from among multiple power supply systems in a DC power supply backup system; The AC / DC conversion module connected to the faulty power supply system is isolated, and the operating parameters of the AC / DC conversion module connected to the non-faulty power supply system are adjusted.

8. A control device applied to the system as described in any one of claims 1-6, the device comprising: The determination module is used to identify the faulty power supply system among multiple power supply systems in a DC power backup system. The processing module is used to isolate the AC / DC conversion module connected to the faulty power supply system and to adjust the operating parameters of the AC / DC conversion module connected to the non-faulty power supply system.

9. An electronic device, comprising: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method of claim 7.

10. A non-transitory computer-readable storage medium storing computer instructions, wherein, The computer instructions are used to cause the computer to perform the method according to claim 7.

11. A computer program product comprising a computer program that, when executed by a processor, implements the method according to claim 7.

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