Power supply system

Abstract

The invention discloses a power supply system, and relates to the technical field of data centers. According to the system, a plurality of power supply systems are designed in a distributed manner, and each power supply system or each corresponding load is configured with a centrally designed energy storage system, so that the load can work normally based on a first direct current power supply directly provided by the energy storage system or a corresponding type of power supply provided by the correspondingly connected power supply system. Wherein the first direct-current power supply output by the energy storage system can be from the first mains supply and can also be from the electric energy stored by the energy storage system, and the corresponding type of power supply provided by the corresponding power supply system can be from the first direct-current power supply provided by the energy storage system and can also be from the second mains supply which does not share the same source with the first mains supply. Based on the design, various power supply modes exist for each load, and when a single power supply mode fails, one of other power supply modes can be adopted for power supply, so that the stability and the reliability of the whole power supply system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data centers, in particular to a power supply system. BACKGROUND

[0002] With the continuous development of the field of artificial intelligence, the demand for computing power is also increasing, and correspondingly, the construction of data centers is accelerating. The power supply system is crucial to the data center, and it runs through the entire data center's basic device.

[0003] In the prior art, the traditional power supply system of the data center usually sets the power supply system centrally and connects the centralized power supply system through a single power supply line, so that the centralized single power supply system simultaneously supplies power to multiple servers. However, when using the above method to supply power, if the single power supply line or the single power supply system fails or is damaged, all servers will be affected and stop working, affecting the service stability of the entire data center. SUMMARY

[0004] The main purpose of the present application is to provide a power supply system, which aims to solve the technical problem of how to improve the power supply stability of each load of the data center.

[0005] To achieve the above purpose, the present application provides a power supply system applied to a data center, comprising: an energy storage system and a plurality of power supply systems;

[0006] The input end of the energy storage system is used to connect the first power supply line, and the output end of the energy storage system is used to connect the first input end of each power supply system or the load corresponding to each power supply system respectively;

[0007] The second input end of each power supply system is used to connect the second power supply line, and the output end of each power supply system is used to connect the load corresponding to each power supply system respectively;

[0008] The energy storage system is used to output first direct current power to each power supply system or each load based on the stored electric energy when the first power supply line is not received;

[0009] The power supply system is used to convert at least one of the received first direct current power and the second power supply line to realize corresponding type power supply for the corresponding connected load.

[0010] In an embodiment, when the output end of the energy storage system is connected to each load respectively, each load unidirectionally obtains the first direct current power from the energy storage system through a unidirectional conduction component.

[0011] In an embodiment, the power supply system comprises a rectifier circuit.

[0012] An input end of the rectifier circuit is configured to be connected to the second commercial power supply, and an output end of the rectifier circuit is respectively connected to an output end of the energy storage system and an input end of the DC / DC circuit.

[0013] In an embodiment, when the output end of the energy storage system is connected to the first input end of each power supply system, each power supply system obtains the first DC power supply from the energy storage system in one direction through a one-way conduction component.

[0014] In an embodiment, the power supply system comprises a rectifier circuit and a DC / DC circuit.

[0015] An input end of the rectifier circuit is configured to be connected to the second commercial power supply, and an output end of the rectifier circuit is respectively connected to an input end of the DC / DC circuit and an output end of the energy storage system, and an output end of the DC / DC circuit is connected to a corresponding load.

[0016] In an embodiment, the power supply system comprises a rectifier circuit and a DC / DC circuit.

[0017] An input end of the rectifier circuit is configured to be connected to the second commercial power supply, and an output end of the rectifier circuit is respectively connected to an output end of the DC / DC circuit and a corresponding load, and an input end of the DC / DC circuit is connected to an output end of the energy storage system.

[0018] In an embodiment, the power supply system comprises a rectifier circuit.

[0019] An AC input end of the rectifier circuit is configured to be connected to the second commercial power supply, a DC input end of the rectifier circuit is connected to an output end of the energy storage system, and an output end of the rectifier circuit is connected to a corresponding load.

[0020] In an embodiment, the energy storage system comprises a charging module and an energy storage module.

[0021] The charging module is configured to convert the received first commercial power supply into the first DC power supply, and transmit the first DC power supply to the energy storage module and each power supply system or each load.

[0022] The energy storage module is configured to output the first DC power supply to each power supply system or each load based on stored electrical energy when the first DC power supply transmitted by the charging module is not received.

[0023] In an embodiment, the energy storage module comprises a battery pack, and the battery pack is connected to an output end of the charging module.

[0024] In an embodiment, the energy storage module comprises a photovoltaic module, and the photovoltaic module is connected to an output end of the charging module.

[0025] Or, the energy storage module includes: a wind power generation module, the wind power generation module is connected to the output end of the charging module.

[0026] The application provides a power supply system, which comprises an energy storage system and a plurality of power supply systems; the input end of the energy storage system is used for connecting a first commercial power, and the output end of the energy storage system is used for connecting the first input end of each power supply system or the corresponding load of each power supply system respectively; the second input end of each power supply system is used for connecting a second commercial power, and the output end of each power supply system is used for connecting the corresponding load respectively; the energy storage system is used for outputting first direct current power to each power supply system or each load based on the stored electric energy when the first commercial power is not received; and the power supply system is used for converting at least one of the received first direct current power and the second commercial power to realize corresponding type power supply for the corresponding connected load.

[0027] The plurality of power supply systems are distributedly designed, and one centralized energy storage system is configured for each power supply system or each corresponding load, so that the load can work normally based on the first direct current power directly provided by the energy storage system or the corresponding type power supply provided by the corresponding connected power supply system. The first direct current power output by the energy storage system can be derived from the first commercial power or the stored electric energy of the energy storage system, and the corresponding type power supply provided by the corresponding power supply system can be derived from the first direct current power provided by the energy storage system or the second commercial power which is not derived from the first commercial power. Based on the above design, there are multiple power supply modes for each load, and when a single power supply mode fails, another power supply mode can be used for power supply, thereby improving the stability and reliability of the entire power supply system. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0030] Figure 1 A structural schematic diagram of the power supply system embodiment one of the present application is provided.

[0031] Figure 2Another structural schematic diagram provided by the first embodiment of the power supply system of the present application;

[0032] Figure 3 A specific structural schematic diagram provided by the second embodiment of the power supply system of the present application;

[0033] Figure 4 A first specific structural schematic diagram provided by the third embodiment of the power supply system of the present application;

[0034] Figure 5 A second specific structural schematic diagram provided by the third embodiment of the power supply system of the present application;

[0035] Figure 6 A third specific structural schematic diagram provided by the third embodiment of the power supply system of the present application;

[0036] Figure 7 A fourth specific structural schematic diagram provided by the third embodiment of the power supply system of the present application;

[0037] Figure 8 A fifth specific structural schematic diagram provided by the third embodiment of the power supply system of the present application;

[0038] Figure 9 A sixth specific structural schematic diagram provided by the third embodiment of the power supply system of the present application;

[0039] Figure 10 A structural schematic diagram provided by the fourth embodiment of the power supply system of the present application;

[0040] Figure 11 Another structural schematic diagram provided by the fourth embodiment of the power supply system of the present application.

[0041] The object, function features and advantages of the present application will be further explained in combination with the embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0042] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application, and are not used to limit the present application.

[0043] In order to better understand the technical solutions of the present application, the following will be described in detail in combination with the drawings and specific embodiments.

[0044] The first embodiment of the power supply system of the present application is proposed, please refer to Figure 1 and Figure 2 , the power supply system comprises: an energy storage system 10 and a plurality of power supply systems 20;

[0045] The input end of the energy storage system 10 is used to connect the first commercial power, and the output end of the energy storage system 10 is used to connect the first input end of each power supply system 20 or the corresponding load 30 of each power supply system 20 respectively;

[0046] The second input end of each power supply system 20 is used to connect the second commercial power, and the output end of each power supply system 20 is connected to the corresponding load 30 respectively;

[0047] The energy storage system 10 is used to output the first direct current power to each power supply system 20 or each load 30 based on the stored electric energy when the first commercial power is not received;

[0048] The power supply system 20 is used to perform power conversion on at least one of the received first direct current power and the second commercial power to realize corresponding type of power supply for the corresponding connected load 30.

[0049] It should be understood that in the embodiment, the first commercial power can be understood as an alternating current power meeting the conventional power standard, which can be a 220V alternating current power. Correspondingly, the second commercial power can also be understood as an alternating current power meeting the conventional power standard, which can have the same or different power supply parameters as the first commercial power, but the power supply source is different from the first commercial power, and the two are independent of each other and do not affect each other.

[0050] It should be noted that in the embodiment, the first direct current power refers to a direct current power (constant voltage direct current power) with a voltage value set to a specific value. The energy storage system 10 refers to a system with both alternating current-direct current conversion function and energy storage function, which can convert alternating current power into direct current power and store energy based on the converted direct current power. In specific implementation, when the energy storage system 10 is connected to the first commercial power, it can convert the first commercial power into the first direct current power and output it, and at the same time, the energy storage system 10 can also store electric energy based on the converted first direct current power. When the energy storage system 10 is not connected to the first commercial power, it can also continue to output the first direct current power based on the stored electric energy for a short time.

[0051] It should be noted that in the embodiment, the power supply system 20 can perform multiple types of power conversion, which is used to connect the second commercial power, convert the connected second commercial power, obtain the power supply type required by the corresponding connected load 30, and provide it to the load 30 to support the normal work of the load 30. In addition, as Figure 1As shown, the power supply system 20 can adopt a double-input structure, that is, for any one power supply system 20, its first input end can be used to connect the output end of the energy storage system 10, and its second input end can be used to access the second commercial power, so that the power supply system 20 can not only perform power conversion on the first direct current power supplied by the energy storage system 10, but also perform power conversion on the second commercial power. Regardless of how the power supply system 20 performs power conversion, it will ultimately generate power supply adapted to the demand type of the corresponding connected load 30 and provide it to the corresponding connected load 30 to support the normal work of the load 30 and further improve the power supply stability of the power supply system.

[0052] It is worth noting that in this embodiment, the power supply of the load 30 demand type can be direct current power supply or alternating current power supply.

[0053] As can be easily understood, the power supply system can be specifically applied to the technical scenario of a data center, and the load 30 can be various types of servers set in the data center, and different types of servers can have different types of power supply demands, so the power supply system 20 needs to perform corresponding power conversion to provide the load 30 with power supply of an adapted type. Please refer to Figure 1 The first input end of any one power supply system 20 can be connected to the output end of the energy storage system 10 for receiving the first direct current power, and the second input end is used to access the second commercial power, so that it can perform power conversion on at least one of the received first direct current power and the second commercial power, thereby performing corresponding type power supply (direct current power supply or alternating current power supply) for the corresponding connected load 30; but in some cases, please refer to Figure 2 The load 30 can also directly work normally based on the above-mentioned first direct current power, so the energy storage system 10 can also not be connected with each power supply system 20, but be directly connected with the corresponding load 30, directly transmit the first direct current power to the corresponding load 30, to support the normal work of the load 30.

[0054] In a specific implementation, as one case, as Figure 1As shown, if the first input terminal of the power system 20 is connected to the output terminal of the energy storage system 10, then when the power supply system is simultaneously connected to both the first mains power and the second mains power, the energy storage system 10 will normally convert the first mains power into the first DC power supply and transmit it to each power system 20. Simultaneously, the power system 20 will perform power conversion on the second mains power and / or the first DC power supply, and provide the corresponding type of power supply to the corresponding connected load 30. When the first mains power fails, the energy storage system 10 will continue to temporarily output the first DC power supply to each power system 20 based on the stored electrical energy. The power system 20 can still convert the second mains power and / or the first DC power supply. The energy storage system 10 performs power conversion and provides the corresponding type of power supply to the corresponding connected load 30. When the second mains power fails, the energy storage system 10 normally converts the first mains power into the first DC power supply and transmits it to each power system 20. At the same time, the power system 20 performs power conversion on the first DC power supply and provides the corresponding type of power supply to the corresponding connected load 30. When both the first and second mains power fail, the energy storage system 10 continues to output the first DC power supply to each power system 20 based on the stored electrical energy. The power system 20 performs power conversion on the first DC power supply and provides the corresponding type of power supply to the corresponding connected load 30.

[0055] It is worth noting that, under the above circumstances, if any one of the power supply systems fails, it will only affect one connected load 30, and will not affect the normal operation of other loads 30.

[0056] In practical implementation, as another situation, such as Figure 2 As shown, if each load 30 is directly connected to the output terminal of the energy storage system 10, when the power supply system is simultaneously connected to both the first mains power and the second mains power, the energy storage system 10 normally converts the first mains power into the first DC power supply and transmits it to each load 30. At the same time, the power supply system 20 performs power conversion on the second mains power and provides the corresponding type of power supply to the corresponding connected load 30. When the first mains power fails, the energy storage system 10 continues to temporarily output the first DC power supply to each load 30 based on the stored electrical energy. The power supply system 20 can still perform power conversion on the second mains power and provide the corresponding type of power supply to the corresponding connected load 30. When the second mains power fails, the energy storage system 10 normally converts the first mains power into the first DC power supply and transmits it to each load 30. When both the first and second mains power fail simultaneously, the energy storage system 10 continues to output the first DC power supply to each load 30 based on the stored electrical energy.

[0057] It is worth noting that, under the above circumstances, if any power supply system fails, the load 30 can still be directly powered through the energy storage system 10, so the load 30 connected to the failed power supply system will not be significantly affected.

[0058] In addition, as another application mode of the power supply system proposed in the embodiment (not shown in the figure), if the load 30 is a direct current load, in actual cases, a plurality of power supply systems 20 can also be connected in parallel to the same load 30, and direct current power supply can be simultaneously provided for the same load 30. In this way, the load 30 can receive more power, and even if one of the power supply systems 20 fails, the load 30 can still obtain sufficient voltage to work normally. This power supply mode can drive high-power loads and ensure that the load 30 works more stably.

[0059] It should be further noted that in the embodiment, a plurality of one-way conduction components 40 are arranged between the energy storage system 10 and each power supply system 20 or each load 30 to prevent the power of the power supply system 20 from being transmitted in reverse to the energy storage system 10, thereby providing power supply safety.

[0060] The application provides a power supply system, which is distributedly designed with a plurality of power supply systems and configured with a centralized energy storage system for each power supply system or each corresponding load, so that the load can work normally based on the first direct current power supply directly provided by the energy storage system or the corresponding type of power supply provided by the corresponding connected power supply system. The first direct current power supply output by the energy storage system can be derived from the first commercial power or the power stored by the energy storage system itself, and the corresponding type of power supply provided by the corresponding power supply system can be derived from the first direct current power supply provided by the energy storage system or the second commercial power which is not derived from the first commercial power. Based on the above design, there are multiple power supply modes for each load, and when a single power supply mode fails, another one of the multiple power supply modes can be used for power supply, thereby improving the stability and reliability of the entire power supply system.

[0061] Based on the first embodiment of the power supply system of the application, in the second embodiment of the power supply system of the application, the same or similar contents as the above embodiment one can be referred to the above description, and will not be described in detail hereinafter. On this basis, please refer to Figure 3 In the case where the output end of the energy storage system 10 is connected to each load 30, each load 30 obtains the first direct current power supply from the energy storage system 10 through the one-way conduction component 40.

[0062] It should be noted that in the embodiment, in the case where the output end of the energy storage system 10 is directly connected to each load 30, a one-way conduction component 40 is arranged between the output end of each load 30 (or the output end of each power supply system 20) and the output end of the energy storage system 10, so that the power can only flow from the energy storage system 10 to each load 30, and cannot flow from each power supply system 20 to the energy storage system 10 at will, thereby ensuring power supply safety.

[0063] It is worth noting that in the present embodiment, as a preferred manner, the unidirectional conduction component 40 can be a reverse prevention diode. In addition, the number of unidirectional conduction components 40 can be one or more, Figure 3 In the present embodiment, only the case where the unidirectional conduction component 40 is multiple is shown. In the case where the unidirectional conduction component 40 is one, it can be specifically arranged between the energy storage system 10 and all loads 30; and in the case where the unidirectional conduction component 40 is multiple, it can be specifically arranged between the energy storage system 10 and each load 30, respectively.

[0064] Further, in the present embodiment, the power supply system 20 comprises a rectifier circuit 21.

[0065] The input end of the rectifier circuit 21 is used to connect the second commercial power, and the output end of the rectifier circuit 21 is respectively connected to the output end of the energy storage system 10 and the corresponding load 30.

[0066] It should be noted that, as shown in Figure 3 , regarding a specific structure inside the power supply system 20, in the case where the output end of the energy storage system 10 is directly connected to each load 30, it can be connected to the second commercial power through a rectifier circuit 21, and the second commercial power is directly rectified through the rectifier circuit 21, so that the second commercial power can be converted into power supply (including constant-voltage direct current with fixed voltage value and pulsating direct current with pulsating voltage value) suitable for the demand type of the load 30, and transmitted to the corresponding connected load 30 for power supply.

[0067] In specific implementation, when the second commercial power is not faulty, the second commercial power can be directly rectified by the rectifier circuit 21 to form constant-voltage direct current suitable for the demand of the load 30, and transmitted to the load 30 for normal power supply; when the second commercial power is faulty and the first commercial power is not faulty, the energy storage system 10 can transmit the first direct current power obtained by converting the first commercial power to the load 30 for normal power supply; when the first commercial power and the second commercial power are both faulty, the energy storage system 10 can temporarily output the first direct current power based on the stored electrical energy to the load 30 for normal power supply.

[0068] Based on the first embodiment of the power supply system of the present application, in the third embodiment of the power supply system of the present application, the same or similar contents as the above embodiment one can be referred to the above introduction, and will not be described in detail. On this basis, please refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9In the case where the output end of the energy storage system 10 is connected to the first input end of each power supply system 20, each power supply system 20 unidirectionally obtains the first direct current power supply from the energy storage system 10 through the unidirectional conduction component 40.

[0069] It should be noted that in the present embodiment, in the case where the output end of the energy storage system 10 is connected to the first input end of each power supply system 20, one unidirectional conduction component 40 is arranged between the first input end of each power supply system 20 and the output end of the energy storage system 10, so that the electric energy can only flow from the energy storage system 10 to each power supply system 20, but cannot flow from each power supply system 20 to the energy storage system 10 at will, thereby ensuring the safety of power supply.

[0070] It should be noted that in the present embodiment, as a preferred mode, the unidirectional conduction component 40 can be a reverse prevention diode. In addition, the number of unidirectional conduction components 40 can be one or more, Figures 4 to 9 In the present embodiment, only the case where the unidirectional conduction component 40 is multiple is shown. In the case where the unidirectional conduction component 40 is one, it can be specifically arranged between the energy storage system 10 and all power supply systems 20; and in the case where the unidirectional conduction component 40 is multiple, it can be specifically arranged between the energy storage system 10 and each power supply system 20.

[0071] In a specific implementation, as a specific case, please refer to Figure 4 The second commercial power supply can be in a fault state or a state of being cut off, and each power supply system 20 only works through the electric energy provided by the energy storage system 10. At this time, each energy storage system 10 can simultaneously unidirectionally obtain the first direct current power supply provided by the energy storage system 10 through one unidirectional conduction component 40 connected thereto respectively, thereby normally working.

[0072] Further, in the present embodiment, the power supply system 20 comprises a rectifier circuit 21 and a DCDC circuit 22.

[0073] The input end of the rectifier circuit 21 is used to connect the second commercial power supply, the output end of the rectifier circuit 21 is connected to the input end of the DCDC circuit 22 and the output end of the energy storage system 10 respectively, and the output end of the DCDC circuit 22 is connected to the corresponding load 30.

[0074] It should be noted that, as Figure 5As shown, in the case where the output ends of the energy storage system 10 are connected to the first input ends of each power supply system 20, as a first specific structure inside the power supply system 20, there is a rectifier circuit 21 and a DCDC circuit 22 in the power supply system 20. The input end of the rectifier circuit 21 can be used to access the second mains for rectifying the second mains to obtain direct current of a specific voltage. The input end of the DCDC circuit 22 is connected to the output end of the energy storage system 10 and the output end of the rectifier circuit 21, respectively. The DCDC circuit 22 converts the voltage of the direct current of the specific voltage or the first direct current supply through its voltage conversion function to obtain constant voltage direct current with a voltage adapted to the demand of the load 30, and transmits it to the corresponding connected load 30 for power supply.

[0075] In a specific implementation, when the second mains is not faulty, the second mains can be rectified by the rectifier circuit 21, and then boosted or bucked by the DCDC circuit 22, so as to form constant voltage direct current with a voltage adapted to the demand of the load 30, and transmit it to the load 30 for normal power supply. When the second mains is faulty and the first mains is not faulty, if the first direct current supply converted by the energy storage system 10 from the first mains does not meet the voltage demand of the load 30, the first direct current supply can be boosted or bucked by the DCDC circuit 22 first, and then transmitted to the load 30 for normal power supply. When the first mains and the second mains are both faulty, if the first direct current supply provided by the energy storage system 10 based on the stored electrical energy does not meet the voltage demand of the load 30, the first direct current supply can be boosted or bucked by the DCDC circuit 22 first, and then transmitted to the load 30 for normal power supply.

[0076] Further, in the embodiment, the power supply system 20 includes a rectifier circuit 21 and a DCDC circuit 22.

[0077] The input end of the rectifier circuit 21 is used to connect the second mains. The output end of the rectifier circuit 21 is connected to the output end of the DCDC circuit 22 and the corresponding load 30, respectively. The input end of the DCDC circuit 22 is connected to the output end of the energy storage system 10.

[0078] It should be noted that, as Figure 6 As shown, in the case where the output ends of the energy storage system 10 are connected to the first input ends of each power supply system 20, as a second specific structure inside the power supply system 20, the DCDC circuit 22 for voltage conversion can be arranged between the output end of the rectifier circuit 21 (or the load 30) and the energy storage system 10, so that the output end of the DCDC circuit 22 and the output end of the rectifier circuit 21 are connected to the corresponding load 30 at the same time.

[0079] In a specific implementation, when the second commercial power is not faulty, the power supply conversion can be directly performed on the second commercial power by the power supply system 20 to form constant-voltage direct current suitable for the demand of the load 30 and transmit the constant-voltage direct current to the load 30 to normally supply power to the load 30; when the second commercial power is faulty and the first commercial power is not faulty, if the first direct current power provided by the energy storage system 10 does not meet the voltage demand of the load 30, the first direct current power obtained by converting the first commercial power by the energy storage system 10 can be first boosted by the DCDC circuit 22, and then the boosted first direct current power is directly transmitted to the load 30 to normally supply power to the load 30; when the first commercial power and the second commercial power are both faulty, if the first direct current power formed by the energy storage system 10 based on the stored electric energy does not meet the voltage demand of the load 30, the first direct current power can be first boosted by the DCDC circuit 22, and then the boosted first direct current power is transmitted to the load 30 to normally supply power to the load 30.

[0080] It is worth noting that, as a variant of this case (not shown in the figure), the DCDC circuit 22 can also be arranged independently of the power supply system 20, and the number is not limited. When the number is one, it can be specifically arranged between the energy storage system 10 and each power supply system 20; when the number is multiple, it can be specifically arranged between the energy storage system 10 and each power supply system 20.

[0081] Further, in the present embodiment, the power supply system 20 comprises a rectifier circuit 21.

[0082] The AC input end of the rectifier circuit 21 is used to connect the second commercial power, the DC input end of the rectifier circuit 21 is connected to the output end of the energy storage system 10, and the output end of the rectifier circuit 21 is connected to the corresponding load 30.

[0083] It should be noted that, as shown in Figure 7 In the case where the output end of the energy storage system 10 is connected to the first input end of each power supply system 20, as a third specific structure inside the power supply system 20, the rectifier circuit 21 inside the power supply system 20 has multiple input ends, and has the functions of AC input and DC input. The AC input end is used to connect the second commercial power, and the DC input end is used to connect the output end of the energy storage system 10. One or more of the connected second commercial power and first direct current power can be converted into direct current of the corresponding type and provided to the load 30.

[0084] In a specific implementation, when the second commercial power is not faulty, the power supply system 20 can directly convert the second commercial power to form DC power suitable for the demand of the load 30 and transmit the DC power to the load 30 to normally supply power to the load 30; when the second commercial power is faulty and the first commercial power is not faulty, the first DC power converted by the energy storage system 10 from the first commercial power can be converted to form DC power suitable for the demand of the load 30 and provided to the load 30 to normally supply power to the load 30; when the first commercial power and the second commercial power are both faulty, the first DC power formed by the energy storage system 10 based on the stored electric energy can be converted to form DC power suitable for the demand of the load 30 and provided to the load 30 to normally supply power to the load 30.

[0085] Further, in the embodiment, the power supply system 20 includes a rectifier circuit 21, an inverter circuit 24, and a regulating circuit 23.

[0086] The input end of the rectifier circuit 21 is used to access the second commercial power, the output end of the rectifier circuit 21 is connected to the input end of the regulating circuit 23, the output end of the regulating circuit 23 is connected to the input end of the inverter circuit 24, the output end of the inverter circuit 24 is connected to the corresponding load 30, and the input end or the output end of the regulating circuit 23 is used to connect the energy storage system 10.

[0087] It should be noted that, in the embodiment, as shown in Figure 8 in the case where the output end of the energy storage system 10 is connected to the first input end of each power supply system 20, as the fourth specific structure inside the power supply system 20, the power supply type required by the load 30 can be AC power supply. The rectifier circuit 21 can be used to access the second commercial power to rectify the second commercial power to obtain DC power, the input end of the regulating circuit 23 is connected to the output end of the energy storage system 10, the rectified DC power or the first DC power is power factor adjusted by the regulating circuit 23, and then transmitted to the inverter circuit 24, and finally inverted by the inverter circuit 24 to form AC power suitable for the demand of the load 30 and transmit the AC power to the corresponding connected load 30 to supply power to the load 30.

[0088] In a specific implementation, when the second commercial power is not faulty, the second commercial power can be rectified by the rectifier circuit 21 to form a direct current, and then the power factor is adjusted by the adjustment circuit 23 and the inverter circuit 24 is inverted to form an alternating current suitable for the demand of the load 30, and the alternating current is transmitted to the load 30 to normally supply power to the load 30; when the second commercial power is faulty and the first commercial power is not faulty, the energy storage system 10 converts the first commercial power to form a first direct current power supply, the adjustment circuit 23 adjusts the power factor of the first direct current power supply obtained by converting the first commercial power, and then the inverter circuit 24 is inverted to form an alternating current suitable for the demand of the load 30, and the alternating current is transmitted to the corresponding connected load 30 to supply power to the load 30; when the second commercial power is faulty and the first commercial power is also faulty, the energy storage system 10 forms a first direct current power supply based on the stored electrical energy, the adjustment circuit 23 adjusts the power factor of the first direct current power supply directly provided by the energy storage system 10, and then the inverter circuit 24 is inverted to form an alternating current suitable for the demand of the load 30, and the alternating current is transmitted to the corresponding connected load 30 to supply power to the load 30.

[0089] It should be noted that in the present embodiment, as shown in Figure 9 the output end of the energy storage system 10 is connected to the first input end of each power supply system 20, as a fifth specific structure inside the power supply system 20, the power supply type required by the load 30 can be alternating current power supply. The rectifier circuit 21 can be connected to the second commercial power to rectify the second commercial power to obtain direct current, and the output end of the adjustment circuit 23 is connected to the output end of the energy storage system 10, the direct current obtained by rectification can be adjusted by the adjustment circuit 23 to adjust the power factor, and then transmitted to the inverter circuit 24, and finally the direct current or the first direct current power supply after power factor adjustment is inverted by the inverter circuit 24, thereby forming an alternating current suitable for the demand of the load 30, and the alternating current is transmitted to the corresponding connected load 30 to supply power to the load 30.

[0090] In specific implementation, when the second mains power is not faulty, the second mains power can be rectified by the rectifier circuit 21 to form DC power. Then, the power factor is adjusted by the regulating circuit 23 and the inverter circuit 24 performs inversion processing to form AC power adapted to the needs of the load 30, which is then transmitted to the load 30 to provide normal power supply. When the second mains power fails and the first mains power is not faulty, the energy storage system 10 converts the first mains power to form the first DC power supply. The inverter circuit 24 directly inverts the first DC power supply obtained from the first mains power supply to form AC power adapted to the needs of the load 30, which is then transmitted to the corresponding connected load 30 to provide power supply. When both the second and first mains power fail, the energy storage system 10 forms the first DC power supply based on the stored electrical energy. The inverter circuit 24 inverts the first DC power supply directly provided by the energy storage system 10 to form AC power adapted to the needs of the load 30, which is then transmitted to the corresponding connected load 30 to provide power supply.

[0091] It is worth noting that, as a specific approach, the regulating circuit 23 can be a power factor correction (PFC) circuit.

[0092] It should be understood that the various power supply systems 20 mentioned in the second and third embodiments above can be applied to the same power supply system simultaneously.

[0093] Based on one or more of the first, second, and third embodiments of this application, the content that is the same as or similar to the above embodiments in the fourth embodiment of this application can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 10 as well as Figure 11 Furthermore, in this embodiment, the energy storage system 10 includes: a charging module 11 and an energy storage module 12;

[0094] The charging module 11 is used to convert the received first mains power into the first DC power supply, and transmit the first DC power supply to the energy storage module 12 and each of the power systems 20 or each of the loads 30;

[0095] The energy storage module 12 is used to output a first DC power supply to each of the power systems 20 or each of the loads 30 based on the stored electrical energy when it does not receive the first DC power supply transmitted by the charging module 11.

[0096] It should be noted that in the embodiment, the charging module 11 is configured to convert the first commercial power from alternating current to direct current, and transmit the first direct current to the energy storage module 12 and the first input of each power supply system 20.

[0097] It can be easily understood that in the embodiment, the energy storage module 12 is configured to store energy based on the first direct current obtained by conversion. When the first direct current is not received, the energy storage module 12 can continue to provide the first direct current to the power supply system 20 or the load 30 based on the stored energy.

[0098] It should be noted that as one case, there can be multiple charging modules 11, and each charging module 11 is connected in parallel with each other, and connected to the energy storage module 12 and the first input of each power supply system 20, so as to improve the output current and output power in the power supply system, and improve the power supply efficiency.

[0099] Further, in the embodiment, the energy storage system 10 further comprises a switching module 13.

[0100] The first input of the switching module 13 is configured to be connected to the first commercial power, the second input of the switching module 13 is configured to be connected to the standby commercial power, the output of the switching module 13 is connected to the input of the charging module 11, and the control end of the switching module 13 is connected to the controller arranged outside.

[0101] The switching module 13 is configured to switch the input of the charging module 11 to be connected to the standby commercial power or the first commercial power based on the switching signal transmitted by the controller.

[0102] The charging module 11 is further configured to convert the standby commercial power into the first direct current, and provide the first direct current to the energy storage module 12 and each power supply system 20 or each load 30.

[0103] It should be noted that the switching signal refers to a logic signal with high level or low level output. The standby commercial power refers to another commercial power used to temporarily replace the first commercial power. The standby commercial power and the first commercial power are independent of each other and do not interfere with each other. In the embodiment, for the switching module 13, it can be understood as a multiple-input single-output switch structure, which is controlled by the controller (not shown in the figure) arranged outside, and can control the on-off state of the connection loop between the two inputs and the output of the switching module 13 according to the switching signal provided by the controller.

[0104] In a specific implementation, the switching module 13 can switch the charging module 11 to connect to any one of the standby mains or the first mains based on the received switching signal. When the charging module 11 accesses the first mains, the first mains can be converted into the first direct current power supply and provided to the energy storage module 12 and each power supply system 20 or each load 30; when the charging module 11 accesses the standby mains, the standby mains can also be converted into the first direct current power supply and provided to the energy storage module 12 and each power supply system 20 or each load 30.

[0105] As a preferred manner, the switching module 13 can be an automatic transfer switch (ATS) without switching speed requirement, and the control end thereof can also not be connected with the controller arranged externally, and the switching module 13 can automatically trigger the switching action by automatically detecting the electrical parameters of the mains.

[0106] Further, in the embodiment, the energy storage module 12 comprises a battery pack 121 connected to the output end of the charging module 11.

[0107] It is easy to understand that, as a specific case, the energy storage module 12 can be a battery pack 121 capable of storing electrical energy. The battery pack 121 can automatically store electrical energy when receiving the first direct current power supply, and automatically release the stored electrical energy to form the first direct current power supply when not receiving the first direct current power supply.

[0108] Further, in the embodiment, the energy storage module 12 comprises a photovoltaic module 122 connected to the output end of the charging module 11.

[0109] Or, the energy storage module 12 comprises a wind power generation module 123 connected to the output end of the charging module 11.

[0110] It should be noted that, as a specific case, the energy storage module 12 can be a photovoltaic module 122 capable of storing electrical energy. The photovoltaic module 122 can automatically store electrical energy when receiving the first direct current power supply, or convert light energy into electrical energy for storage when receiving external light irradiation, and automatically release the stored electrical energy to form the first direct current power supply when not receiving the first direct current power supply.

[0111] As another specific case, the energy storage module 12 can be a wind power generation module 123 capable of storing electrical energy. The wind power generation module 123 can automatically store electrical energy when receiving the first direct current power supply, or convert mechanical energy generated by wind into electrical energy for storage when wind is applied, and automatically release the stored electrical energy to form the first direct current power supply when not receiving the first direct current power supply.

[0112] The above merely preferred embodiments of the present application, and not therefore limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. A power supply system characterized by comprising: The power supply system applied to a data center comprises a storage system and a plurality of power supply systems; The input end of the storage system is connected to a first commercial power supply, and the output end of the storage system is connected to the first input end of each power supply system or the corresponding load of each power supply system. The second input end of each power supply system is connected to a second commercial power supply, and the output end of each power supply system is connected to the corresponding load. When the first commercial power supply is not received, the storage system outputs the first direct current power supply to each power supply system or each load based on the stored electric energy. The power supply system converts at least one of the received first direct current power supply and the second commercial power supply to supply the corresponding load with the corresponding type of power supply.

2. The power supply system of claim 1, wherein, When the output end of the storage system is connected to each load, each load obtains the first direct current power supply from the storage system in one direction through a unidirectional conduction component.

3. The power supply system of claim 2, wherein, The power supply system comprises a rectifier circuit. The input end of the rectifier circuit is connected to the second commercial power supply, and the output end of the rectifier circuit is connected to the corresponding load and the output end of the storage system.

4. The power supply system of claim 1, wherein, When the output end of the storage system is connected to the first input end of each power supply system, each power supply system obtains the first direct current power supply from the storage system in one direction through a unidirectional conduction component.

5. The power supply system of claim 1, wherein, The power supply system comprises a rectifier circuit and a DCDC circuit. The input end of the rectifier circuit is connected to the second commercial power supply, the output end of the rectifier circuit is connected to the input end of the DCDC circuit and the output end of the storage system, and the output end of the DCDC circuit is connected to the corresponding load.

6. The power supply system of claim 1, wherein, The power supply system comprises a rectifier circuit and a DCDC circuit. The input end of the rectifier circuit is connected to the second commercial power supply, the output end of the rectifier circuit is connected to the output end of the DCDC circuit and the corresponding load, and the input end of the DCDC circuit is connected to the output end of the storage system.

7. The power supply system of claim 1, wherein, The power supply system comprises a rectifier circuit. The AC input end of the rectifier circuit is connected to the second commercial power supply, the DC input end of the rectifier circuit is connected to the output end of the storage system, and the output end of the rectifier circuit is connected to the corresponding load.

8. The power supply system of claim 1, wherein, The storage system comprises a charging module and a storage module. The charging module converts the received first commercial power supply into the first direct current power supply and transmits the first direct current power supply to the storage module, each power supply system, or each load. When the first direct current power supply transmitted by the charging module is not received, the storage module outputs the first direct current power supply to each power supply system or each load based on the stored electric energy.

9. The power supply system of claim 8, wherein, The storage module comprises a battery pack connected to the output end of the charging module.

10. The power supply system of claim 8, wherein, The storage module comprises a photovoltaic module connected to the output end of the charging module. Alternatively, the storage module comprises a wind power generation module connected to the output end of the charging module.

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