Energy storage submodule and energy storage valve

Abstract

The utility model relates to an energy storage sub-module and an energy storage valve. The energy storage sub-module comprises a power module, a battery module and a power supply circuit. The power module comprises a plurality of first load assemblies, and the battery module comprises a plurality of mutually connected battery clusters and a second load assembly; the power supply circuit comprises a first main power supply circuit of the power module, a first redundant power supply circuit of the power module and at least one battery power supply circuit corresponding to the battery module; wherein the input end of the first main power supply circuit is connected with the battery confluence end of the energy storage sub-module, and the output end of the first main power supply circuit is connected with the plurality of first load assemblies; the output end of the first redundant power supply circuit is connected with a plurality of first load assemblies; the input ends of the battery power supply circuits are connected with the corresponding battery clusters and the first adjacent battery clusters of the battery clusters, and the output ends of the battery power supply circuits are connected with the second load assemblies corresponding to the battery clusters. According to the invention, redundant power supply for the energy storage sub-module is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, in particular to an energy storage sub-module and an energy storage valve. BACKGROUND

[0002] The core component of the energy storage valve is an energy storage valve sub-module (or simply referred to as an energy storage sub-module) integrated with a power module and a battery module, and therefore, stable operation of the energy storage sub-module is of great significance to high reliability of the energy storage valve and even the power system.

[0003] Power supply failure is a typical failure inside the energy storage sub-module, and according to the existing high-voltage direct-current engineering specification, redundant power supply needs to be configured for the internal load of the energy storage sub-module. Therefore, how to configure redundant power supply for the internal load of the energy storage sub-module is a problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application provides an energy storage sub-module and an energy storage valve, which can realize redundant power supply for each load component in the energy storage sub-module.

[0005] In a first aspect, the present application provides an energy storage sub-module, which comprises a power module, a battery module and a power supply circuit; wherein the power module comprises a plurality of first load components, the battery module comprises a plurality of interconnected battery clusters and a second load component; the power supply circuit comprises a first main power supply circuit of the power module, a first redundant power supply circuit of the power module and at least one battery power supply circuit corresponding to the battery module.

[0006] The input end of the first main power supply circuit is connected with the battery bus end of the energy storage sub-module, and the output end of the first main power supply circuit is connected with the plurality of first load components respectively.

[0007] The input end of the first redundant power supply circuit is the redundant power supply input end of the first redundant power supply circuit, and the output end of the first redundant power supply circuit is connected with the plurality of first load components.

[0008] The input end of the battery power supply circuit is connected with the corresponding battery cluster and the first adjacent battery cluster of the battery cluster respectively, and the output end of the battery power supply circuit is connected with the second load component corresponding to the battery cluster.

[0009] In the embodiment of the present application, the first main power supply circuit obtains the main power resource from the battery bus of the energy storage submodule, and can provide the main power resource for the plurality of first load components, and the first redundant power supply circuit provides the redundant power resource for the plurality of first load components, thereby realizing the redundant power supply for the first load components in the power module. On the other hand, the battery power supply circuit obtains the main power resource from the corresponding battery cluster and the redundant power resource from the first adjacent battery cluster of the battery cluster, and can provide the main power resource and the redundant power resource for the second load components corresponding to the battery cluster, thereby realizing the redundant power supply for the second load components in the battery module. It can be seen that the embodiment of the present application realizes the redundant power supply for the load components in the energy storage submodule, thereby facilitating the improvement of the power supply reliability of the energy storage submodule. In addition, in the embodiment of the present application, the power supply for the first load components in the power module is decoupled from the power supply for the second load components in the battery module, so that a high-power power supply is not required, thereby saving the redundant power supply cost of the energy storage submodule.

[0010] In some embodiments, the first main power supply circuit comprises a first main power supply and a first power distribution management module.

[0011] The input end of the first main power supply is connected with the battery bus of the energy storage submodule, the output ends of the first main power supply are respectively connected with the input ends of the first power distribution management module, and the output ends of the first power distribution management module are respectively connected with the plurality of first load components.

[0012] In the embodiment of the present application, the first main power supply can obtain the main power resource from the battery bus of the energy storage submodule, and the first power distribution management module can provide the main power resource for the plurality of first load components, so as to facilitate the normal operation of the plurality of first load components.

[0013] In some embodiments, the first power distribution management module comprises a plurality of first power distribution management units.

[0014] The input end of the first power distribution management unit is connected with the corresponding output end of the first main power supply, and at least one output end of the first power distribution management unit is respectively connected with the corresponding first load component.

[0015] In some embodiments, the first power distribution management unit comprises a first protection branch and at least one first unidirectional conduction branch.

[0016] The input end of the first protection branch is connected with the corresponding output end of the first main power supply, the output end of the first protection branch is respectively connected with the input end of each first unidirectional conduction branch, and the output end of each first unidirectional conduction branch is respectively connected with the corresponding first load component.

[0017] In the embodiment of the present application, the first power distribution management unit can include a first protection branch and at least one first unidirectional conduction branch. Through the combination of the first protection branch and the first unidirectional conduction branch, the first power distribution management unit not only has a short-circuit overcurrent protection function, but also has an anti-backflow function.

[0018] In some embodiments, the first redundant power supply circuit includes a first redundant power supply and a second power distribution management module.

[0019] The input end of the first redundant power supply is a redundant power supply input end of the first redundant power supply circuit, each output end of the first redundant power supply is connected with each input end of the second power distribution management module, and each output end of the second power distribution management module is connected with a plurality of first load components.

[0020] In the embodiment of the present application, the first redundant power supply can provide redundant power resources to the plurality of first load components through the second power distribution management module, which is conducive to improving the operation stability of the plurality of first load components.

[0021] In some embodiments, the second power distribution management module includes a plurality of second power distribution management units.

[0022] The input end of the second power distribution management unit is connected with the corresponding output end of the first redundant power supply, and at least one output end of the second power distribution management unit is connected with a corresponding first load component.

[0023] In some embodiments, the second power distribution management unit includes a second protection branch and at least one second unidirectional conduction branch.

[0024] The input end of the second protection branch is connected with the corresponding output end of the first redundant power supply, the output end of the second protection branch is connected with the input end of each second unidirectional conduction branch, and the output end of each second unidirectional conduction branch is connected with a corresponding first load component.

[0025] In the embodiment of the present application, the second power distribution management unit can include a second protection branch and at least one second unidirectional conduction branch. Through the combination of the second protection branch and the second unidirectional conduction branch, the second power distribution management unit not only has a short-circuit overcurrent protection function, but also has an anti-backflow function.

[0026] In some embodiments, the battery power supply circuit includes a second main power supply circuit and a second redundant power supply circuit.

[0027] The input end of the second main power supply circuit is connected with the corresponding battery cluster, and the output end of the second main power supply circuit is connected with the second load component corresponding to the battery cluster and the second load component corresponding to the second adjacent battery cluster of the battery cluster.

[0028] The input end of the second redundant power supply circuit is connected with the first adjacent battery cluster of the battery cluster, and the output end of the second redundant power supply circuit is connected with the second load component corresponding to the battery cluster and the second load component corresponding to the first adjacent battery cluster.

[0029] In the embodiments of the present application, the second main power supply circuit obtains main electric energy resources from the battery cluster, and can provide the second load component corresponding to the battery cluster with main electric energy resources and can provide the second load component corresponding to the second adjacent battery cluster with redundant electric energy resources, and the second redundant power supply circuit obtains electric energy resources from the first adjacent battery cluster, and can provide the second load component corresponding to the battery cluster with redundant electric energy resources and can provide the second load component corresponding to the first adjacent battery cluster with main electric energy resources, so that the redundant power supply for the second load components corresponding to different battery clusters in the battery module is realized.

[0030] In some embodiments, the second main power supply circuit comprises a second main power supply and a third power distribution management module.

[0031] The input end of the second main power supply is connected with the corresponding battery cluster, the output end of the second main power supply is connected with the input end of the third power distribution management module, and each output end of the third power distribution management module is connected with the second load component corresponding to the battery cluster and the second load component corresponding to the second adjacent battery cluster of the battery cluster.

[0032] In the embodiments of the present application, the second main power supply can obtain main electric energy resources from the corresponding battery cluster, and can provide the second load component corresponding to the battery cluster with main electric energy resources and can provide the second load component corresponding to the second adjacent battery cluster with redundant electric energy resources through the third power distribution management module, which is beneficial to improve the operation stability of the multiple second load components.

[0033] In some embodiments, the third power distribution management module comprises a third protection branch and at least one third unidirectional conduction branch.

[0034] The input end of the third protection branch is connected with the corresponding output end of the second main power supply, the output end of the third protection branch is connected with the input end of each third unidirectional conduction branch, and the output end of each third unidirectional conduction branch is connected with the second load component corresponding to the battery cluster and the second load component corresponding to the second adjacent battery cluster.

[0035] In the embodiments of the present application, the third power distribution management module can include a third protection branch and at least one third unidirectional conduction branch. Through the combination of the third protection branch and the third unidirectional conduction branch, the third power distribution management module not only has a short-circuit overcurrent protection function, but also has an anti-backflow function.

[0036] In some embodiments, the output end of the second main power supply in any battery power supply circuit is also connected with a battery control panel in the energy storage sub-module, so that redundant power resources can be further provided for the battery control panel, which is conducive to meeting the black start demand of the energy storage sub-module.

[0037] In some embodiments, the second redundant power supply circuit includes a second redundant power supply and a fourth power distribution management module.

[0038] The input end of the second redundant power supply is connected with the first adjacent battery cluster, and the output end of the second redundant power supply is connected with the input end of the fourth power distribution management module.

[0039] The output ends of the fourth power distribution management module are respectively connected with the second load components corresponding to the battery cluster and the second load components corresponding to the first adjacent battery cluster.

[0040] In the embodiments of the present application, the second redundant power supply can obtain power resources from the first adjacent battery cluster, and provide redundant power resources for the second load components corresponding to the battery cluster and main power resources for the second load components corresponding to the first adjacent battery cluster through the fourth power distribution management module, which is conducive to improving the operation stability of the multiple second load components.

[0041] In some embodiments, the fourth power distribution management module includes a fourth protection branch and at least one fourth unidirectional conduction branch.

[0042] The input end of the fourth protection branch is connected with the output end corresponding to the second redundant power supply, the output end of the fourth protection branch is respectively connected with the input end of each fourth unidirectional conduction branch, and the output end of each fourth unidirectional conduction branch is respectively connected with the second load components corresponding to the battery cluster and the second load components corresponding to the first adjacent battery cluster.

[0043] In the embodiments of the present application, the fourth power distribution management module can include a fourth protection branch and at least one fourth unidirectional conduction branch. Through the combination of the fourth protection branch and the fourth unidirectional conduction branch, the fourth power distribution management module not only has a short-circuit overcurrent protection function, but also has an anti-backflow function.

[0044] In some embodiments, the output end of the second redundant power supply in the any battery-powered circuit is also connected with the battery control board in the energy storage sub-module, so that the redundant power resource can be further provided for the battery control board, which is conducive to meeting the black start requirement of the energy storage sub-module.

[0045] In some embodiments, in the case that the number of battery clusters in the battery module is even, the first adjacent battery cluster and the second adjacent battery cluster are the same battery cluster.

[0046] In some embodiments, in the case that the number of battery clusters in the battery module is odd, the first adjacent battery cluster and the second adjacent battery cluster of the battery cluster corresponding to the at least one battery-powered circuit are adjacent battery clusters.

[0047] In the second aspect, the application provides an energy storage valve, which comprises an energy storage main trunk circuit and a plurality of energy storage sub-modules according to any one of the energy storage sub-modules in the first aspect; wherein the plurality of energy storage sub-modules are connected with the energy storage main trunk circuit.

[0048] The above description is only a summary of the technical solutions of the application. In order to enable the technical means of the application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the application to be more apparent and easy to understand, the following specific embodiments of the application are described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0049] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Furthermore, the same reference numerals are used throughout the several views that follow. In the drawings:

[0050] Figure 1 Structure diagram of the energy storage sub-module provided for some embodiments of the application;

[0051] Figure 2 Structure diagram of the first main power supply circuit provided for some embodiments of the application;

[0052] Figure 3 Structure diagram of the first power distribution management unit provided for some embodiments of the application;

[0053] Figure 4 Structure diagram of the first power distribution management unit provided for some other embodiments of the application;

[0054] Figure 5 Structure diagram of the first power distribution management module provided for some embodiments of the application;

[0055] Figure 6A structural schematic diagram of a first redundant power supply circuit provided for some embodiments of the present application;

[0056] Figure 7 A structural schematic diagram of a second power distribution management unit provided for some embodiments of the present application;

[0057] Figure 8 A structural schematic diagram of a battery power supply circuit of a battery module provided for some embodiments of the present application;

[0058] Figure 9 A structural schematic diagram of a second main power supply circuit provided for some embodiments of the present application;

[0059] Figure 10 A structural schematic diagram of a third power distribution management module provided for some embodiments of the present application;

[0060] Figure 11 A structural schematic diagram of a second redundant power supply circuit provided for some embodiments of the present application;

[0061] Figure 12 A structural schematic diagram of a fourth power distribution management module provided for some embodiments of the present application;

[0062] Figure 13 A structural schematic diagram of a power supply circuit of a power module provided for some embodiments of the present application;

[0063] Figure 14 A structural schematic diagram of a battery power supply circuit of a battery module provided for some embodiments of the present application;

[0064] Figure 15 A structural schematic diagram of a battery power supply circuit of a battery module provided for some embodiments of the present application;

[0065] Figure 16 A structural schematic diagram of a battery power supply circuit of a battery module provided for some embodiments of the present application;

[0066] Figure 17 A structural schematic diagram of an energy storage valve provided for some embodiments of the present application. DETAILED DESCRIPTION

[0067] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the description and claims of this application as well as the above abstract are intended to cover all alternatives, modifications, and equivalents thereof in accordance with the scope of the application. Unless defined otherwise, all technical and scientific terms and any acronyms used herein have the same meanings as commonly understood by one of ordinary skill in the art in the field of the application. Any methods and materials similar or equivalent to those described herein can be used in the practice of this application. The description and examples are intended to be illustrative, and not in limitation. The following terms are used throughout the specification and claims.

[0069] In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more (including two), unless otherwise explicitly and specifically limited. It needs to be understood that the directions or positional relationships indicated by the terms "front", "back" and the like are based on the directions or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the embodiments of the present application.

[0070] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0071] The energy storage valve involved in the embodiments of the present application can include but is not limited to a cascade high-pressure energy storage valve.

[0072] The embodiments of the present application provide that, on the one hand, the first main power supply circuit obtains main power resources from the battery busbar of the energy storage sub-module, and can provide main power resources for a plurality of first load components, and the first redundant power supply circuit provides redundant power resources for the plurality of first load components in the manner of obtaining redundant power resources, thereby achieving redundant power supply for each first load component in the power module. On the other hand, the battery power supply circuit obtains main power resources from the corresponding battery cluster and redundant power resources from the first adjacent battery cluster of the battery cluster, and can provide main power resources and redundant power resources for the second load component corresponding to the battery cluster, thereby achieving redundant power supply for the second load component in the battery module. It can be seen that the embodiments of the present application achieve redundant power supply for each load component in the energy storage sub-module, thereby facilitating improvement of the power supply reliability of the energy storage sub-module.

[0073] In some embodiments, Figure 1 The structural schematic diagram of the energy storage sub-module provided by some embodiments of the present application is as follows: Figure 1As shown, the energy storage sub-module in the embodiments of the present application can include, but is not limited to, a power module 10, a battery module 11 and a power supply circuit 12.

[0074] The power module 10 in the embodiments of the present application can include, but is not limited to, a plurality of first load components 101. The exemplary first load component 101 can include, but is not limited to, at least one of the following: a power module switch, a power module control board, a power module drive board card, an isolation switch, an isolation switch control board, a battery control board.

[0075] The battery module 11 in the embodiments of the present application can include, but is not limited to, a plurality of interconnected battery clusters 111 and a second load component 112. Exemplarily, the second load component 112 can include, but is not limited to, a master control box corresponding to the battery cluster 111.

[0076] The power supply circuit 12 in the embodiments of the present application can include, but is not limited to, a first main power supply circuit 121 of the power module 10, a first redundant power supply circuit 122 of the power module 10, and at least one battery power supply circuit 123 corresponding to the battery module 11.

[0077] The input end of the first main power supply circuit 121 in the embodiments of the present application can be connected with the battery bus end B (or referred to as the battery bus side busbar) of the energy storage sub-module, and the output end of the first main power supply circuit 121 can be connected with a plurality of first load components 101 respectively. Exemplarily, the battery bus end B in the embodiments of the present application can include, but is not limited to, a position between the bus cabinet switch and the battery module in the energy storage sub-module.

[0078] Exemplarily, the output end of the first main power supply circuit 121 can have a plurality of output ends, each of which can be connected with a corresponding first load component 101, so as to flexibly control the power supply state of each first load component 101. Further exemplarily, the output end of the first main power supply circuit 121 can have one or more output ends, each of which can be connected with a corresponding plurality of first load components 101, so as to save the number of output ends.

[0079] As can be seen, in the embodiments of the present application, the first main power supply circuit 121 can obtain main electric energy resources from the battery bus end B of the energy storage sub-module, and can provide main electric energy resources for a plurality of first load components 101.

[0080] In some embodiments, the output end of the first main power supply circuit 121 in the embodiments of the present application can also be connected with the input end of the first redundant power supply circuit of the power module in the first adjacent energy storage sub-module of the energy storage sub-module, so that the first main power supply circuit 121 can also provide redundant electric energy resources for the first redundant power supply circuit of the power module in the adjacent energy storage sub-module.

[0081] The input end of the first redundant power supply circuit 122 in the embodiment of the present application can be the redundant power supply input end Pr of the first redundant power supply circuit 122. For example, the input end of the first redundant power supply circuit 122 can be connected with the output end of the first main power supply circuit of the power module in the second adjacent energy storage submodule of the energy storage submodule, so that the redundant power resource can be obtained from the first main power supply circuit of the power module in the second adjacent energy storage submodule.

[0082] It should be noted that the first adjacent energy storage submodule and the second adjacent energy storage submodule in the embodiment of the present application can be the same energy storage submodule, or can be different energy storage submodules.

[0083] For example, in the case that the number of energy storage submodules is even, the first adjacent energy storage submodule and the second adjacent energy storage submodule can be the same energy storage submodule, that is, the two energy storage submodules in the embodiment of the present application can supply power to each other redundantly.

[0084] For another example, in the case that the number of energy storage submodules is odd, the first adjacent energy storage submodule and the second adjacent energy storage submodule can be adjacent energy storage submodules, that is, the three energy storage submodules in the embodiment of the present application can supply power to each other in a ring shape.

[0085] The output end of the first redundant power supply circuit 122 in the embodiment of the present application can be connected with a plurality of first load components 101. For example, the output end of the first redundant power supply circuit 122 can be multiple, and each output end can be connected with a corresponding first load component 101, so that the power supply state of each first load component 101 can be flexibly controlled. For another example, the output end of the first redundant power supply circuit 122 can be one or more, and each output end can be connected with a plurality of corresponding first load components 101, so that the number of output ends can be saved.

[0086] It can be seen that in the embodiment of the present application, the first redundant power supply circuit 122 can provide redundant power resources for a plurality of first load components 101 by obtaining redundant power resources.

[0087] The input end of the battery power supply circuit 123 in the embodiment of the present application can be connected with a corresponding battery cluster and a first adjacent battery cluster of the battery cluster, so that the battery power supply circuit 123 can obtain main power resources from the corresponding battery cluster and redundant power resources from the first adjacent battery cluster.

[0088] The output end of the battery power supply circuit 123 in the embodiment of the present application can be connected with the second load component 112 corresponding to the battery cluster, so that the main power resources and the redundant power resources can be provided for the second load component 112 corresponding to the battery cluster.

[0089] It can be seen that in the embodiment of the present application, the battery power supply circuit 123 can obtain the main power resource from the corresponding battery cluster and the redundant power resource from the first adjacent battery cluster of the battery cluster, and can provide the main power resource and the redundant power resource for the second load component corresponding to the battery cluster, thereby realizing the redundant power supply for the second load component in the battery module.

[0090] In summary, in the embodiment of the present application, the energy storage submodule can include a power module, a battery module and a power supply circuit; wherein the power module includes a plurality of first load components, the battery module includes a plurality of interconnected battery clusters and a second load component; the power supply circuit includes a first main power supply circuit of the power module, a first redundant power supply circuit of the power module and at least one battery power supply circuit corresponding to the battery module. Wherein the input end of the first main power supply circuit is connected with the battery bus end of the energy storage submodule, and the output end of the first main power supply circuit is connected with the plurality of first load components respectively. The input end of the first redundant power supply circuit is the redundant power supply input end of the first redundant power supply circuit, and the output end of the first redundant power supply circuit is connected with the plurality of first load components. The input end of the battery power supply circuit is connected with the corresponding battery cluster and the first adjacent battery cluster of the battery cluster respectively, and the output end of the battery power supply circuit is connected with the second load component corresponding to the battery cluster. It can be seen that in the embodiment of the present application, on the one hand, the first main power supply circuit obtains the main power resource from the battery bus end of the energy storage submodule, and can provide the main power resource for the plurality of first load components, and the first redundant power supply circuit provides the redundant power resource for the plurality of first load components in the form of the redundant power resource obtained, thereby realizing the redundant power supply for each first load component in the power module. On the other hand, the battery power supply circuit obtains the main power resource from the corresponding battery cluster and the redundant power resource from the first adjacent battery cluster of the battery cluster, and can provide the main power resource and the redundant power resource for the second load component corresponding to the battery cluster, thereby realizing the redundant power supply for the second load component in the battery module. It can be seen that the embodiment of the present application realizes the redundant power supply for each load component in the energy storage submodule, thereby facilitating to improve the power supply reliability of the energy storage submodule. In addition, in the embodiment of the present application, the power supply of the first load component in the power module is decoupled from the power supply of the second load component in the battery module, so that a large power supply is not needed, thereby saving the redundant power supply cost of the energy storage submodule.

[0091] In some embodiments, Figure 2 For the structure schematic diagram of the first main power supply circuit provided by some embodiments of the present application, the related content of the above-mentioned first main power supply circuit 121 is exemplarily introduced and described. As shown in Figure 2 The first main power supply circuit 121 of the embodiment of the present application can include but is not limited to a first main power supply 1211 and a first power distribution management module 1212.

[0092] The input end of the first main power supply 1211 in the embodiment of the present application can be connected with the battery bus end B of the energy storage submodule, each output end of the first main power supply 1211 can be connected with each input end of the first power distribution management module 1212 respectively, and each output end of the first power distribution management module 1212 can be connected with a plurality of first load components respectively. For example, the number of output ends of the first main power supply 1211 can be greater than or equal to the number of input ends of the first power distribution management module 1212, and the output ends of the first main power supply 1211 and the input ends of the first power distribution management module 1212 can be connected one by one.

[0093] It can be seen that in the embodiment of the present application, the first main power supply 1211 can obtain main power resources from the battery bus end B of the energy storage submodule, and the first power distribution management module 1212 can provide main power resources for a plurality of first load components respectively, so as to facilitate the normal operation of the plurality of first load components.

[0094] In some embodiments, the output end of the first main power supply 1211 of the embodiment of the present application can also be connected with the input end of the first redundant power supply circuit of the power module in the first adjacent energy storage submodule of the energy storage submodule, so that the first main power supply 1211 can also provide redundant power resources for the first redundant power supply circuit of the power module in the adjacent energy storage submodule.

[0095] In some embodiments, the first power distribution management module 1212 of the embodiment of the present application can perform power supply management processing on the power resources input by each input end of the first power distribution management module 1212 respectively, so that the power resources meeting the power requirements of the corresponding first load components can be output through each output end.

[0096] For example, the first power distribution management module 1212 can perform power supply management processing such as voltage adjustment and / or current adjustment on the power resources input by each input end of the first power distribution management module 1212 respectively, so that the power resources meeting the power requirements of the corresponding first load components can be output through each output end.

[0097] In some embodiments, the first power distribution management module 1212 of the embodiment of the present application also has an anti-backflow function, so that the power resources can be transmitted from the first power distribution management module 1212 to the first load components, but not transmitted from the first load components to the first power distribution management module 1212, which is beneficial to protect the first power distribution management module 1212.

[0098] In some embodiments, the first power distribution management module 1212 of the embodiments of the present application further has a short-circuit overcurrent protection function, that is, in the case of a short-circuit overcurrent, the first power distribution management module 1212 can be switched to a disconnected state, so that the short-circuit current will not be transmitted to the first load component, thereby facilitating the protection of the first load component.

[0099] In some embodiments, for the convenience of understanding, the first power distribution management module is further introduced in the following embodiments of the present application.

[0100] As shown in Figure 2 the first power distribution management module 1212 of the embodiments of the present application can include but is not limited to a plurality of first power distribution management units U1. For example, each first power distribution management unit U1 has a power supply management processing function, an anti-backflow function, and / or a short-circuit overcurrent protection function.

[0101] The input end of the first power distribution management unit U1 in the embodiments of the present application can be connected with the output end corresponding to the first main power supply 1211, and at least one output end of the first power distribution management unit U1 can be connected with a corresponding first load component (for the convenience of illustration, Figure 2 one output end is exemplified in the figure).

[0102] For example, in the case of a switch type component as the first load component, the voltage level of the electric energy resource output by the output end of the first power distribution management unit U1 corresponding to the first load component can include but is not limited to 400V.

[0103] For example, in the case of a switch type component as the first load component, the voltage level of the electric energy resource output by the output end of the first power distribution management unit U1 corresponding to the first load component can include but is not limited to 400V.

[0104] For example, in the case of a switch type component as the first load component, the voltage level of the electric energy resource output by the output end of the first power distribution management unit U1 corresponding to the first load component can include but is not limited to 400V.

[0105] It should be understood that the electric parameters of the electric energy resources output by different output ends of the same first power distribution management unit U1 are the same.

[0106] In some embodiments, Figure 3 For the structure schematic diagram of the first power distribution management unit provided by some embodiments of the present application, the above-mentioned related contents of the first power distribution management unit U1 are exemplarily introduced by the embodiments of the present application. As shown in Figure 3 the first power distribution management unit U1 can include but is not limited to a first protection branch U11 and at least one first unidirectional conduction branch U12.

[0107] In the embodiment of the present application, the input end of the first protection branch U11 can be connected to the output end corresponding to the first main power supply 1211, the output end of the first protection branch U11 can be respectively connected to the input end of each first unidirectional conduction branch U12, and the output end of each first unidirectional conduction branch U12 can be respectively connected to the corresponding first load component.

[0108] In some embodiments, the first protection branch U11 in the embodiment of the present application can be switched to a disconnected state when the current is greater than a first preset current threshold (i.e., there is a short circuit overcurrent), so that the first power distribution management unit U1 has a short circuit overcurrent protection function.

[0109] Exemplarily, the first protection branch U11 may include but is not limited to a fuse or a relay.

[0110] In some embodiments, the first unidirectional conduction branch U12 in the embodiments of the present application has a unidirectional conduction function, so that the first power distribution management unit U1 has an anti-backflow function.

[0111] Exemplarily, the first unidirectional conducting branch U12 may include but is not limited to any one of the following: a diode, a metal-oxide-semiconductor field-effect transistor (MOSFET), and an ideal diode circuit.

[0112] For ease of understanding, in the following embodiments of the present application, the first power distribution management unit U1 is taken as an example, in which the first protection branch U1 includes a first protection branch U11 and two first unidirectional conduction branches U12, and the first protection branch U11 includes a relay K and the first unidirectional conduction branch U12 includes a diode D, to provide an exemplary introduction to the relevant structure of the first power distribution management unit U1.

[0113] Figure 4 This is a structural diagram of the first power distribution management unit provided in some other embodiments of the present application, such as Figure 4 As shown, the first end of the relay K (the input end of the first protection branch U11) is connected to the output end corresponding to the first main power supply, and the second end of the relay K (the output end of the first protection branch U11) is respectively connected to the positive poles of the two diodes D (the input ends of the corresponding first unidirectional conduction branch U12), and the negative pole of each diode D (the output end of the corresponding first unidirectional conduction branch U12) can be respectively connected to the corresponding first load component.

[0114] For ease of understanding, in the following embodiment, the first power distribution management module 1212 includes three first power distribution management units U1 and the first power distribution management unit U1 adopts the following method: Figure 4The structure shown is an example, and the structure of the first power distribution management module 1212 is described by way of example.

[0115] Figure 5 The structure of the first power distribution management module provided in some embodiments of the present application is shown in FIG. 12A. Figure 5 As shown in FIG. 12A, the first end of the relay K in each first power distribution management unit U1 (which is the input end of the corresponding first protection branch U11 and also the input end of the corresponding first power distribution management unit U1) can be connected to the output end of the corresponding first main power supply, and the negative electrode of each diode D in each first power distribution management unit U1 (which is the output end of the corresponding first unidirectional conduction branch U12 and also the output end of the corresponding first power distribution management unit U1) can be connected to the corresponding first load component.

[0116] It should be noted that the electrical parameters of the diodes D in different first power distribution management units U1 are different, so that the electrical parameters of the electrical energy resources output by the output ends of different first power distribution management units U1 are different.

[0117] In summary, in the embodiments of the present application, the first power distribution management unit can include a first protection branch and at least one first unidirectional conduction branch. Through the combination of the first protection branch and the first unidirectional conduction branch, the first power distribution management unit not only has a short-circuit overcurrent protection function, but also has an anti-backflow function.

[0118] In some embodiments, Figure 6 The structure of the first redundant power supply circuit provided in some embodiments of the present application is shown in FIG. 13A, and the related content of the first redundant power supply circuit is described by way of example. As shown in FIG. 13A, Figure 6 The first redundant power supply circuit 122 in the embodiments of the present application can include but is not limited to a first redundant power supply 1221 and a second power distribution management module 1222.

[0119] The input end of the first redundant power supply 1221 in the embodiments of the present application can be a redundant power supply input end Pr of the first redundant power supply circuit 122. For example, the input end of the first redundant power supply 1221 can be connected to the output end of the first main power supply circuit of the power module in the second adjacent energy storage sub-module, so that redundant electrical energy resources can be obtained from the first main power supply circuit of the power module in the second adjacent energy storage sub-module.

[0120] The output ends of the first redundant power supply 1221 in the embodiments of the present application can be respectively connected to the input ends of the second power distribution management module 1222, and the output ends of the second power distribution management module 1222 can be respectively connected to a plurality of first load components.

[0121] Illustratively, the number of output terminals of the first redundant power supply 1221 may be equal to the number of input terminals of the second power distribution management module 1222 , and the output terminals of the first redundant power supply 1221 may be connected to the input terminals of the second power distribution management module 1222 in a one-to-one correspondence.

[0122] It can be seen that in the embodiment of the present application, the first redundant power supply 1221 can use the second power distribution management module 1222 to provide redundant power resources to multiple first load components, which is beneficial to improving the operating stability of multiple first load components.

[0123] In some embodiments, the second power distribution management module 1222 can perform power supply management processing on the electric energy resources input to each input end of the second power distribution management module 1222 respectively, so that the electric energy resources that meet the power requirements of the corresponding first load component can be output through each output end.

[0124] Exemplarily, the second power distribution management module 1222 can perform power supply management processing such as voltage adjustment and / or current adjustment on the electric energy resources input into each input end of the second power distribution management module 1222, so that electric energy resources that meet the power requirements of the corresponding first load component can be output through each output end.

[0125] In some embodiments, the second power distribution management module 1222 of the embodiment of the present application also has an anti-backflow function, so that electric energy resources can be transmitted from the second power distribution management module 1222 to the first load component, but will not be transmitted back from the first load component to the second power distribution management module 1222, which is beneficial to protecting the second power distribution management module 1222.

[0126] In some embodiments, the second power distribution management module 1222 of the embodiment of the present application also has a short-circuit overcurrent protection function, that is, when a short-circuit overcurrent occurs, the second power distribution management module 1222 can be switched to a disconnected state so that the short-circuit current will not be transmitted to the first load component, thereby helping to protect the first load component.

[0127] In some embodiments, for ease of understanding, the second power distribution management module is further introduced and explained in the following embodiments of this application.

[0128] like Figure 6 As shown, the second power distribution management module 1222 of the embodiment of the present application may include but is not limited to multiple second power distribution management units U2. Exemplarily, each second power distribution management unit U2 has a power supply management processing function, a backflow prevention function, and / or a short circuit overcurrent protection function.

[0129] The input end of the second power distribution management unit U2 in the embodiments of the present application can be connected with the output end corresponding to the first redundant power supply 1221, and at least one output end of the second power distribution management unit U2 can be connected with the corresponding first load component respectively (for the convenience of illustration, Figure 6 The output end of the second power distribution management unit U2 in the embodiments of the present application is exemplified as an output end.

[0130] For example, the output ends of different second power distribution management units U2 in the embodiments of the present application output electric energy resources with different electric parameters, so as to meet the first load components with different power consumption demands. The electric parameters can include but are not limited to voltage parameters and / or current parameters.

[0131] It should be understood that the electric parameters of the electric energy resources output by different output ends of the same second power distribution management unit U2 are the same.

[0132] In some embodiments, Figure 7 The structure of the second power distribution management unit provided in some embodiments of the present application is schematically shown, and the related content of the above-mentioned second power distribution management unit U2 is exemplarily introduced and described in the embodiments of the present application. As shown in Figure 7 The second power distribution management unit U2 can include but is not limited to a second protection branch U21 and at least one second unidirectional conduction branch U22.

[0133] The input end of the second protection branch U21 in the embodiments of the present application can be connected with the output end corresponding to the first redundant power supply 1221, the output end of the second protection branch U21 can be connected with the input end of each second unidirectional conduction branch U22 respectively, and the output end of each second unidirectional conduction branch U22 can be connected with the corresponding first load component.

[0134] In some embodiments, the second protection branch U21 in the embodiments of the present application can be switched to the open state when the current is greater than the second preset current threshold (i.e. there is a short-circuit overcurrent), so that the second power distribution management unit U2 has a short-circuit overcurrent protection function.

[0135] For example, the second protection branch U21 can include but is not limited to a fuse or a relay.

[0136] In some embodiments, the second unidirectional conduction branch U22 in the embodiments of the present application has a unidirectional conduction function, so that the second power distribution management unit U2 has an anti-backflow function.

[0137] For example, the second unidirectional conduction branch U22 can include but is not limited to any one of the following: a diode, a MOSFET, and an ideal diode circuit.

[0138] It should be noted that the implementation manner of the second protection branch in the embodiments of the present application can refer to the related content of the first protection branch, and the implementation manner of the second unidirectional conduction branch can refer to the related content of the first unidirectional conduction branch, which will not be described here.

[0139] In summary, in the embodiments of the present application, the second power distribution management unit can include a second protection branch and at least one second unidirectional conduction branch. Through the combination of the second protection branch and the second unidirectional conduction branch, the second power distribution management unit not only has a short-circuit overcurrent protection function, but also has an anti-backflow function.

[0140] In some embodiments, Figure 8 For the structural schematic diagram of the battery power supply circuit of some embodiments of the present application, in order to facilitate understanding, in the embodiments of the present application, the battery module includes a battery cluster, a second load component corresponding to the battery cluster, a first adjacent battery cluster, a second load component corresponding to the first adjacent battery cluster, a second adjacent battery cluster, and a second load component corresponding to the second adjacent battery cluster. The related content of the above battery power supply circuit 123 is exemplarily introduced and described. As shown in Figure 8 The battery power supply circuit 123 of the embodiments of the present application can include a second main power supply circuit 1231 and a second redundant power supply circuit 1232.

[0141] The input end of the second main power supply circuit 1231 in the embodiments of the present application can be connected with the corresponding battery cluster, so that the second main power supply circuit 1231 can obtain main electric energy resources from the corresponding battery cluster.

[0142] The output end of the second main power supply circuit 1231 in the embodiments of the present application can be connected with the second load component 112 corresponding to the battery cluster and the second load component corresponding to the second adjacent battery cluster of the battery cluster, respectively, so as to provide main electric energy resources for the second load component 112 corresponding to the battery cluster and redundant electric energy resources for the second load component corresponding to the second adjacent battery cluster.

[0143] Exemplarily, the output end of the second main power supply circuit 1231 can have multiple output ends, each output end can be connected with a corresponding second load component, so as to flexibly control the power supply state of each second load component. Further exemplarily, the output end of the second main power supply circuit 1231 can have one output end, and the output end can be connected with a plurality of corresponding second load components, so as to save the number of output ends.

[0144] It can be seen that in the embodiment of the present application, the second main power supply circuit 1231 can obtain main power resources from the corresponding battery cluster, and can provide the second load component 112 corresponding to the battery cluster with main power resources and can provide the second load component corresponding to the second adjacent battery cluster with redundant power resources.

[0145] The input end of the second redundant power supply circuit 1232 in the embodiment of the present application can be connected with the first adjacent battery cluster, so as to obtain power resources from the first adjacent battery cluster. It should be understood that for the second load component 112 corresponding to the battery cluster, the power resources obtained by the second redundant power supply circuit 1232 from the first adjacent battery cluster are redundant power resources; for the second load component corresponding to the first adjacent battery cluster, the power resources obtained by the second redundant power supply circuit 1232 from the first adjacent battery cluster are main power resources.

[0146] The output end of the second redundant power supply circuit 1232 in the embodiment of the present application can be connected with the second load component 112 corresponding to the battery cluster and the second load component corresponding to the first adjacent battery cluster respectively, so as to provide the second load component 112 corresponding to the battery cluster with redundant power resources and provide the second load component corresponding to the first adjacent battery cluster with main power resources.

[0147] It can be seen that in the embodiment of the present application, on the one hand, the second main power supply circuit obtains main power resources from the battery cluster, and can provide the second load component corresponding to the battery cluster with main power resources and can provide the second load component corresponding to the second adjacent battery cluster with redundant power resources, and on the other hand, the second redundant power supply circuit obtains power resources from the first adjacent battery cluster, and can provide the second load component corresponding to the battery cluster with redundant power resources and can provide the second load component corresponding to the first adjacent battery cluster with main power resources, thereby realizing redundant power supply for the second load components corresponding to different battery clusters in the battery module.

[0148] It should be noted that the first adjacent battery cluster and the second adjacent battery cluster in the embodiment of the present application can be the same battery cluster, or can be different battery clusters.

[0149] In some embodiments, when the number of battery clusters in the battery module is even, the first adjacent battery cluster and the second adjacent battery cluster can be the same battery cluster, that is, the two battery clusters in the embodiment of the present application can mutually redundantly supply power.

[0150] In some embodiments, in the case that the number of battery clusters in the battery module is odd, the first adjacent battery cluster and the second adjacent battery cluster of the battery cluster corresponding to the at least one battery power supply circuit can be adjacent battery clusters, that is, the three battery clusters (for example, battery cluster i, the first adjacent battery cluster and the second adjacent battery cluster of battery cluster i) in the embodiments of the present application can be ring-shaped redundant power supply.

[0151] In some embodiments, Figure 9 For the structural schematic diagram of the second main power supply circuit provided in some embodiments of the present application, the related content of the above-mentioned second main power supply circuit 1231 is exemplarily introduced and described in the embodiments of the present application. As shown in Figure 9 The second main power supply circuit 1231 in the embodiments of the present application can include but is not limited to a second main power supply 1231A and a third power distribution management module 1231B.

[0152] The input end of the second main power supply 1231A in the embodiments of the present application can be connected with the corresponding battery cluster, so that the main power resource can be obtained from the corresponding battery cluster.

[0153] The output end of the second main power supply 1231A in the embodiments of the present application can be connected with the input end of the third power distribution management module 1231B, and each output end of the third power distribution management module can be respectively connected with the second load component corresponding to the battery cluster and the second load component corresponding to the second adjacent battery cluster of the battery cluster, so as to provide the main power resource for the second load component 112 corresponding to the battery cluster and provide the redundant power resource for the second load component corresponding to the second adjacent battery cluster.

[0154] It can be seen that in the embodiments of the present application, the second main power supply can obtain the main power resource from the corresponding battery cluster, and provide the main power resource for the second load component corresponding to the battery cluster and provide the redundant power resource for the second load component corresponding to the second adjacent battery cluster through the third power distribution management module, which is beneficial to improve the operation stability of the plurality of second load components.

[0155] In some embodiments, the output end of the second main power supply 1231A in any battery power supply circuit in the embodiments of the present application can also be connected with the battery control panel in the energy storage sub-module, so as to further provide the redundant power resource for the battery control panel, which is beneficial to meet the black start demand of the energy storage sub-module. Wherein, the black start is an important concept in the power system, which refers to the process of gradually restoring the system operation through the power supply with self-starting capability in the system after the power system is completely shut down due to failure or other reasons. This process does not depend on the help of other power networks, which is equivalent to a self-restart of the system.

[0156] In some embodiments, the third power distribution management module 1231B can perform power supply management processing on the power resources input to the input end of the third power distribution management module 1231B, so that the power resources meeting the power consumption requirements of the corresponding second load components can be output through the output ends.

[0157] For example, the third power distribution management module 1231B can perform power supply management processing such as voltage adjustment and / or current adjustment on the power resources input to the input end of the third power distribution management module 1231B, so that the power resources meeting the power consumption requirements of the corresponding second load components can be output through the output ends.

[0158] In some embodiments, the third power distribution management module 1231B of the embodiments of the present application also has an anti-backflow function, so that the power resources can be transmitted from the third power distribution management module 1231B to the second load components, but not transmitted from the second load components to the third power distribution management module 1231B, which is beneficial to protect the third power distribution management module 1231B.

[0159] In some embodiments, for the convenience of understanding, the third power distribution management module 1231B is further introduced in the following embodiments of the present application.

[0160] In some embodiments, Figure 10 The structure schematic diagram of the third power distribution management module provided by some embodiments of the present application is shown in the following figure. Figure 10 As shown in the figure, the third power distribution management module 1231B can include but is not limited to a third protection branch U31 and at least one third unidirectional conduction branch U32.

[0161] The input end of the third protection branch U31 in the embodiments of the present application can be connected with the output end corresponding to the second main power supply 1231A, the output end of the third protection branch U31 can be connected with the input end of each third unidirectional conduction branch U32 respectively, and the output end of each third unidirectional conduction branch U32 can be connected with the second load components corresponding to the battery cluster and the second load components corresponding to the second adjacent battery cluster respectively.

[0162] In some embodiments, the third protection branch U31 in the embodiments of the present application can be switched to the open state when the current is greater than the third preset current threshold (i.e., there is a short-circuit overcurrent), so that the third power distribution management module 1231B has a short-circuit overcurrent protection function.

[0163] For example, the third protection branch U31 can include but is not limited to a fuse or a relay.

[0164] In some embodiments, the third unidirectional conducting branch U32 in the embodiments of the present application has a unidirectional conducting function, so that the third power distribution management module 1231B has an anti-backflow function.

[0165] For example, the third unidirectional conducting branch U32 can include but is not limited to any of the following: a diode, a MOSFET, and an ideal diode circuit.

[0166] It should be understood that the implementation of the third power distribution management module in the embodiments of the present application can refer to the related content of the first power distribution management unit described above, which will not be repeated here.

[0167] It should be noted that the implementation of the third protection branch in the embodiments of the present application can refer to the related content of the first protection branch described above, and the implementation of the third unidirectional conducting branch can refer to the related content of the first unidirectional conducting branch described above, which will not be repeated here.

[0168] In summary, in the embodiments of the present application, the third power distribution management module can include a third protection branch and at least one third unidirectional conducting branch. Through the combination of the third protection branch and the third unidirectional conducting branch, the third power distribution management module not only has a short-circuit overcurrent protection function, but also has an anti-backflow function.

[0169] In some embodiments, Figure 11 The structure diagram of the second redundant power supply circuit provided in some embodiments of the present application is shown in FIG. 12. The embodiments of the present application exemplarily introduce and describe the related content of the second redundant power supply circuit 1232 described above. As shown in FIG. 12, the second redundant power supply circuit 1232 in the embodiments of the present application can include a second redundant power supply 1232A and a fourth power distribution management module 1232B. Figure 11

[0170] The input end of the second redundant power supply 1232A in the embodiments of the present application can be connected with the first adjacent battery cluster, so as to obtain electrical energy resources from the first adjacent battery cluster.

[0171] The output end of the second redundant power supply 1232A in the embodiments of the present application can be connected with the input end of the fourth power distribution management module 1232B, and each output end of the fourth power distribution management module 1232B can be connected with the second load component corresponding to the battery cluster and the second load component corresponding to the first adjacent battery cluster, respectively, so as to provide redundant electrical energy resources for the second load component 112 corresponding to the battery cluster and provide main electrical energy resources for the second load component corresponding to the first adjacent battery cluster.

[0172] ​It can be seen that, in the embodiment of the application, the second redundant power supply can obtain power resources from the first adjacent battery cluster, and provide redundant power resources for the second load components corresponding to the battery cluster through the fourth power distribution management module, and can provide main power resources for the second load components corresponding to the first adjacent battery cluster, which is beneficial to improve the operation stability of the plurality of second load components.

[0173] In some embodiments, the output end of the second redundant power supply 1232A in any battery power supply circuit in the embodiment of the application can also be connected with the battery control panel in the energy storage submodule, so that redundant power resources can be further provided for the battery control panel, which is beneficial to meet the black start demand of the energy storage submodule.

[0174] In some embodiments, the fourth power distribution management module 1232B can perform power supply management processing on the power resources input into the input end of the fourth power distribution management module 1232B, so that the power resources meeting the power consumption requirements of the corresponding second load components can be output through the output ends.

[0175] For example, the fourth power distribution management module 1232B can perform power supply management processing such as voltage adjustment and / or current adjustment on the power resources input into the input end of the fourth power distribution management module 1232B, so that the power resources meeting the power consumption requirements of the corresponding second load components can be output through the output ends.

[0176] In some embodiments, the fourth power distribution management module 1232B of the embodiment of the application also has an anti-backflow function, so that the power resources can be transmitted from the fourth power distribution management module 1232B to the second load components, but not transmitted from the second load components to the fourth power distribution management module 1232B, which is beneficial to protect the fourth power distribution management module 1232B.

[0177] In some embodiments, in order to facilitate understanding, the fourth power distribution management module 1232B is further introduced in the following embodiments of the application.

[0178] In some embodiments, Figure 12 The structure of the fourth power distribution management module provided in some embodiments of the application is schematically shown in the embodiment of the application. As shown in Figure 12 The fourth power distribution management module 1232B can include but is not limited to a fourth protection branch U41 and at least one fourth unidirectional conduction branch U42.

[0179] The input end of the fourth protection branch U41 in the embodiment of the present application can be connected with the output end corresponding to the second redundant power supply 1232A, the output end of the fourth protection branch U41 can be connected with the input end of each fourth unidirectional conduction branch U42 respectively, and the output end of each fourth unidirectional conduction branch U42 can be connected with the second load component corresponding to the battery cluster and the second load component corresponding to the first adjacent battery cluster respectively.

[0180] In some embodiments, the fourth protection branch U41 in the embodiment of the present application can be switched to the open state in the case that the current is greater than the fourth preset current threshold (i.e. short-circuit overcurrent exists), so that the fourth power distribution management module 1232B has a short-circuit overcurrent protection function.

[0181] Exemplarily, the fourth protection branch U41 can include but is not limited to a fuse or a relay.

[0182] In some embodiments, the fourth unidirectional conduction branch U42 in the embodiment of the present application has a unidirectional conduction function, so that the fourth power distribution management module 1232B has an anti-backflow function.

[0183] Exemplarily, the fourth unidirectional conduction branch U42 can include but is not limited to any one of the following: a diode, a MOSFET, and an ideal diode circuit.

[0184] It should be understood that the implementation of the fourth power distribution management module in the embodiment of the present application can refer to the related content of the first power distribution management unit described above, which will not be described here again.

[0185] It should be noted that the implementation of the fourth protection branch in the embodiment of the present application can refer to the related content of the first protection branch described above, and the implementation of the fourth unidirectional conduction branch can refer to the related content of the first unidirectional conduction branch described above, which will not be described here again.

[0186] In summary, in the embodiment of the present application, the fourth power distribution management module can include a fourth protection branch and at least one fourth unidirectional conduction branch, and through the combination of the fourth protection branch and the fourth unidirectional conduction branch, the fourth power distribution management module not only has a short-circuit overcurrent protection function, but also has an anti-backflow function.

[0187] In some embodiments, on the basis of the above-mentioned embodiments, the first load component in the embodiment of the present application includes: a power module switch, a power module control board, a power module drive board card, an isolation switch, an isolation switch control board, and a battery control board, which are taken as examples to further introduce and describe the first main power supply circuit 121 of the power module and the first redundant power supply circuit 122 of the power module.

[0188] Figure 13A structural schematic diagram of a power supply circuit of a power module provided for some embodiments of the present application is shown in Figure 13 As shown, the power module of the embodiments of the present application can include a power module switch 1011, a power module control board 1012, a power module drive board card 1013, an isolation switch 1014, an isolation switch control board 1015, and a battery control board 1016.

[0189] For example, the power supply circuit of the power module in the embodiments of the present application can include but is not limited to a first main power supply circuit 121 and a first redundant power supply circuit 122.

[0190] The first main power supply circuit 121 in the embodiments of the present application can include a first main power supply 1211 and a first power distribution management module 1212.

[0191] For example, the input end of the first main power supply 1211 in the embodiments of the present application can be connected with the battery bus end B of the energy storage sub-module, so that the main power resource can be obtained from the battery bus end B of the energy storage sub-module.

[0192] For example, the first output end of the first main power supply 1211 in the embodiments of the present application provides main power resource for the power module switch 1011 and the isolation switch 1014 through the first power distribution management module 1212, the second output end of the first main power supply 1211 provides main power resource for the power module control board 1012 and the battery control board 1016 through the first power distribution management module 1212, the third output end of the first main power supply 1211 provides main power resource for the power module drive board card 1013 and the isolation switch control board 1016 through the first power distribution management module 1212, and the fourth output end of the first main power supply 1211 can provide redundant power resource for the first redundant power supply circuit of the power module in the first adjacent energy storage sub-module through the first power distribution management module 1212.

[0193] The first redundant power supply circuit 122 in the embodiments of the present application can include a first redundant power supply 1221 and a second power distribution management module 1222.

[0194] For example, the input end of the first redundant power supply 1221 in the embodiments of the present application can be connected with the output end of the first main power supply circuit of the power module in the second adjacent energy storage sub-module of the energy storage sub-module, so that the redundant power resource can be obtained from the first main power supply circuit of the power module in the second adjacent energy storage sub-module.

[0195] Exemplarily, the first output end of the first redundant power supply 1221 provides redundant power resource for the power module switch 1011 and the disconnector 1014 through the second power distribution management module 1222, the second output end of the first redundant power supply 1221 provides redundant power resource for the power module control board 1012 and the battery control board 1016 through the second power distribution management module 1222, and the third output end of the first redundant power supply 1221 provides redundant power resource for the power module drive board card 1013 and the disconnector control board 1016 through the second power distribution management module 1222.

[0196] To sum up, in the embodiment of the application, the first main power supply of the power module obtains main power resource from the battery bus end B, the output ends of the first main power supply output power resource of different electrical parameter levels through the first power distribution management module to provide main power resource for different first load components, and provide redundant power resource for the first redundant power supply circuit of the power module in the adjacent energy storage sub-module. In addition, the first redundant power supply of the power module obtains redundant power resource from the first main power supply circuit of the power module in the second adjacent energy storage sub-module, and the output ends of the first redundant power supply output power resource of different electrical parameter levels through the second power distribution management module to provide redundant power resource for different first load components. It can be seen that the embodiment of the application realizes the redundant power supply for each first load component in the power module.

[0197] In some embodiments, the first power distribution management module 1212 in the embodiment of the application can also have a switching function, and the battery control board can control the switching state of the first power distribution management module 1212 according to the first preset power supply strategy to control whether the power resource is provided by the first main power supply circuit 121.

[0198] The second power distribution management module 1222 in the embodiment of the application can also have a switching function, and the battery control board can control the switching state of the second power distribution management module 1212 according to the first preset power supply strategy to control whether the power resource is provided by the first redundant power supply circuit 122.

[0199] Exemplarily, the first preset power supply strategy can include but is not limited to the first competitive power supply strategy or the first priority power supply strategy. The first competitive power supply strategy can be used to indicate that the power supply circuit where the power distribution management module with the highest output voltage is located provides the power resource; the first priority power supply strategy can be used to indicate that the first main power supply circuit provides the power resource, but in the case that the first main power supply circuit fails or the energy storage sub-module corresponding to the first main power supply circuit is in a bypass state, the first redundant power supply circuit is switched to provide the power resource.

[0200] It can be seen that, in the embodiment of the application, the battery control panel can control the power supply priority of the power supply circuit of the power module by controlling the switch state of the first power distribution management module and / or the switch state of the second power distribution management module according to the first preset power supply strategy, thereby facilitating improvement of the reliability and stability of the power supply circuit of the power module.

[0201] In some embodiments, on the basis of the above-mentioned embodiments, the power supply form 1 of the battery power supply circuit is exemplarily introduced and described in the embodiment of the application, taking the first adjacent battery cluster and the second adjacent battery cluster as the same battery cluster as an example.

[0202] Figure 14 The structural schematic diagram of the battery power supply circuit of the battery module provided in some embodiments of the application is shown in FIG. 12. Figure 14 As shown in FIG. 12, the battery power supply circuit 123 in the embodiment of the application can include a second main power supply circuit 1231 and a second redundant power supply circuit 1232.

[0203] Exemplarily, the second main power supply circuit 1231 can include a second main power supply 1231A and a third power distribution management module 1231B. The input end of the second main power supply 1231A in the embodiment of the application can be connected with the corresponding battery cluster i, so that the main power resource can be obtained from the battery cluster i. Wherein, i is an integer greater than 1.

[0204] The output end of the second main power supply 1231A in the embodiment of the application can be connected with the input end of the third power distribution management module 1231B. The first output end of the third power distribution management module 1231B can be connected with the second load component corresponding to the battery cluster i, so that the main power resource can be provided for the second load component corresponding to the battery cluster i. The second output end of the third power distribution management module 1231B can be connected with the second load component corresponding to the first adjacent battery cluster i+1 of the battery cluster i, so that the redundant power resource can be provided for the second load component corresponding to the first adjacent battery cluster i+1.

[0205] Exemplarily, the output end of the second main power supply 1231A can also be connected with the battery control panel in the energy storage sub-module, so that the redundant power resource can be further provided for the battery control panel, which is conducive to meeting the black start demand of the energy storage sub-module.

[0206] Exemplarily, the second redundant power supply circuit 1232 can include a second redundant power supply 1232A and a fourth power distribution management module 1232B. The input end of the second redundant power supply 1232A in the embodiment of the application can be connected with the first adjacent battery cluster i+1, so that the power resource can be obtained from the first adjacent battery cluster i+1.

[0207] The output end of the second redundant power supply 1232A in the embodiment of the present application can be connected with the input end of the fourth power distribution management module 1232B, the first output end of the fourth power distribution management module 1232B can be connected with the second load component corresponding to the battery cluster i, so that the second load component corresponding to the battery cluster i can be provided with redundant power resource. The second output end of the fourth power distribution management module 1232B can be connected with the second load component corresponding to the first adjacent battery cluster i+1, so that the second load component corresponding to the first adjacent battery cluster i+1 can be provided with main power resource.

[0208] For example, the output end of the second redundant power supply 1232A can also be connected with the battery control board in the energy storage submodule, so that the battery control board can be further provided with redundant power resource, which is conducive to meeting the black start demand of the energy storage submodule.

[0209] It should be noted that for the first adjacent battery cluster i+1, the second redundant power supply circuit 1232 is the second main power supply circuit in the battery power supply circuit corresponding to the first adjacent battery cluster i+1, and the second main power supply circuit 1231 is the second redundant power supply circuit corresponding to the first adjacent battery cluster i+1.

[0210] In summary, the first adjacent battery cluster i+1 in the embodiment of the present application can provide the second load component corresponding to the battery cluster i with redundant power resource, and the battery cluster i can provide the second load component corresponding to the first adjacent battery cluster i+1 with redundant power resource. It can be seen that the redundant power supply scheme between two battery clusters is realized in the embodiment of the present application, which is conducive to saving the number of redundant power supplies and the cost of power supply system.

[0211] In some embodiments, the third power distribution management module 1231B in the embodiment of the present application can also have a switching function, and the battery control board can control the switching state of the third power distribution management module 1231B according to the second preset power supply strategy, so as to control whether the second main power supply circuit 1231 provides power resource.

[0212] The fourth power distribution management module 1232B in the embodiment of the present application can also have a switching function, and the battery control board can control the switching state of the fourth power distribution management module 1232B according to the second preset power supply strategy, so as to control whether the second redundant power supply circuit 1232 provides power resource.

[0213] Exemplarily, the second preset power supply strategy may include, but is not limited to, a second competitive power supply strategy or a second priority power supply strategy. The second competitive power supply strategy may be used to indicate that the power supply circuit with the highest output voltage, where the power distribution management module is located, provides power resources; the second priority power supply strategy may be used to indicate that the second main power supply circuit is preferred for power resources, but in the event of a failure of the second main power supply circuit, power resources are switched to the second redundant power supply circuit.

[0214] It can be seen that in the embodiment of the present application, the battery control board can control the power supply priority of the battery power supply circuit by controlling the switching state of the third power distribution management module and / or the switching state of the fourth power distribution management module according to the second preset power supply strategy, thereby helping to improve the reliability and stability of the battery power supply circuit.

[0215] In some embodiments, based on the above embodiments, the present application takes the first adjacent battery cluster and the second adjacent battery cluster as the same battery cluster as an example to exemplify the power supply mode 2 of the battery power supply circuit.

[0216] Figure 15 This is a schematic diagram of the structure of the battery power supply circuit of the battery module provided in some other embodiments of the present application, combined with Figure 14 and Figure 15 As shown, the battery power supply circuit in the embodiment of the present application is the same as the above Figure 14 The difference between the battery power supply circuits in the illustrated embodiments is that the output end of the second main power supply 1231A in the embodiment of the present application is not connected to the battery control board in the energy storage submodule, and the output end of the second redundant power supply 1232A is not connected to the battery control board in the energy storage submodule.

[0217] It should be noted that other parts of the battery power supply circuit in the embodiment of the present application can refer to the above Figure 14 The relevant contents in the illustrated embodiment will not be repeated here.

[0218] In some embodiments, based on the above embodiments, the present application takes the first adjacent battery cluster and the second adjacent battery cluster as an example to exemplify the power supply form 3 of the battery power supply circuit.

[0219] Figure 16 This is a schematic diagram of the structure of the battery power supply circuit of the battery module provided in some other embodiments of the present application, such as Figure 16 As shown, the battery power supply circuit 123 in the embodiment of the present application may include a second main power supply circuit 1231 and a second redundant power supply circuit 1232 .

[0220] Exemplarily, the second main power supply circuit 1231 can include a second main power supply 1231 A and a third power distribution management module 1231B. Wherein, the input end of the second main power supply 1231 A in the embodiment of the present application can be connected with the corresponding battery cluster i, so as to obtain the main power resource from the battery cluster i.

[0221] The output end of the second main power supply 1231 A in the embodiment of the present application can be connected with the input end of the third power distribution management module 1231B, and the first output end of the third power distribution management module 1231B can be connected with the second load component corresponding to the battery cluster i, so as to provide the main power resource for the second load component corresponding to the battery cluster i. The second output end of the third power distribution management module 1231B can be connected with the second load component corresponding to the second adjacent battery cluster i-1 of the battery cluster i, so as to provide the redundant power resource for the second load component corresponding to the second adjacent battery cluster i-1. That is, the battery cluster i in the embodiment of the present application can provide the redundant power resource for the second load component corresponding to the second adjacent battery cluster i-1.

[0222] Exemplarily, the second redundant power supply circuit 1232 can include a second redundant power supply 1232A and a fourth power distribution management module 1232B. Wherein, the input end of the second redundant power supply 1232A in the embodiment of the present application can be connected with the first adjacent battery cluster i+1, so as to obtain the power resource from the first adjacent battery cluster i+1.

[0223] The output end of the second redundant power supply 1232A in the embodiment of the present application can be connected with the input end of the fourth power distribution management module 1232B, and the first output end of the fourth power distribution management module 1232B can be connected with the second load component corresponding to the battery cluster i, so as to provide the redundant power resource for the second load component corresponding to the battery cluster i. The second output end of the fourth power distribution management module 1232B can be connected with the second load component corresponding to the first adjacent battery cluster i+1, so as to provide the main power resource for the second load component corresponding to the first adjacent battery cluster i+1. That is, the first adjacent battery cluster i+1 in the embodiment of the present application can provide the redundant power resource for the second load component corresponding to the battery cluster i.

[0224] Exemplarily, the redundant power resource of the second load component corresponding to the first adjacent battery cluster i+1 in the embodiment of the present application can be obtained from the second adjacent battery cluster i-1 through the second redundant power supply circuit (not shown in the figure) corresponding to the first adjacent battery cluster i+1. Figure 16 That is, the second adjacent battery cluster i-1 in the embodiment of the present application can provide the redundant power resource for the second load component corresponding to the first adjacent battery cluster i+1.

[0225] It should be noted that, for the first adjacent battery cluster i+1, the second redundant power supply circuit 1232 is the second main power supply circuit in the battery power supply circuit corresponding to the first adjacent battery cluster i+1.

[0226] In summary, in the battery cluster i in the embodiment of the present application, the second adjacent battery cluster i-1 can provide redundant power resources for the second load component corresponding to the second adjacent battery cluster i-1, the first adjacent battery cluster i+1 can provide redundant power resources for the second load component corresponding to the battery cluster i, and the second adjacent battery cluster i-1 can provide redundant power resources for the second load component corresponding to the first adjacent battery cluster i+1. It can be seen that the ring-shaped redundant power supply scheme of three battery clusters is realized in the embodiment of the present application, which is beneficial to saving the number of redundant power supplies and the cost of the power supply system.

[0227] It should be noted that, in the case that the number of battery clusters in the battery module is even, the power supply circuit of a complete battery module can generally include a group of battery power supply circuits of power supply form 1 (used to meet the black start requirement) and multiple groups of battery power supply circuits of power supply form 2. In the case that the number of battery clusters in the battery module is odd, the power supply circuit of a complete battery module can generally include a group of battery power supply circuits of power supply form 1 (used to meet the black start requirement), multiple groups of battery power supply circuits of power supply form 2, and a group of battery power supply circuits of power supply form 3.

[0228] In summary, the embodiment of the present application proposes a simple redundant power supply architecture of an energy storage sub-module applicable to a high-voltage cascaded energy storage scene. Through the redundant power supply scheme of the load components in the power module and the load components in the battery module, the power supply stability of the energy storage sub-module and the high-voltage cascaded system is improved. In addition, the power supply architecture of the embodiment of the present application can be divided into the power supply circuit of the power module and the power supply circuit of the battery module, which realizes the decoupling of the battery module power supply and the power module power supply, does not require a large power supply, and thus the redundant power supply cost of the energy storage sub-module can be saved. In addition, the power supply types in the power supply architecture in the embodiment of the present application include the first main power supply type, the first redundant power supply type in the power supply circuit of the power module, and the power supply type in the power supply circuit of the battery module, which reduces the power supply types, simplifies the power supply system, and thus the development cost of power supply parts can be saved.

[0229] In some embodiments, Figure 17 The structure diagram of the energy storage valve provided by some embodiments of the present application is shown in FIG. 17. Figure 17 As shown in FIG. 17, the energy storage valve in the embodiment of the present application can include an energy storage main line 1701 and multiple energy storage sub-modules 1702. The multiple energy storage sub-modules 1702 can be connected with the energy storage main line 1701.

[0230] It should be noted that the energy storage submodule 1702 in the embodiment of the present application is similar to the energy storage submodule provided in the above-mentioned energy storage submodule embodiment of the present application, and its implementation principle and technical effects are similar, which will not be repeated here.

[0231] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An energy storage submodule, characterized in that: The energy storage submodule includes a power module, a battery module and a power supply circuit; wherein the power module includes a plurality of first load components, the battery module includes a plurality of interconnected battery clusters and a second load component; the power supply circuit includes: a first main power supply circuit of the power module, a first redundant power supply circuit of the power module and at least one battery power supply circuit corresponding to the battery module; The input end of the first main power supply circuit is connected to the battery bus terminal of the energy storage submodule, and the output end of the first main power supply circuit is connected to the plurality of first load components respectively; The input end of the first redundant power supply circuit is a redundant power input end of the first redundant power supply circuit, and the output end of the first redundant power supply circuit is connected to the plurality of first load components; The input end of the battery power supply circuit is connected to the corresponding battery cluster and the first adjacent battery cluster of the battery cluster respectively, and the output end of the battery power supply circuit is connected to the second load component corresponding to the battery cluster.

2. The energy storage submodule according to claim 1, characterized in that: The first main power supply circuit includes a first main power supply and a first power distribution management module; Among them, the input end of the first main power supply is connected to the battery bus end of the energy storage sub-module, the output ends of the first main power supply are respectively connected to the input ends of the first power distribution management module, and the output ends of the first power distribution management module are respectively connected to multiple first load components.

3. The energy storage submodule according to claim 2, characterized in that: The first power distribution management module includes a plurality of first power distribution management units; The input end of the first power distribution management unit is connected to the output end corresponding to the first main power supply, and at least one output end of the first power distribution management unit is respectively connected to the corresponding first load component.

4. The energy storage submodule according to claim 3, characterized in that: The first power distribution management unit includes: a first protection branch and at least one first unidirectional conduction branch; The input end of the first protection branch is connected to the output end corresponding to the first main power supply, the output end of the first protection branch is respectively connected to the input end of each of the first unidirectional conduction branches, and the output end of each of the first unidirectional conduction branches is respectively connected to the corresponding first load component.

5. The energy storage submodule according to any one of claims 1 to 4, characterized in that: The first redundant power supply circuit includes a first redundant power supply and a second power distribution management module; Among them, the input end of the first redundant power supply is the redundant power supply input end of the first redundant power supply circuit, the output ends of the first redundant power supply are respectively connected to the input ends of the second power distribution management module, and the output ends of the second power distribution management module are respectively connected to multiple first load components.

6. The energy storage submodule according to claim 5, characterized in that: The second power distribution management module includes a plurality of second power distribution management units; The input end of the second power distribution management unit is connected to the output end corresponding to the first redundant power supply, and at least one output end of the second power distribution management unit is respectively connected to the corresponding first load component.

7. The energy storage submodule according to claim 6, characterized in that: The second power distribution management unit includes: a second protection branch and at least one second unidirectional conduction branch; The input end of the second protection branch is connected to the output end corresponding to the first redundant power supply, the output end of the second protection branch is respectively connected to the input end of each second unidirectional conduction branch, and the output end of each second unidirectional conduction branch is respectively connected to the corresponding first load component.

8. The energy storage submodule according to any one of claims 1 to 4, characterized in that: The battery power supply circuit includes: a second main power supply circuit and a second redundant power supply circuit; The input end of the second main power supply circuit is connected to the corresponding battery cluster, and the output end of the second main power supply circuit is respectively connected to the second load component corresponding to the battery cluster and the second load component corresponding to the second adjacent battery cluster of the battery cluster; The input end of the second redundant power supply circuit is connected to a first adjacent battery cluster of the battery cluster, and the output end of the second redundant power supply circuit is respectively connected to a second load component corresponding to the battery cluster and a second load component corresponding to the first adjacent battery cluster.

9. The energy storage submodule according to claim 8, characterized in that: The second main power supply circuit includes a second main power supply and a third power distribution management module; Among them, the input end of the second main power supply is connected to the corresponding battery cluster, the output end of the second main power supply is connected to the input end of the third power distribution management module, and each output end of the third power distribution management module is respectively connected to the second load component corresponding to the battery cluster and the second load component corresponding to the second adjacent battery cluster of the battery cluster.

10. The energy storage submodule according to claim 9, characterized in that: The third power distribution management module includes a third protection branch and at least one third unidirectional conduction branch; Among them, the input end of the third protection branch is connected to the output end corresponding to the second main power supply, the output end of the third protection branch is respectively connected to the input end of each of the third unidirectional conduction branches, and the output end of each of the third unidirectional conduction branches is respectively connected to the second load component corresponding to the battery cluster and the second load component corresponding to the second adjacent battery cluster.

11. The energy storage submodule according to claim 9, characterized in that: The output end of the second main power supply in any of the battery-powered circuits is also connected to the battery control board in the energy storage submodule.

12. The energy storage submodule according to claim 9, characterized in that: The second redundant power supply circuit includes a second redundant power supply and a fourth power distribution management module; The input end of the second redundant power supply is connected to the first adjacent battery cluster, and the output end of the second redundant power supply is connected to the input end of the fourth power distribution management module; Each output end of the fourth power distribution management module is connected to the second load component corresponding to the battery cluster and the second load component corresponding to the first adjacent battery cluster respectively.

13. The energy storage submodule according to claim 12, characterized in that: The fourth power distribution management module includes a fourth protection branch and at least one fourth unidirectional conduction branch; Among them, the input end of the fourth protection branch is connected to the output end corresponding to the second redundant power supply, the output end of the fourth protection branch is respectively connected to the input end of each of the fourth unidirectional conducting branches, and the output end of each of the fourth unidirectional conducting branches is respectively connected to the second load component corresponding to the battery cluster and the second load component corresponding to the first adjacent battery cluster.

14. The energy storage submodule according to claim 12, characterized in that: The output end of the second redundant power supply in any of the battery-powered circuits is also connected to the battery control board in the energy storage submodule.

15. The energy storage submodule according to any one of claims 8 to 14, characterized in that: When the number of the battery clusters in the battery module is an even number, the first adjacent battery cluster and the second adjacent battery cluster are the same battery cluster.

16. The energy storage submodule according to any one of claims 8 to 14, characterized in that: When the number of the battery clusters in the battery module is an odd number, the first adjacent battery cluster and the second adjacent battery cluster of the battery clusters corresponding to at least one battery power supply circuit are adjacent battery clusters.

17. An energy storage valve, characterized in that: The energy storage valve includes an energy storage trunk line and a plurality of energy storage submodules according to any one of claims 1 to 16; wherein the plurality of energy storage submodules are connected to the energy storage trunk line.

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