Energy storage valve control and protection test system

Abstract

An energy storage valve control and protection test system, comprising an upper computer (100), a test tool (200), a first sub-module control board (300), a prototype board (400), a valve base controller (500) and a simulation device (600), wherein the valve base controller (500) is connected to the simulation device (600) and the first sub-module control board (300), and the valve base controller (500) is configured to manage and control a plurality of energy storage valve sub-modules; the simulation device (600) is configured to simulate the operating conditions of the plurality of energy storage valve sub-modules; the test tool (200) is connected to the upper computer (100), the valve base controller (500) and the simulation device (600), and the test tool (200) is connected to the prototype board (400) by means of the first sub-module control board (300); and the prototype board (400) is further connected to the test tool (200), and the prototype board (400) is configured to simulate a power circuit or comprise a power circuit. A physical test can be performed on the coordination logic among internal control and protection devices such as a sub-module control board of at least one energy storage valve sub-module and a battery management control board (700), and an RTDS is also incorporated to perform a dynamic simulation test on the operating conditions of the other energy storage valve sub-modules, thereby completing a full-link test of the energy storage valve control and protection system.

Description

Energy storage valve control test system

[0001] This application claims priority to the Chinese patent application No. 202421971638.5, filed on August 14, 2024, entitled "Energy storage valve control test system", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application belongs to the technical field of testing, and particularly relates to an energy storage valve control test system. BACKGROUND

[0003] The flexible direct current energy storage utilizes modular multilevel (Modular Multilevel Converter, MMC) technology, and integrates energy storage units in a distributed manner in sub-modules. The flexible direct current energy storage has the advantages of high modularization degree, good harmonic characteristics, and low equivalent switching frequency, and is easy to realize a large-capacity energy storage system of 100 megawatts or more. Generally, the energy storage control and protection (i.e., control and protection) system of the flexible direct current energy storage has multiple control levels and complex interfaces. Before being shipped, a dynamic model test system needs to be built to simulate the working conditions of the engineering site, and the function and performance of the energy storage control and protection system need to be tested. However, the voltage level of the flexible direct current energy storage is high, the power is large, and the primary equipment is bulky, so it is difficult to build a complete full-physical test system in the factory. Therefore, virtual testing and simulation methods are becoming more and more popular.

[0004] However, the energy storage control and protection system is verified through a simulation environment, and the cooperation logic of the controller inside the sub-module cannot be tested online, but can only be verified offline, which has the risk of insufficient testing.

[0005] SUMMARY

[0006] In view of the above problems, the present application provides an energy storage valve control test system, which aims to solve the problem of insufficient testing of the energy storage control and protection system through virtual testing.

[0007] In a first aspect, the present application provides an energy storage valve control test system, comprising a host computer, a test tool, a first sub-module control board, a model board, a valve-based control device, and a simulation device. The valve-based control device is connected with the simulation device and the first sub-module control board. The valve-based control device is used for managing and controlling a plurality of energy storage valve sub-modules. The simulation device is used for simulating the operating conditions of the plurality of energy storage valve sub-modules. The test tool is connected with the host computer, the valve-based control device, and the simulation device. The test tool is connected with the model board through the first sub-module control board. The model board is also connected with the test tool. The model board is used for simulating a power circuit or includes a power circuit.

[0008] In the technical scheme of the embodiment of the application, the energy storage valve control protection test system can configure the instructions or data between the test tool and the first sub-module control board, between the first sub-module control board and the model board, and between the first sub-module control board and other devices in the energy storage valve sub-module through the host computer, realize physical testing of the first sub-module control board inside the energy storage sub-module, and make the testing of the energy storage control protection system more sufficient; the test tool can also simulate the operating conditions of the energy storage control protection system on other energy storage valve sub-modules except the first sub-module control board through the simulation device, and provide the valve base control device with the data of interaction and control of the protection device connected to the load or the power grid, to complete the full-link testing of the entire energy storage control protection system; the valve base control device of the energy storage valve control system, the first sub-module control board, and the battery management control board are all connected to the simulation device, and the testing effect is closer to the engineering practice. The convenience of the first sub-module control board and the battery management control board in / out of the simulation test system is realized, testing and verification are performed from multiple dimensions, the testing effect can cover various working conditions of the engineering more, and the adaptability of the simulation test system to multiple scenes is improved.

[0009] In some embodiments, a battery management control board is further included, and the battery management control board is connected with the test tool and the first sub-module control board.

[0010] In the technical scheme of the embodiment of the application, the energy storage valve control protection test system configures the instructions or data between the test tool and the battery management control board, between the first sub-module control board and the battery management control board, and between the battery management control board and other devices in the energy storage valve sub-module through the host computer, realizes physical testing of the battery management control board inside the energy storage valve sub-module, and makes the testing of the energy storage control protection system more sufficient.

[0011] In some embodiments, a sub-module battery management device is further included, and the sub-module battery management device is connected with the test tool and the battery management control board.

[0012] In the technical scheme of the embodiment of the application, the energy storage valve control protection test system configures the instructions or data between the test tool and the sub-module battery management device, and between the sub-module battery management device and the battery management control board through the host computer through the test tool, realizes physical testing of the sub-module battery management device inside the energy storage valve sub-module, and makes the testing of the energy storage control protection system more sufficient.

[0013] In some embodiments, the test tool includes a power board, a control board, and a plurality of interface boards, the power board is connected with the control board and the plurality of interface boards, the control board is connected with the host computer and the plurality of interface boards, and the plurality of interface boards are connected with the first sub-module control board, the model board, the battery management control board, and the sub-module battery management device.

[0014] The interface plate in the test tool can be integrated with a conventional interface tool, can be used compatibly, shares a power supply and a processor, and does not need to develop an additional hardware board.

[0015] In some embodiments, the several interface plates include a switch mode selection interface, a first bypass switch interface, a first isolation switch interface, and a battery management control plate interface; the switch mode selection interface is connected with the model plate, and the first bypass switch interface, the first isolation switch interface, and the battery management control plate interface are all connected with the first sub-module control plate.

[0016] In the technical solution of the embodiments of the present application, the test tool configures various signals and data necessary for the normal work of the first sub-module control plate through the switch mode selection interface, the first bypass switch interface, and the first isolation switch interface, and configures various signals and data necessary for the actual interaction with the battery management control plate through the battery management control plate interface, so as to provide necessary signals and data for the normal operation of the first sub-module control plate, and realize physical testing of the first sub-module control plate.

[0017] In some embodiments, the several interface plates further include a second bypass switch interface, a second isolation switch interface, and a sub-module battery management device interface; the second bypass switch interface and the second isolation switch interface are connected with the battery management control plate, and the sub-module battery management device interface is connected with the sub-module battery management device.

[0018] In the technical solution of the embodiments of the present application, the test tool configures various signals and data necessary for the normal work of the battery management control plate through the second bypass switch interface and the second isolation switch interface, and configures various signals and data necessary for the normal work of the sub-module battery management device through the sub-module battery management device interface, so as to realize physical testing of the battery management control plate and the sub-module battery management device.

[0019] In some embodiments, a plurality of communication modules are further included, the sub-module battery management device interface includes a plurality of communication interfaces, and the plurality of communication modules are connected with the plurality of communication interfaces and the sub-module battery management device respectively.

[0020] In the technical solution of the embodiments of the present application, the test tool realizes the interaction of a plurality of sampling parameters with the sub-module battery management device through the plurality of communication modules, and the battery management control plate can acquire these sampling parameters through the sub-module battery management device, so as to realize normal operation.

[0021] In some embodiments, the model plate includes a second sub-module control plate. The second (i.e., another) sub-module control plate is configured into the model plate, which is simple and reliable; based on the same interface, it is convenient to dock with the actual first sub-module control plate.

[0022] In some embodiments, each interface board includes several fiber conversion interfaces. An interface board is provided in a manner that the fiber conversion interfaces have high communication speed and strong anti-interference capability.

[0023] The above description is only a summary of the technical solutions of the present application. In order to enable one skilled in the art to better understand the technical means of the present application, the contents of the specification can be implemented, and in order to enable the above and other purposes, features and advantages of the present application to be more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0024] 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 only to illustrate preferred embodiments and are not to be considered as limiting of the present application. Furthermore, like reference numerals refer to like parts throughout the various drawings. In the drawings:

[0025] Fig. 1 is a structural schematic diagram of an energy storage valve provided by an embodiment of the present application;

[0026] Fig. 2 is a circuit schematic diagram of an energy storage valve sub-module provided by an embodiment of the present application;

[0027] Fig. 3 is a structural schematic diagram of an energy storage valve control and maintenance test system provided by an embodiment of the present application;

[0028] Fig. 4 is a structural schematic diagram of an energy storage valve control and maintenance test system provided by an embodiment of the present application;

[0029] Fig. 5 is a structural schematic diagram of an energy storage valve control and maintenance test system provided by an embodiment of the present application;

[0030] Fig. 6 is a structural schematic diagram of a test tool in an energy storage valve control and maintenance test system provided by an embodiment of the present application;

[0031] Fig. 7 is a structural schematic diagram of an energy storage valve control and maintenance test system provided by an embodiment of the present application;

[0032] Fig. 8 is a structural schematic diagram of an energy storage valve control and maintenance test system provided by an embodiment of the present application;

[0033] Fig. 9 is a structural schematic diagram of an energy storage valve control and maintenance test system provided by an embodiment of the present application. DETAILED DESCRIPTION

[0034] 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.

[0035] 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 use of the terms "including," "comprising," "having" and "with" in the specification and claims herein are used to mean "including but not limited to" or "comprising but not limited to" or "having but not limited to" or "with but not limited to," and are not used to mean "consisting only of" or "consisting only of."

[0036] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0037] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0039] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0040] FIG. 1 is a schematic diagram of a high-voltage direct-hanging energy storage valve (hereinafter referred to as energy storage valve), as shown in FIG. 1, the energy storage valve includes an upper bridge arm and a lower bridge arm, the upper bridge arm and the lower bridge arm respectively include protection devices S1, S2 and m energy storage sub-modules. Among them, the energy storage sub-modules in the upper bridge arm and the lower bridge arm are represented as SM1#m and SM2#m respectively, and m is 1, 2, 3,..., n. The protection devices S1, S2 are, for example, contactors or circuit breakers.

[0041] The topology of the energy storage valve sub-module is shown in FIG. 2, which includes a bypass switch K1, a circuit breaker K2, a power circuit, a filter capacitor C1 and a battery module BT1. The power circuit includes an upper switch tube T1 and a lower switch tube T2 connected in series between the positive and negative bus bars, and the switch tube is, for example, an Insulate-Gate Bipolar Transistor (IGBT). The battery module BT1 includes at least one battery cluster, each battery cluster includes one or more battery packs, and each battery pack includes one or more battery monomers. In some embodiments, A1 and A2 in FIG. 2 represent two connection ports, and each energy storage valve sub-module is connected to the main loop of the energy storage valve through the two connection ports A1 and A2 to be connected to the external circuit through the main loop. In other embodiments, the energy storage valve sub-module shown in FIG. 2 can also be used for AC energy storage valves.

[0042] Generally, when the high-voltage direct-hanging energy storage valve is tested in the factory, the energy storage control and protection system is generally not connected with the sub-modules, but uses a Real time digital simulation system (RTDS) to simulate the operation condition of the energy storage valve sub-module. However, the cooperation logic of the sub-module controller (SMC), the battery management controller (BMC) and the sub-module battery management unit (SBMU) in the energy storage valve sub-module cannot be tested online, and can only be verified offline, which has the hidden danger of insufficient testing and cannot complete the full-link testing of the energy storage valve control and protection system.

[0043] To this end, the embodiments of the present application provide an energy storage valve control and protection testing system, which can test the cooperation logic of the internal control and protection devices such as the sub-module control board and the battery management control board of at least one energy storage valve sub-module, and also has the function of the RTDS for dynamic simulation testing of the operation condition of other energy storage valve sub-modules, thereby completing the full-link testing of the energy storage valve control and protection system.

[0044] According to some embodiments of the present application, optionally, please continue to refer to FIG. 3, which shows a structure schematic diagram of an energy storage valve control and protection testing system provided by an embodiment of the present application. For the convenience of description, only the parts related to the present embodiment are shown, and the details are as follows:

[0045] The energy storage valve control and protection test system comprises a host computer 100, a test tool 200, a first submodule control board 300, a model board 400, a valve base controller (VBC) 500 and a simulation device 600. The valve base controller 500 is connected with the simulation device 600 and the first submodule control board 300, and is used for managing and controlling a plurality of energy storage valve submodules. The simulation device is used for simulating the operating conditions of the plurality of energy storage valve submodules. The test tool 200 is connected with the host computer 100, the valve base controller 500 and the simulation device 600. The test tool 200 is connected with the model board 400 through the first submodule control board 300. The model board 400 is also connected with the test tool 200. The model board 400 is used for simulating a power circuit or comprising a power circuit.

[0046] The host computer 100 is, for example, a personal computer (PC), and is used for issuing instructions of the entire energy storage valve control and protection test system, monitoring feedback, recording and saving test results, and the like. The valve base controller 500 is a master control device of the energy storage valve. In some embodiments, the valve base controller 500 is used for providing control instructions of the power circuit to the first submodule control board 300, and controlling the closing and opening of the IBGT.

[0047] During the test, the valve base controller 500 configures various signals and data necessary for the normal work of the first submodule control board 300, and completes the physical test of the first submodule control board 300. At the same time, the test tool 200 obtains the control instructions and feedback states of the protection device S1 / S2 connected to the load or the power grid from the simulation device 600 through the valve base controller 500, and completes the physical test of the valve base controller 500. The protection device S1 / S2 in the energy storage valve comprises, for example, one or more of a contactor, a circuit breaker, a current sampling circuit, a voltage sampling circuit, and the like. The valve base controller 500 is used for monitoring and managing the input / output of the energy storage valve through the protection device S1 / S2.

[0048] The first submodule control board 300 is an entity component that can be used in the energy storage valve submodule, and comprises a SMC circuit and the like. The first submodule control board 300 is usually used for issuing instructions and feedback of the power circuit, the bypass switch, the circuit breaking switch and the like in the energy storage valve submodule. Therefore, during the test, the valve base controller 500 can issue control commands to the first submodule control board 300, so that the first submodule control board 300 can complete the normal operation and receive feedback signals, for example, simulate the issuing and feedback of the instructions of the power circuit, the bypass switch, the circuit breaking switch and the like in the energy storage valve submodule. In addition, it can also be tested whether the cooperation logic function of the first submodule control board 300 and the BMC is normal.

[0049] The model board 400 is, for example, a power circuit with an energy storage valve sub-module or a circuit board capable of simulating the working principle of the power circuit of the energy storage valve sub-module. In some embodiments, another sub-module control board can be used to simulate the working principle of the power circuit of the energy storage valve sub-module, and the connection with the first sub-module control board 300 is facilitated, because the interfaces of each sub-module control board correspond to each other.

[0050] The simulation device 600 is, for example, a device running an RTDS model, configured to provide information interaction and control of other energy storage valve sub-modules of the energy storage control and protection system to the valve-based control device 500, in addition to the energy storage valve sub-modules that are physically tested as described above (including the first sub-module controller 300), and provide control instructions and feedback states of the protection device S1 / S2 simulated to be connected to the load or the power grid to the valve-based control device 500.

[0051] In the technical solution of the embodiments of the present application, the energy storage valve control and protection test system can configure instructions between the test tool 200 and the first sub-module control board 300, between the first sub-module control board 300 and the model board 400, and between the first sub-module control board 300 and other devices in the energy storage valve sub-module through the host computer 100 via the test tool 200, thereby realizing physical testing of the first sub-module control board 300 in the energy storage valve sub-module, and making the testing of the energy storage control and protection system more sufficient.

[0052] The test tool 200 can also simulate control instructions and feedback states of other energy storage valve sub-modules of the energy storage control and protection system in addition to the energy storage valve sub-modules that are physically tested as described above, and provide control instructions and feedback states of the protection device S1 / S2 simulated to be connected to the power grid to the valve-based control device 500, thereby completing full-link testing of the entire energy storage control and protection system. The valve-based control device 500 and the first sub-module control board 300 of the energy storage valve control system are all connected to the simulation device 600, the testing effect is closer to the engineering practice, the convenience of the first sub-module control board 300 fully physically cutting into the simulation test system is realized, testing and verification are performed from multiple dimensions, the testing effect can cover various working conditions of the engineering, and the adaptability of the simulation test system to multiple scenes is improved.

[0053] According to some embodiments of the present application, optionally, please continue to refer to FIG. 4, which shows a structural schematic diagram of an energy storage valve control and protection test system provided by an embodiment of the present application. For ease of illustration, only parts related to the present embodiment are shown, and the details are as follows:

[0054] The energy storage valve control and protection test system further comprises a battery management control board 700 connected to the test tool 200 and the first sub-module control board 300.

[0055] The battery management control board 700 is an entity component that can be used in the energy storage valve submodule and includes a BMC circuit and the like. Generally, the battery management control board 700 is used for monitoring and management of a battery module of an energy storage submodule; alternatively, the battery management control board 700 can also issue and feedback instructions of bypass switches, circuit breakers and the like in the energy storage valve submodule.

[0056] During the test, the test tool 200 can be configured by the host computer 100 to issue control commands to the battery management control board 700, so that the battery management control board 700 can complete normal operation and receive feedback signals, for example, to simulate the issuance and feedback of instructions to bypass switches K1, circuit breakers K2 and the like in the energy storage valve submodule. In some embodiments, during the test, the test tool 200 can be configured by the host computer 100 to enable the simulation device 600 to provide current, voltage, power or temperature information of a battery cluster to the battery management control board 700 through the test tool 200, so that the battery management control board 700 can complete normal operation.

[0057] In the technical solution of the embodiments of the present application, the energy storage valve control and protection test system configures the instructions or data between the test tool 200 and the battery management control board 700, between the first submodule control board 300 and the battery management control board 700, and between the battery management control board 700 and the model board 400 through the test tool 200 of the host computer 100, to realize physical testing of the battery management control board 700 in the energy storage valve submodule, so that the energy storage control and protection system test is more sufficient.

[0058] According to some embodiments of the present application, optionally, please continue to refer to FIG. 5, which shows a structure schematic diagram of an energy storage valve control and protection test system according to an embodiment of the present application. For ease of illustration, only parts related to the present embodiment are shown, and are described in detail as follows:

[0059] The energy storage valve control and protection test system further includes a submodule battery management device 800, which is connected with the test tool and the battery management control board.

[0060] The submodule battery management device 800 is an entity component that can be used in the energy storage valve submodule and includes an SBMU and the like, which can monitor current, voltage, power or temperature information of a battery cluster and transmit the information to the battery management control board 700.

[0061] During the test, the host computer 100 can configure the test tool 200 to enable the simulation device 600 to transmit the information of the current, voltage, power or temperature of the battery cluster to the sub-module battery management device 800 through the test tool 200, and the sub-module battery management device 800 transmits the information to the battery management control board 700 to enable the battery management control board 700 to complete normal operation. During the test, the control command issued to the sub-module battery management device 800 enables the sub-module battery management device 800 to complete normal operation and receive feedback signals, such as the cooperation logic of the battery management control board 700 and the sub-module battery management device 800.

[0062] In the technical solution of the embodiment of the application, the energy storage valve control and protection test system configures the instructions between the test tool 200 and the sub-module battery management device 800 and between the battery management control board 700 and the sub-module battery management device 800 through the host computer 100, realizes the physical test of the sub-module battery management device 800 inside the energy storage valve sub-module, and enables the energy storage control and protection system test to be more sufficient.

[0063] According to some embodiments of the application, optionally, please continue to refer to FIG. 6, which shows the structure of the test tool in the energy storage valve control and protection test system according to an embodiment of the application. For ease of illustration, only the parts related to the embodiment are shown, and the details are as follows:

[0064] The test tool 200 includes a power board 210, a control board 220 and a plurality of interface boards 230 (i.e. interface board cards), the power board 210 is connected with the control board 220 and the plurality of interface boards 230, the control board 220 is connected with the host computer 100 and the plurality of interface boards 230, and the plurality of interface boards 230 are connected with the first sub-module control board 300, the model board 400, the battery management control board 700 and the sub-module battery management device 800.

[0065] The control board 220 is a central processing unit (CPU) board, which is used for management and control of the test tool 200 and communicates with external devices through the interface board 230. The interface board 230 can also be integrated in a conventional interface tool, sharing the power board 210 and the control board 220. In some embodiments, each interface board 230 has a plurality of fiber optic conversion interfaces, which can send communication messages or modulate optical signals. Each fiber optic conversion interface can be configured to a specific functional interface, such as an analog battery management interface, a bypass switch interface, an isolation switch interface, a model board communication interface, etc. through a configuration file. In one embodiment, the test tool 200 is also connected with the valve base control device 500 and the simulation device 600 through the interface board 230.

[0066] In the technical solution of the embodiment, the interface plate 230 in the test tool 200 can be integrated with a conventional interface tool, can be used compatibly, shares a power supply and a processor, and does not need to develop an additional hardware board.

[0067] According to some embodiments of the present application, please continue to refer to FIG. 7, which shows a structural schematic diagram of an energy storage valve control test system provided by an embodiment of the present application. For the convenience of description, only parts related to the present embodiment are shown, and the details are described as follows:

[0068] In some embodiments, the several interface plates 230 include a switch mode selection interface P1, a first bypass switch interface P2, a first isolation switch interface P3, and a battery management control plate interface P4. The switch mode selection interface P1 is connected with the model plate 400, the first bypass switch interface P2, the first isolation switch interface P3, and the battery management control plate interface P4 are all connected with the first sub-module control plate 300.

[0069] Among them, the first sub-module control plate 300 and the model plate 400 respectively have at least two pairs of one-to-one corresponding optical fiber conversion interfaces for modulating optical signals. The two pairs of optical fiber conversion interfaces correspond to two IBGTs in the power circuit, wherein in one pair of optical fiber conversion interfaces, one is used for simulating the control of the IGBT of the model plate 400, and the other is used for simulating the state detection and feedback of the IGBT of the model plate 400.

[0070] The switch mode selection interface P1 has at least one pair of optical fiber conversion interfaces for modulating optical signals, which is used for simulating the switch state of the two IBGTs respectively configured in the model plate 400, so that the IBGT is in a merged or disconnected state. In this way, the switch state of the two IBGTs in the model plate 400 can correspond to or be opposite to the controlled state itself, so as to be detected by the first sub-module control plate 300 to present a normal or fault state.

[0071] The first bypass switch interface P2 has at least one pair of optical fiber conversion interfaces for modulating optical signals (for example, the modulation frequency supports 0-3kHz), which provides the trigger instruction of the bypass switch K1 and the state feedback of the bypass switch K1 to the first sub-module control plate 300. The first isolation switch interface P3 has at least one pair of optical fiber conversion interfaces for modulating optical signals (for example, the modulation frequency supports 0-3kHz), which provides the trigger instruction of the isolation switch K2 and the state feedback of the isolation switch K2 to the first sub-module control plate 300. The battery management control plate interface P4 has two pairs of optical fiber conversion interfaces for sending communication messages, which provides the model plate 400 with the function of sending messages such as FT3 communication protocol to the first sub-module control plate 300.

[0072] In the technical solution of the embodiment of the application, the test tooling 200 configures the first sub-module control board 300 to issue and feedback various instructions necessary for normal work through the switch mode selection interface P1, the first bypass switch interface P2 and the first isolation switch interface P3, simulates the actual interaction necessary for the communication protocol message of the battery management control board 700 through the battery management control board interface P4, and can provide necessary signals and data for the normal operation of the first sub-module control board 300, thereby realizing physical testing of the first sub-module control board 300.

[0073] According to some embodiments of the application, please continue to refer to FIG. 8, which shows a structural schematic diagram of an energy storage valve control test system provided by an embodiment of the application. For the convenience of description, only the parts related to the embodiment are shown, and the details are described as follows:

[0074] In some embodiments, the several interface boards 230 further include a second bypass switch interface P5, a second isolation switch interface P6 and a sub-module battery management device interface P7; the second bypass switch interface P5 and the second isolation switch interface P6 are connected with the battery management control board 700, and the sub-module battery management device interface P7 is connected with the sub-module battery management device 800.

[0075] The battery management control board 700 is connected with the sub-module battery management device 800 to realize data interaction, for example, the current, voltage, power or temperature information of each battery cluster.

[0076] The second bypass switch interface P5 has at least one pair of optical fiber conversion interfaces (for example, the modulation frequency supports 0-3 kHz) for modulating optical signals, provides the trigger instruction of the bypass switch K1 to the battery management control board 700 and feeds back the state of the bypass switch K1. The second isolation switch interface P6 has at least one pair of optical fiber conversion interfaces (for example, the modulation frequency supports 0-3 kHz) for modulating optical signals, provides the trigger instruction of the isolation switch K2 to the battery management control board 700 and feeds back the state of the isolation switch K2. The sub-module battery management device interface P7 has at least three pairs of optical fiber conversion interfaces for sending communication messages, and provides the current, voltage, power or temperature data of each battery cluster to the sub-module battery management device 800.

[0077] In the technical solution of the embodiment of the application, the test tooling 200 configures the first sub-module control board 300 to issue and feedback various instructions necessary for normal work through the second bypass switch interface P5, the second isolation switch interface P6 and the battery management control board 700, configures the sub-module battery management device 800 to issue and feedback various data necessary for normal work through the sub-module battery management device interface P7, and realizes physical testing of the battery management control board 700 and the sub-module battery management device 800.

[0078] According to some embodiments of the present application, please continue to refer to Fig. 9, Fig. 9 shows a structural schematic diagram of the energy storage valve control and preservation test system provided by an embodiment of the present application. For the convenience of description, only the parts related to the present embodiment are shown, and the details are described as follows:

[0079] The energy storage valve control and preservation test system further comprises a plurality of communication modules 900. The sub-module battery management device interface P7 comprises a plurality of communication interfaces, and the plurality of communication modules 900 are connected with the plurality of communication interfaces and the sub-module battery management device 800 respectively.

[0080] Among them, the communication module 900 is, for example, a fiber conversion module that can send communication messages or modulated optical signals. In some embodiments, the communication module 900 is 3, which are communication interfaces P7.1, P7.2, P7.3 respectively, and are used to transmit the voltage and temperature of the battery cluster from the test tool 200, as well as the current and the battery voltage variable ratio coefficient.

[0081] In the technical solution of the embodiments of the present application, the test tool 200 realizes the interaction of a plurality of sampling parameters with the sub-module battery management device 800 through the plurality of communication modules 900, and the battery management control board 700 can obtain these sampling parameters through the sub-module battery management device 800 to realize normal operation.

[0082] According to some embodiments of the present application, the model board 400 comprises a second sub-module control board. The second (i.e. another) sub-module control board is configured into the model board 400, which is simple and reliable; based on the same interface, it is convenient to dock with the actual first sub-module control board 300.

[0083] According to some embodiments of the present application, each interface board 230 comprises a plurality of fiber conversion interfaces. A setting mode of the interface board 230 is provided, and the fiber conversion interface has high communication speed and strong anti-interference ability.

[0084] According to some embodiments of the present application, the construction process of the energy storage valve control and preservation test system is as follows:

[0085] The test environment is constructed, and all interfaces of the to-be-tested sample are connected with the test tool 200, and then the test tool 200 is started. The to-be-tested sample comprises the first sub-module control board 300, the model board 400, the valve base control device 500 and the simulation device 600, or further comprises the battery management control board 700 and the sub-module battery management device 800.

[0086] After the test tool 200 is powered on, the initialization process loads the configuration XML file and communicates with the host computer 100, and assigns default values to the output interfaces of the interface board 230 of the test tool 200, and then starts the RTDS model. After the to-be-tested sample is powered on and receives the default values, fault clearing can be realized, and the state of the to-be-tested sample is monitored in real time through the test tool 200 and the host computer 100. After the fault clearing, the test environment is built, and the system can be unlocked for subsequent tests.

[0087] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage valve regulated battery test system, wherein, The test device comprises a host computer, a test tool, a first sub-module control board, a model board, a valve base control device and a simulation device, the valve base control device is connected with the simulation device and the first sub-module control board, the valve base control device is used for managing and controlling a plurality of energy storage valve sub-modules, the simulation device is used for simulating the operation condition of the plurality of energy storage valve sub-modules, the test tool is connected with the host computer, the valve base control device and the simulation device, the test tool is connected with the model board through the first sub-module control board, the model board is also connected with the test tool, and the model board is used for simulating a power circuit or comprising a power circuit.

2. The energy storage valve regulated battery test system of claim 1, wherein, The test device further comprises a battery management control board, which is connected with the test tool and the first sub-module control board.

3. The energy storage valve regulated battery test system of claim 2, wherein, The test device further comprises a sub-module battery management device, which is connected with the test tool and the battery management control board.

4. The energy storage valve regulated battery test system of claim 3, wherein, The test tool comprises a power supply board, a control board and a plurality of interface boards, the power supply board is connected with the control board and the plurality of interface boards, the control board is connected with the host computer and the plurality of interface boards, and the plurality of interface boards are connected with the first sub-module control board, the model board, the battery management control board and the sub-module battery management device.

5. The energy storage valve regulated battery system of claim 4, wherein, The plurality of interface boards comprise a switch mode selection interface, a first bypass switch interface, a first isolation switch interface and a battery management control board interface, the switch mode selection interface is connected with the model board, and the first bypass switch interface, the first isolation switch interface and the battery management control board interface are connected with the first sub-module control board.

6. The energy storage valve regulated battery system of claim 5, wherein, The plurality of interface boards further comprise a second bypass switch interface, a second isolation switch interface and a sub-module battery management device interface, the second bypass switch interface and the second isolation switch interface are connected with the battery management control board, and the sub-module battery management device interface is connected with the sub-module battery management device.

7. The energy storage valve regulated battery test system of claim 3, wherein, The test device further comprises a plurality of communication modules, the sub-module battery management device interface comprises a plurality of communication interfaces, and the plurality of communication modules are respectively connected with the plurality of communication interfaces and the sub-module battery management device.

8. The energy storage valve regulated lead acid battery system of any one of claims 1 to 7, wherein, The model board comprises a second sub-module control board.

9. The energy storage valve regulated lead acid battery system of any of claims 4 to 6, wherein, Each of the interface boards comprises a plurality of optical fiber conversion interfaces.

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