Energy storage valve sub-module control panel test system

Abstract

An energy storage valve sub-module control panel test system configures instructions or data between a valve base control unit of a master test tool and a sub-module control panel to be tested and between the sub-module control panel to be tested and a sub-module control unit of a slave test tool through a host computer via the master test tool and the slave test tool. The physical test of the to-be-tested sub-module control panel in single link redundant communication is realized, so that the test of the energy storage valve sub-module control panel system is more sufficient.

Description

Technical Field

[0001] This application belongs to the field of testing technology, and particularly relates to a test system for a control board of an energy storage valve sub-module. Background Art

[0002] Flexible DC energy storage utilizes Modular Multilevel Converter (MMC) technology. The energy storage valve control and protection system of flexible DC energy storage has multiple control levels and complex interfaces, and needs to simulate the engineering field conditions for testing before leaving the factory.

[0003] Generally, in the field of high-voltage DC direct-connected energy storage valves below 35 kV, a dual communication link cross-redundant communication method of a sub-module controller (SMC) and a valve base controller (VBC) is usually adopted. In ultra-high voltage (e.g., above 800 kV) DC direct-connected energy storage valves, due to the large number of sub-modules, if the sub-module and the valve base controller adopt a dual communication link redundant communication method, a large amount of communication media (such as optical fibers) is required. Therefore, a single-link connection of SMC and VBC is adopted, and a redundant communication method connected to the SMC of the adjacent sub-module is used, that is, a single-link redundant communication connection method of VBC-SMC-SMC-VBC.

[0004] For this redundant communication method, corresponding tests are required to verify the function of redundant communication. Summary of the Utility Model

[0005] In view of the above problems, this application provides a test system for a control board of an energy storage valve sub-module, aiming to solve the problem that the single-link redundant communication connection method of SMC and VBC requires corresponding tests.

[0006] In a first aspect, an embodiment of this application provides a test system for a control board of an energy storage valve sub-module, including a host computer, a main test tooling, and a slave test tooling. The slave test tooling includes a sub-module control unit, and the main test tooling includes a valve base control unit. The main test tooling is connected to the host computer, the to-be-tested sub-module control board, and the slave test tooling, and the slave test tooling is connected to the to-be-tested sub-module control board.

[0007] In the technical solution of the embodiment of this application, by configuring instructions or data between the valve base control unit of the main test tooling and the to-be-tested sub-module control board, and between the to-be-tested sub-module control board and the sub-module control unit of the slave test tooling through the host computer via the main test tooling and the slave test tooling, the

[0008] The physical test of the sub-module control board to be tested in the single-link redundant communication of VBC-SMC-SMC-VBC makes the test of the energy storage valve sub-module control board system more sufficient.

[0009] In some embodiments, the main test tooling includes a power supply unit, a control unit, and several interface boards. The power supply unit is connected to the control unit and several interface boards. The control unit is connected to the upper computer and several interface boards. The several interface boards are connected to the sub-module control board to be tested and the slave test tooling.

[0010] In the technical solution of the embodiment of the present application, the interface board in the main test tooling can be integrated with the conventional interface tooling, can be used compatibly, and has scalability and configurability. In addition, each interface board shares the power supply unit and the control unit, and there is no need to develop additional hardware boards.

[0011] In some embodiments, the control unit includes a valve base control unit, the interface board includes a valve base control unit interface, and the valve base control unit is connected to the sub-module control board to be tested through the valve base control unit interface.

[0012] In the technical solution of the embodiment of the present application, the method of using the valve base control simulation unit in the main test tooling to implement the valve base control device saves hardware costs.

[0013] In some embodiments, the control unit further includes a first battery management unit, the interface board further includes a first battery management unit interface, and the first battery management unit is connected to the sub-module control board to be tested through the first battery management unit interface.

[0014] In the technical solution of the embodiment of the present application, by configuring the instructions or data between the main test tooling and the first battery management unit, and between the sub-module control board to be tested and the first battery management unit through the upper computer via the main test tooling, necessary battery management signals and data can be provided for the normal operation of the sub-module control board to be tested, realizing the physical test of the sub-module control board in the energy storage valve sub-module, and making the test of the energy storage valve sub-module control board system more sufficient.

[0015] In some embodiments, the control unit further includes a bypass switch trigger and monitoring unit and a busbar switch trigger and monitoring unit. The interface board further includes a bypass switch interface and a busbar switch interface. The bypass switch trigger and monitoring unit is connected to the sub-module control board to be tested through the bypass switch interface, and the busbar switch trigger and monitoring unit is connected to the sub-module control board to be tested through the busbar switch interface.

[0016] In the technical solution of the embodiment of the present application, the host computer, through the main test tooling, triggers various signals and data necessary for the normal operation of the bypass switch and the bus switch of the monitoring unit and the bus switch triggering and monitoring unit to configure the bypass switch and the bus switch of the to-be-tested sub-module control board, and simulates various signals and data necessary for the actual interaction with the battery management control board through the battery management unit interface, which can provide necessary switch signals and data for the normal operation of the to-be-tested sub-module control board, and realize the physical test of the to-be-tested sub-module control board.

[0017] In some embodiments, the interface board further includes an adjacent sub-module control board interface, and the adjacent sub-module control board interface is connected to the to-be-tested sub-module control board.

[0018] In the technical solution of the embodiment of the present application, configuring an adjacent sub-module control board interface in the main test tooling can simulate an adjacent sub-module control board in the main test tooling. In this way, the number of tests for the to-be-tested sub-module control board can be expanded, and a way to conduct a physical test on the to-be-tested sub-module control board is also provided.

[0019] In some embodiments, the slave test tooling includes an adjacent sub-module control board interface, and the adjacent sub-module control board interface is connected to the to-be-tested sub-module control board.

[0020] In the technical solution of the embodiment of the present application, a method of configuring an adjacent sub-module control board (i.e., sub-module control unit) in the slave test tooling is provided. In this way, the number of tests for the to-be-tested sub-module control board can be expanded, and another way to conduct a physical test on the to-be-tested sub-module control board is also provided.

[0021] In some embodiments, the slave test tooling further includes a power circuit unit, and the power circuit unit includes a power circuit or is used to simulate a power circuit, and the power circuit unit is connected to the to-be-tested sub-module control board.

[0022] In the technical solution of the embodiment of the present application, the power circuit unit of the slave test tooling provides an object for the to-be-tested sub-module control board to trigger control and feedback detection of the power circuit, and can provide necessary trigger and detection objects for the normal operation of the to-be-tested sub-module control board, realizing the physical test of the to-be-tested sub-module control board.

[0023] In some embodiments, the slave test tooling further includes a second battery management unit and a second battery management unit interface, and the second battery management unit is connected to the to-be-tested sub-module control board through the second battery management unit interface.

[0024] In the technical solution of the embodiment of the present application, the battery management simulation unit is arranged in the slave test tooling. The host computer can configure instructions or data between the master and slave test toolings and the second battery management unit, as well as between the sub-module control board under test and the second battery management unit through the master test tooling, which can provide necessary battery management signals and data for the normal operation of the sub-module control board under test, realizing the physical test of the sub-module control board under test inside the energy storage valve sub-module, and making the system test of the energy storage valve sub-module control board more sufficient.

[0025] In some embodiments, it further includes a battery management control board, and the battery management control board is connected to the sub-module control board under test.

[0026] In the technical solution of the embodiment of the present application, an additional battery management control board is provided to provide necessary battery management signals and data for the normal operation of the sub-module control board under test, realizing the physical test of the sub-module control board under test inside the energy storage valve sub-module, and making the system test of the energy storage valve sub-module control board more sufficient.

[0027] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically illustrates the specific embodiments of the present application. Brief Description of the Drawings

[0028] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0029] Figure 1 It is a schematic structural diagram of an energy storage valve provided by an embodiment of the present application;

[0030] Figure 2 It is a schematic circuit diagram of an energy storage valve sub-module provided by an embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of single-link redundant communication of an energy storage valve provided by an embodiment of the present application;

[0032] Figure 4 It is a schematic structural diagram of an energy storage valve sub-module control board test system provided by an embodiment of the present application;

[0033] Figure 5 It is a schematic structural diagram of a test tooling in an energy storage valve sub-module control board test system provided by an embodiment of the present application;

[0034] Figure 6 Schematic structural diagram of the energy storage valve sub-module control board test system provided by an embodiment of the present application;

[0035] Figure 7 Schematic structural diagram of the energy storage valve sub-module control board test system provided by an embodiment of the present application;

[0036] Figure 8 Schematic structural diagram of the energy storage valve sub-module control board test system provided by an embodiment of the present application. Detailed implementation manners

[0037] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, and therefore are only examples and cannot be used to limit the protection scope of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0040] Referring to "embodiments" herein means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0041] In the description of the embodiments of the present application, the term " / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0042] In the description of the embodiments of the present application, the term "a plurality" means two or more (including two). Similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).

[0043] Figure 1 The figure is a schematic diagram of a high-voltage direct-connected energy storage valve (hereinafter referred to as the energy storage valve). As Figure 1 shown, 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 and 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 respectively represented by SM1#m and SM2#m, and m is 1, 2, 3,..., n. The protection devices S1 and S2 are, for example, contactors or circuit breakers.

[0044] Among them, the topology of the energy storage valve sub-module is as Figure 2 shown, including a bypass switch K1, a busbar switch 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 busbars. 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 cells. In addition, Figure 2 A1 and A2 in it represent two connection ports. Each energy storage valve sub-module accesses the main circuit of the energy storage valve through the two connection ports A1 and A2 to be connected to an external circuit through the main circuit. In other embodiments, Figure 2 the energy storage valve sub-module shown can also be used for an AC energy storage valve.

[0045] Generally, in the field of high-voltage DC direct-connected energy storage valves below 35 kV, a dual communication link cross-redundancy communication method between a sub-module controller (SMC) and a valve base controller (VBC) is usually adopted. In extra-high voltage (for example, above 1000 kV) DC direct-connected energy storage valves, due to the large number of sub-modules, if a dual communication link redundancy communication method is adopted between the sub-module and the valve base controller, a large amount of communication media (such as optical fibers) is required. Therefore, a single-link connection between the SMC and the VBC is adopted, and a redundant communication method connected to the SMC of the adjacent sub-module, that is, a single-link redundant communication connection method of VBC-SMC-SMC-VBC, see Figure 3 .

[0046] In some cases, the VBC is used to provide control instructions for the power circuit to the sub-module control board 400 to be tested, controlling the closing and opening of the IBGT; it is used to monitor the issuance and feedback of instructions for the power circuit, battery module BT1, bypass switch K1, bus switch K2, etc. with the sub-module control board 400 to be tested. In this embodiment, the valve base control unit 210 includes a VBC or an analog VBC.

[0047] In some cases, the SMC communicates with the VBC and adjacent SMCs. The SMC is used for temperature monitoring of the battery module BT1, monitoring the issuance and feedback of instructions for the IBGT in the power circuit, voltage conversion and monitoring of the power circuit, voltage detection of the filter capacitor C1, hardware overlimit monitoring, triggering and status monitoring of the bypass switch K1 and the bus switch K2, etc.

[0048] In view of this, the embodiment of the present application provides a test system for an energy storage valve sub-module control board, which can use a test tooling to simulate the VBC and SMC to perform physical tests on the sub-module control board of at least one energy storage valve sub-module for redundant communication, fault insertion and other cooperation logics, and complete the physical test of the single-link redundant communication of the sub-module control board.

[0049] According to some embodiments of the present application, optionally, please continue to refer to Figure 4 , Figure 4 FIG. shows a schematic structural diagram of a test system for an energy storage valve sub-module control board provided by an embodiment of the present application. For the convenience of description, only the parts related to this embodiment are shown and are described in detail as follows:

[0050] The test system for the energy storage valve sub-module control board includes a host computer 100, a main test tooling 200, a slave test tooling 300, and a sub-module control board 400 to be tested. The slave test tooling 300 is used to simulate the sub-module control board or includes a sub-module control unit 310. The main test tooling 200 includes a valve base control unit 210. The main test tooling 200 is connected to the host computer 100, the sub-module control board 400 to be tested, and the slave test tooling 300. The slave test tooling 300 is connected to the sub-module control board 400 to be tested.

[0051] Among them, the host computer 100 is, for example, a personal computer (PC), which is used for monitoring the issuance and feedback of instructions for the entire test system of the energy storage valve sub-module control board, as well as recording and saving the test results, etc. The valve base control unit 210 is the main control device of the energy storage valve. The host computer 100 and the main test tooling 200 can be communicatively connected through a network cable. The main test tooling 200, the slave test tooling 300, and the sub-module control board 400 to be tested are respectively connected by optical communication to improve the transmission speed and stability of signals.

[0052] Among them, the valve base control unit 210 includes a VBC or an analog VBC. The sub-module control unit 310 includes an SMC or an analog SMC, and is connected to the sub-module control board 400 to be tested and the valve base control unit 210 to achieve single-link redundant communication.

[0053] Exemplarily, the test process is as follows:

[0054] Redundant communication function test: After checking that the sub-module control board 400 to be tested is operating normally. First, disconnect the upstream communication between the sub-module control board 400 to be tested and the main test tooling 200, and observe the status information of the sub-module control board 400 that can still be received through the slave test tooling 300 or the main test tooling 200 through the slave test tooling 300, including the communication disconnection warning information with the valve base control unit 210 of the main test tooling 200. Subsequently, disconnect the downstream communication between the sub-module control board 400 to be tested and the main test tooling 200, and send a command signal of the valve base control unit 210 through the slave test tooling 300 or the main test tooling 200 through the slave test tooling 300, and observe whether the sub-module control board 400 to be tested can correctly receive the command information and execute it.

[0055] Adjacent energy storage valve sub-module fault insertion test: After checking that the sub-module control board 400 to be tested is operating normally, the content of the data packet sent by the sub-module control unit 310 of the slave test tooling 300 can be changed through the host computer 100, and the fault in the communication packet of the sub-module control unit 310 is set to simulate the fault scenario of the sub-module control unit 310. Observe whether the sub-module control board 400 to be tested can output an alarm message according to the design logic and send it to the valve base control unit 210 of the main test tooling 200 through the host computer 100 or the fault recording device. In addition, by designing a status sequence, the host computer 100 can further simulate information such as bypass commands sent by the valve base control unit 210 of the main test tooling 200 after receiving a fault message, and verify whether the sub-module control board 400 to be tested can send the bypass command to the sub-module control unit 310 after receiving the command.

[0056] In the technical solution of the embodiment of the present application, the commands or data between the valve base control unit 210 of the main test tooling 200 and the sub-module control board 400 to be tested, and between the sub-module control board 400 to be tested and the sub-module control unit 310 of the slave test tooling 300 are configured through the host computer 100 via the main test tooling 200 and the slave test tooling 300, realizing the physical test of the sub-module control board 400 to be tested in the single-link redundant communication of VBC-SMC-SMC-VBC, making the test of the energy storage valve sub-module control board system more sufficient.

[0057] According to some embodiments of the present application, optionally, please continue to refer to Figure 5 , Figure 5The structural schematic diagram of a test system for an energy storage valve sub-module control board provided by an embodiment of the present application is shown. For the sake of convenience of description, only the parts related to this embodiment are shown and are described in detail as follows:

[0058] The main test tooling 200 includes a power supply unit 220, a control unit 230, and a plurality of interface boards 240. The power supply unit 220 is connected to the control unit 230 and the plurality of interface boards 240. The control unit 230 is connected to the host computer 100 and the plurality of interface boards 240. The plurality of interface boards 240 are connected to the sub-module control board 400 to be tested and the slave test tooling 300.

[0059] The control unit 230 includes a central processing unit (CPU), which is used for the main test tooling 200, or includes the management and control of the slave test tooling 300, and performs interactive communication with the outside through the interface board 240. The interface board 240 can also be integrated in a conventional interface tooling, and has scalability and configurability. Each interface board 240 shares the power supply unit 220 and the control unit 230, and there is no need to develop additional hardware boards.

[0060] Exemplarily, each interface board 240 is provided with a plurality of optical fiber conversion interfaces, which can send communication messages or modulate optical signals. Each optical fiber conversion interface can be configured into a specific function interface through a configuration file, such as an analog battery management control board (BMC) interface, a bypass switch interface, an isolating switch interface, an adjacent SMC redundant communication interface (communicating with the sub-module control unit 310), etc.

[0061] In the technical solution of the embodiment of the present application, the interface board 240 in the main test tooling 200 can be integrated with a conventional interface tooling, can be used compatibly, and has scalability and configurability; in addition, each interface board 240 shares the power supply unit 220 and the control unit 230, and there is no need to develop additional hardware boards.

[0062] According to some embodiments of the present application, optionally, please continue to refer to Figure 6 , Figure 6 The structural schematic diagram of a test system for an energy storage valve sub-module control board provided by an embodiment of the present application is shown. For the sake of convenience of description, only the parts related to this embodiment are shown and are described in detail as follows:

[0063] The control unit 230 includes a valve base control unit 210. The interface board 240 includes a valve base control unit interface P1. The valve base control unit 210 is connected to the sub-module control board 400 to be tested through the valve base control unit interface P1.

[0064] It can be understood that the sub-module control board 400 to be tested also has a valve base control unit interface P11 that can be connected to the valve base control unit interface P1. Exemplarily, both the valve base control unit interfaces P1 and P11 are optical fiber conversion interfaces.

[0065] In the technical solution of the embodiment of the present application, in the main test tooling 200, the valve base control unit 210 is used to simulate the VBC, which saves the hardware cost. In other embodiments, the valve base control unit 210 may directly adopt the physical entity of the valve base control device of the energy storage valve.

[0066] According to some embodiments of the present application, optionally, please continue to refer to Figure 6 , the control unit 230 further includes a first battery management unit 231, the interface board 240 further includes a first battery management unit interface P2, and the first battery management unit 231 is connected to the sub-module control board 400 to be tested through the first battery management unit interface P2.

[0067] Generally, the battery management unit (BMC) cooperates with the SMC to monitor and manage the battery module BT1 of the energy storage valve sub-module; optionally, the battery management unit can also issue and feedback instructions for bypass switches, busbar switches, etc. in the energy storage valve sub-module. In this embodiment, in order to simplify the structure of the main test tooling 200, the first battery management unit 231 implements the battery management unit in an analog manner, and can provide necessary battery management signals and data for the normal operation of the sub-module control board 400 to be tested.

[0068] It can be understood that the sub-module control board 400 to be tested also has a battery management unit interface P22 that can be connected to the first battery management unit interface P2. Exemplarily, the first battery management unit interface P2 and the battery management unit interface P22 are both fiber optic conversion interfaces.

[0069] In the technical solution of the embodiment of the present application, the host computer 100 configures the instructions or data between the main test tooling 200 and the first battery management unit 231, and between the sub-module control board 400 to be tested and the first battery management unit 231 through the main test tooling 200, which can provide necessary battery management signals and data for the normal operation of the sub-module control board 400 to be tested, and realizes the physical test of the sub-module control board 400 inside the energy storage valve sub-module, making the system test of the energy storage valve sub-module control board more sufficient.

[0070] According to some embodiments of the present application, optionally, please continue to refer to Figure 6 , the control unit 230 further includes a bypass switch trigger and monitoring unit 232 and a busbar switch trigger and monitoring unit 233, the interface board 240 further includes a bypass switch interface P3 and a busbar switch interface P4, the bypass switch trigger and monitoring unit 232 is connected to the sub-module control board 400 to be tested through the bypass switch interface P3, and the busbar switch trigger and monitoring unit 233 is connected to the sub-module control board 400 to be tested through the busbar switch interface P4.

[0071] Exemplarily, the sub-module control board 400 to be tested includes a bypass switch trigger and monitoring unit 401, a bus switch trigger and monitoring unit 402, a bypass switch interface P33 (communicatively connected to the bypass switch interface P3), and a bus switch interface P44. The bypass switch trigger and monitoring unit 232 is connected to the bypass switch through the bypass switch interface P3. In the energy storage valve, the bypass switch trigger and monitoring unit 401 controls the bypass switch K1 in the energy storage valve sub-module through the bypass switch interface P33 and monitors its status. The bus switch trigger and monitoring unit 402 controls the bus switch K2 in the energy storage valve sub-module through the bus switch interface P44 and monitors its status.

[0072] In this embodiment, the bypass switch interface P33 is communicatively connected to the bypass switch interface P3, and the bus switch interface P44 is communicatively connected to the bus switch interface P4. The main test tooling 200 simulates the instructions and data for controlling the bypass switch K1 and monitoring its status through the bypass switch trigger and monitoring unit 232, and the main test tooling 200 simulates the instructions and data for controlling the bus switch K2 and monitoring its status through the bus switch trigger and monitoring unit 233, which can provide the necessary switch signals and data for the normal operation of the sub-module control board 400 to be tested.

[0073] In the technical solution of the embodiment of the present application, the host computer 100 configures various signals and data necessary for the normal operation of the bypass switch and the bus switch of the sub-module control board 400 to be tested through the main test tooling 200 via the bypass switch trigger and monitoring unit and the bus switch trigger and monitoring unit, and simulates various signals and data necessary for the actual interaction with the battery management control board through the battery management unit interface, which can provide the necessary switch signals and data for the normal operation of the sub-module control board 400 to be tested, and realizes the physical test of the sub-module control board 400 to be tested.

[0074] According to some embodiments of the present application, optionally, please continue to refer to Figure 6 that the interface board 240 further includes an adjacent sub-module control board interface P5, and the adjacent sub-module control board interface P5 is connected to the sub-module control board 400 to be tested.

[0075] It can be understood that the sub-module control board 400 to be tested also has an adjacent sub-module control board interface P55 that can be connected to the adjacent sub-module control board interface P5. The sub-module control board 400 to be tested communicates with the sub-module control unit 310 in the slave test tooling 300 through the main test tooling 200 for communication testing.

[0076] In the technical solution of the embodiment of the present application, the number of tests of the sub-module control board 400 to be tested can be expanded, and a way to perform a physical test on the sub-module control board 400 to be tested is also provided.

[0077] According to some embodiments of the present application, optionally, please continue to refer to Figure 7 , Figure 7 which shows a schematic structural diagram of a test system for a control board of an energy storage valve sub-module provided by an embodiment of the present application. For the convenience of description, only the parts related to this embodiment are shown and are described in detail as follows:

[0078] The slave test fixture 300 includes an adjacent sub-module control board interface P6, and the adjacent sub-module control board interface P6 is connected to the sub-module control board 400 to be tested. The adjacent sub-module control board interface P6 is the above-mentioned adjacent SMC redundant communication interface and is used for communication connection with the sub-module control unit 310 in the slave test fixture 300.

[0079] It can be understood that the sub-module control board 400 to be tested also has an adjacent sub-module control board interface P55 that can be connected to the adjacent sub-module control board interface P6. In some embodiments, the adjacent sub-module control board interface P55 and the valve base control unit interface P11 are the same interface.

[0080] In the technical solution of the embodiment of the present application, a method of configuring the sub-module control unit 310 in the slave test fixture 300 is provided. In this way, the number of tests for the sub-module control board 400 to be tested can be expanded, and another way of physically testing the sub-module control board 400 is also provided.

[0081] According to some embodiments of the present application, optionally, please continue to refer to Figure 7 , the slave test fixture 300 further includes a power circuit unit 320. The power circuit unit 320 includes a power circuit or is used to simulate a power circuit, and the power circuit unit 320 is connected to the sub-module control board 400 to be tested.

[0082] The power circuit unit 320 of the slave test fixture 300 is, for example, a power circuit having an energy storage valve sub-module, or a circuit board that can simulate the working principle of the power circuit of the energy storage valve sub-module. Exemplarily, because the interfaces of each sub-module control board correspond to each other, another sub-module control board can be used as the slave test fixture 300 to simulate the working principle of the power circuit of the energy storage valve sub-module, which is convenient for connection to the sub-module control board 400 to be tested.

[0083] Among them, the power circuit includes an upper switch tube T1 and a lower switch tube T2 connected in series between the positive and negative buses. See Figure 2, therefore, the slave test fixture 300 has two switch tube interfaces P7.1 and P7.2 for the switch tube T1 and the lower switch tube T2, which are respectively connected to the power circuit unit 320. Correspondingly, the sub-module control board 400 to be tested also has drive interfaces P7.11 and P7.22 that can be respectively connected to the switch tube interfaces P7.1 and P7.2. The power circuit unit 320 receives the trigger signal from the sub-module control board 400 to be tested through the switch tube interfaces P7.1 and P7.2, and feeds back the switch state signal.

[0084] In the technical solution of the embodiment of the present application, the power circuit unit 320 of the slave test fixture 300 provides an object for the sub-module control board 400 to be tested for power circuit trigger control and feedback detection, and can provide necessary trigger and detection objects for the normal operation of the sub-module control board 400 to be tested, so as to realize the physical test of the sub-module control board 400 to be tested.

[0085] According to some embodiments of the present application, optionally, please continue to refer to Figure 7 , the slave test fixture 300 further includes a second battery management unit 330 and a second battery management unit interface P8, and the second battery management unit 330 is connected to the sub-module control board 400 to be tested through the second battery management unit interface P8.

[0086] It can be understood that the sub-module control board 400 to be tested also has a battery management unit interface P88 that can be connected to the second battery management unit interface P8. The battery management unit interface P88 and the battery management unit interface P22 can be the same interface; when they are different interfaces, they can be used to expand the test of multiple sub-module control boards 400.

[0087] By setting the battery management unit in the slave test fixture 300, the host computer 100 can configure the instructions or data between the master and slave test fixtures 300 and the second battery management unit 330, and between the sub-module control board 400 to be tested and the second battery management unit 330 through the master test fixture 200 to the slave test fixture 300, which can provide necessary battery management signals and data for the normal operation of the sub-module control board 400 to be tested, realize the physical test of the sub-module control board 400 to be tested inside the energy storage valve sub-module, and make the system test of the energy storage valve sub-module control board more sufficient.

[0088] According to some embodiments of the present application, optionally, please continue to refer to Figure 8 , Figure 8 shows a schematic structural diagram of an energy storage valve sub-module control board test system provided by an embodiment of the present application. For the convenience of description, only the parts related to this embodiment are shown and are described in detail as follows:

[0089] The energy storage valve sub-module control board test system further includes a battery management control board 500, which is connected to the sub-module control board 400 to be tested.

[0090] Among them, the battery management control board 500 is connected to the battery management unit interface P22 of the sub-module control board 400 to be tested. The battery management control board 500 can be connected to the main test tooling 200 or the slave test tooling 300 ( Figure 8 as indicated by the dotted line in the figure). The host computer 100 configures the battery management control board 500 to transmit to the sub-module control board 400 to be tested through the main test tooling 200 or the slave test tooling 300, providing necessary battery management signals and data for the normal operation of the sub-module control board 400 to be tested.

[0091] In the technical solution of the embodiment of the present application, an additional battery management control board 500 is provided to provide necessary battery management signals and data for the normal operation of the sub-module control board 400 to be tested, realizing the physical test of the sub-module control board 400 inside the energy storage valve sub-module, making the system test of the energy storage valve sub-module control board more sufficient.

[0092] According to some embodiments of the present application, the construction process of the energy storage valve sub-module control board test system is as follows:

[0093] Build a test environment. Build a test environment, connect all the interfaces of the sub-module control board 400 to be tested to the main test tooling 200 and the slave test tooling 300, and then start the main test tooling 200 and the slave test tooling 300.

[0094] After the main test tooling 200 and the slave test tooling 300 are powered on, the initialization process loads the configuration XML file and the communication point table XML of the host computer 100, and assigns default values to the output interfaces of the main test tooling 200. After the sub-module control board 400 to be tested receives the default values, it can clear faults, and the status of the sub-module control board 400 to be tested is monitored in real time through the host computer 100.

[0095] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some 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 all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features 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. A test system for an energy storage valve sub-module control board, characterized in that It includes a host computer, a main test tooling, and a slave test tooling. The slave test tooling includes a sub-module control unit, and the main test tooling includes a valve base control unit. The main test tooling is connected to the host computer, the sub-module control board to be tested, and the slave test tooling, and the slave test tooling is connected to the sub-module control board to be tested.

2. The test system for the energy storage valve sub-module control board according to claim 1, wherein The main test tooling includes a power supply unit, a control unit, and a plurality of interface boards. The power supply unit is connected to the control unit and the plurality of interface boards. The control unit is connected to the host computer and the plurality of interface boards. The plurality of interface boards are connected to the sub-module control board to be tested and the slave test tooling.

3. The energy storage valve sub-module control board testing system according to claim 2, characterized in that, The control unit includes the valve base control unit. The interface board includes a valve base control unit interface. The valve base control unit is connected to the sub-module control board to be tested through the valve base control unit interface.

4. The energy storage valve sub-module control board test system according to claim 3, wherein, The control unit further includes a first battery management unit. The interface board further includes a first battery management unit interface. The first battery management unit is connected to the sub-module control board to be tested through the first battery management unit interface.

5. The energy storage valve sub-module control board testing system according to claim 3, characterized in that, The control unit further includes a bypass switch trigger and monitoring unit and a busbar switch trigger and monitoring unit. The interface board further includes a bypass switch interface and a busbar switch interface. The bypass switch trigger and monitoring unit is connected to the sub-module control board to be tested through the bypass switch interface. The busbar switch trigger and monitoring unit is connected to the sub-module control board to be tested through the busbar switch interface.

6. The test system for the energy storage valve sub-module control board according to any one of claims 2 to 5, characterized in that The interface board further includes an adjacent sub-module control board interface, and the adjacent sub-module control board interface is connected to the sub-module control board to be tested.

7. The test system for the energy storage valve sub-module control board according to any one of claims 1 to 3, characterized in that The slave test tooling includes an adjacent sub-module control board interface, and the adjacent sub-module control board interface is connected to the sub-module control board to be tested.

8. The energy storage valve sub-module control board test system according to claim 7, characterized in that, The slave test tooling further includes a power circuit unit. The power circuit unit includes a power circuit or is used to simulate a power circuit. The power circuit unit is connected to the sub-module control board to be tested.

9. The test system for the energy storage valve sub-module control board according to claim 7, wherein, It further includes a second battery management unit and a second battery management unit interface. The second battery management unit is connected to the sub-module control board to be tested through the second battery management unit interface.

10. The energy storage valve sub-module control board testing system according to any one of claims 1 to 3, characterized in that, It further includes a battery management control board, and the battery management control board is connected to the sub-module control board to be tested.

Images