BMS simulation test cabinet

Abstract

The utility model relates to the technical field of simulation batteries, in particular to a BMS simulation test cabinet. The BMS simulation test cabinet specifically comprises a battery simulation cluster rack, a first rack, a second rack and a PC. The battery simulation cluster rack comprises a plurality of battery simulation devices installed on the battery simulation cluster rack, the plurality of battery simulation devices are installed on the cabinet body, and the battery simulation devices are provided with a plurality of battery simulation units used for simulating chemical batteries; the first rack comprises acquisition equipment mounted on the first rack, and the acquisition equipment is connected with the battery simulation equipment; the second rack comprises a general test mainboard and a plurality of tested devices which are installed on the second rack, the tested devices are connected with the acquisition device, and the tested devices are connected with the PC through the general test mainboard. The device has the advantages of being small in size, simple in building environment and convenient to test.

Description

Technical Field

[0001] The utility model relates to the technical field of simulated batteries, in particular to a BMS simulation test cabinet. Background Art

[0002] With the development of the energy storage industry, BMS (Battery Management System) plays a crucial role in energy storage battery management and plays a crucial role. The stability of the BMS system determines the stability and longevity of the energy storage system. In actual energy storage testing environments, it is impossible to build a complete electrochemical energy storage system to test BMS functions and business processes. The high cost and harsh construction environment require the design of a BMS simulation test cabinet to replace the actual battery testing environment. This requires a complete system for BMS simulation testing.

[0003] Therefore, a BMS simulation test cabinet is provided to address the deficiencies in the prior art. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a BMS simulation test cabinet, which solves the problem that the actual energy storage test environment is bulky, difficult to build, and unable to perform BMS testing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A BMS simulation test cabinet comprises: a battery simulation cluster rack, a first rack, a second rack and a PC;

[0007] A battery simulation cluster rack, comprising a plurality of battery simulation devices mounted on the battery simulation cluster rack, wherein the plurality of battery simulation devices are mounted on the cabinet, and the battery simulation devices are provided with a plurality of battery simulation units for simulating chemical batteries;

[0008] A first rack, comprising a collection device mounted on the first rack, the collection device being connected to the battery simulation device;

[0009] The second rack includes a universal test mainboard and a plurality of tested devices installed on the second rack. The tested devices are connected to the acquisition device, and the tested devices are connected to the PC through the universal test mainboard.

[0010] As a further improvement of the technical solution of the present invention, the acquisition device includes several first adapter boards and BMU main boards, each of the BMU main boards is connected to two of the adapter boards, and the BMU main board is connected to the battery simulation device through the first adapter board.

[0011] As a further improvement of the technical solution of the present utility model, the first adapter board includes a plurality of terminal interfaces, and the terminal interfaces of the first adapter board are connected to the signal terminal interfaces of the battery simulation device.

[0012] As a further improvement of the technical solution of the present utility model, the terminal interface includes a Phoenix terminal, and the Phoenix terminal is respectively connected to the positive and negative poles of the battery simulation device to form a total voltage line.

[0013] As a further improvement of the technical solution of the present utility model, the device under test includes a BCMS, a BAMS, an EMMU, a high-voltage metering unit and a second adapter board. The BCMS, BAMS, EMMU and the high-voltage metering unit are all connected to the universal test main board through the second adapter board, the BCMS is connected to the BAMS, the BCMS is connected to the high-voltage metering unit, and the BCMS is connected to the battery simulation cluster rack.

[0014] As a further improvement of the technical solution of the present utility model, the second rack further includes a switch, the BCMS, BAMS, EMMU and universal test mainboard are all connected to the switch, and the switch is connected to the PC.

[0015] As a further improvement of the technical solution of the present invention, the battery simulation cluster rack also includes a center machine and a first power socket. The center machine is located above the battery simulation device, and the first power socket controls the power supply of the center machine and several of the battery simulation devices.

[0016] As a further improvement of the technical solution of the present invention, the first rack also includes a programmable source, an electronic load and a second power socket. The programmable source is used to power the BMU mainboard, the electronic load is used to balance the power supply voltage of the BMU mainboard, and the second power socket controls the power supply of the programmable source and the electronic load.

[0017] As a further improvement of the technical solution of the present invention, the second rack also includes a switching power supply and a third power socket. The switching power supply powers the BCMS, BAMS, EMMU, high-voltage metering unit and universal test mainboard, and the third power socket controls the power supply of the switching power supply and the switch.

[0018] As a further improvement of the technical solution of the present invention, an air circuit breaker is also included. The battery simulation cluster rack, the first rack and the second rack are all provided with an air circuit breaker.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] In this BMS simulation test cabinet, a miniaturized battery simulation unit replaces bulky chemical batteries to simulate a battery cluster environment. The first and second racks simulate the environment of the device under test, which is connected to a PC via a universal test motherboard. When a signal is needed for testing, it can be output via the PC's Ethernet to the universal test motherboard, which then transmits the signal to the device under test. Conversely, the signal output by the device under test can also be converted by the universal test motherboard and then transmitted to the PC, completing the testing of the entire BMS test cabinet. This BMS simulation test cabinet is characterized by its small size, simple setup environment, and ease of testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technology of the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the BMS simulation test cabinet of the utility model;

[0023] Figure 2 This is the main view of the BMS simulation test cabinet of the utility model;

[0024] Figure 3 It is a rear view of the BMS simulation test cabinet of the present utility model.

[0025] In the picture:

[0026] 1. Battery simulation cluster rack; 11. Battery simulation equipment; 12. Mid-position machine; 13. First power socket;

[0027] 2. First rack; 21. Programmable power source; 22. Electronic load; 23. Second power socket;

[0028] 3. Second rack; 31. Device under test; 32. Switch; 33. Switching power supply; 34. Third power socket;

[0029] 4. Air circuit breaker. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0031] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. In addition, the terms "upper," "lower," "left," and "right" used in this utility model are only used with respect to the relative positions of the components of the utility model in the accompanying drawings.

[0032] Reference Figures 1 to 3 , a BMS simulation test cabinet, comprising: a battery simulation cluster rack 1, a first rack 2, a second rack 3 and a PC;

[0033] In one embodiment, a battery simulation cluster rack 1 includes a cabinet and several battery simulation devices 11, which are installed on the cabinet. The battery simulation devices 11 are provided with several battery simulation units for simulating chemical batteries. The first rack 2 includes an acquisition device installed on the first rack 2, which is connected to the battery simulation device 11. The second rack 3 includes a universal test motherboard installed on the second rack 3 and several devices under test 31, which are connected to the acquisition device. The devices under test 31 are connected to the PC through the universal test motherboard.

[0034] The battery cluster environment is simulated using a miniaturized battery simulation unit, replacing bulky chemical batteries. The first and second racks 2 and 3 simulate the environment of the device under test 31, which is connected to a PC via a universal test motherboard. When a signal is needed for testing, it can be output via the PC's Ethernet to the universal test motherboard, which then transmits it to the device under test 31. Conversely, the signal output by the device under test 31 can also be converted by the universal test motherboard and then transmitted to the PC, completing the entire BMS test cabinet test. This BMS simulation test cabinet is compact, simple to set up, and easy to test.

[0035] In one embodiment, the acquisition device includes several first adapter boards and a BMU mainboard. Each BMU mainboard is connected to two adapter boards, and the BMU mainboard is connected to the battery simulation device 11 through the first adapter board. The first adapter board has a transfer function, converting the standard signals, voltage, and temperature signals of the battery simulation device 11 into signals that can be connected to the terminals of the BMU mainboard. The BMU mainboards can communicate with each other via a daisy chain, RS485, or CAN bus, and the communication line is finally connected to the BCMS of the BMS device under test 31; the BMU mainboard completes the acquisition of signals such as the voltage and temperature of the battery simulation unit, and these signals are finally uploaded to the BCMS device. The BCMS manages the charge or discharge balance of the battery simulation unit based on the collected voltage signal, and determines whether to turn on cooling based on the temperature signal. The first adapter board is a BMU adapter board.

[0036] In one embodiment, the first adapter board includes several terminal interfaces. The terminal interface of the first adapter board is connected to the signal terminal interface of the battery simulation device 11, and the terminal interface at the other end of the first adapter board is connected to the terminal interface of the universal test motherboard. The terminal interface includes Phoenix terminals. There are two Phoenix terminals on the same side where the first adapter board is connected to the BMU motherboard connection board. The Phoenix terminals are respectively connected to the positive and negative poles of the battery simulation device 11, connecting the voltage of the battery simulation cluster rack 1 in series, thereby forming a total voltage line. The high-voltage metering unit is connected to the total voltage line on the first adapter board.

[0037] In one embodiment, the first rack 2 further includes a programmable power source 21, an electronic load 22, and a second power socket 23. The programmable power source 21 is used to power the BMU mainboard, the electronic load 22 is used to balance the supply voltage of the BMU mainboard, and the second power socket 23 controls the power supply of the programmable power source 21 and the electronic load 22. Preferably, the programmable power source 21 is placed above the electronic load 22 and is powered by a 220VAC power supply, outputting a 24V power supply that powers all BMU mainboards. The electronic load 22 is placed above the first BMU mainboard and is powered by a 220VAC power supply. The output load is adjustable, and the load output is connected in parallel with the output of the programmable power source 21 to prevent the BMU mainboard supply voltage from increasing during balancing.

[0038] In one embodiment, the device under test 31 includes BCMS, BAMS, EMMU, a high-voltage metering unit, and a second adapter board. The BCMS, BAMS, EMMU, and the high-voltage metering unit are all connected to the universal test mainboard through the second adapter board. The BCMS is connected to the BAMS via an Ethernet interface, the BCMS is connected to the high-voltage metering unit via an SPI communication interface, and the BCMS is connected to the battery simulation device 11 via a daisy-chain connection. Preferably, the BCMS, BAMS, and EMMU also include several RS485 interfaces, several RS232 interfaces, several CAN interfaces, several DI interfaces, several DO interfaces, and several AI interfaces. All of these interfaces will be connected to the second adapter board. The second adapter board is divided into two groups of signals. One group of signals is connected to one or more universal test mainboards, and the other group of signals is connected to the device under test 31 BCMS, BAMS, EMMU, etc. The second adapter board is the adapter board for the device under test 31.

[0039] In one embodiment, second rack 3 further includes a switch 32. The BCMS, BAMS, EMMU, and universal test motherboard are all connected to switch 32 via Ethernet interfaces. Switch 32 is also connected to a PC via Ethernet interfaces. Preferably, switch 32 is placed above switching power supply 33 and powered by a 220VAC power supply. Switch 32 can connect to Ethernet devices and also has an Ethernet interface connected to a PC, which exchanges data with the PC via the Ethernet interface.

[0040] In one embodiment, the second rack 3 further includes a battery simulation device 11 for simulating temperature. The temperature signal is connected to the EMMU to simulate the temperature signal of a copper plate, and is placed on the top of the second rack 3 .

[0041] In one embodiment, the second rack 3 further includes a switching power supply 33 and a third power socket 34. The switching power supply 33 powers the BCMS, BAMS, EMMU, high-voltage metering unit and universal test mainboard, and the third power socket 34 controls the power supply of the switching power supply 33 and the switch 32.

[0042] In one embodiment, the battery simulation cluster rack 1 further includes a central computer 12 and a first power socket 13 . The central computer 12 is located above the battery simulation device 11 . The first power socket 13 controls the power supply of the central computer 12 and the plurality of battery simulation devices 11 .

[0043] In one embodiment, the battery simulation cluster rack 1, the first rack 2 and the second rack 3 are all provided with cabinet shelf brackets, which divide the rack into multiple spaces with equal spacing, and support the electronic equipment to be installed longitudinally on the rack.

[0044] Similarly, battery simulation cluster rack 1, first rack 2, and second rack 3 are each equipped with air circuit breakers 4 to control power outages for the entire rack in the event of an abnormality. These circuit breakers, equipped with leakage protection, automatically disconnect the power supply in the event of a leakage. Furthermore, in an emergency, they can also disconnect the power to the corresponding rack by tripping the circuit breaker, ensuring safety.

[0045] For other contents of the BMS simulation test cabinet described in the present invention, please refer to the prior art and will not be repeated here.

[0046] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A BMS simulation test cabinet, characterized in that: include: Battery simulation cluster rack, first rack, second rack and PC; A battery simulation cluster rack, comprising a plurality of battery simulation devices mounted on the battery simulation cluster rack, wherein the plurality of battery simulation devices are mounted on the cabinet, and the battery simulation devices are provided with a plurality of battery simulation units for simulating chemical batteries; A first rack, comprising a collection device mounted on the first rack, the collection device being connected to the battery simulation device; The second rack includes a universal test mainboard and a plurality of tested devices installed on the second rack. The tested devices are connected to the acquisition device, and the tested devices are connected to the PC through the universal test mainboard.

2. A BMS simulation test cabinet according to claim 1, characterized in that: The acquisition device includes several first adapter boards and a BMU mainboard. Each of the BMU mainboards is connected to two of the adapter boards. The BMU mainboard is connected to the battery simulation device through the first adapter boards.

3. A BMS simulation test cabinet according to claim 2, characterized in that: The first adapter board includes a plurality of terminal interfaces, and the terminal interfaces of the first adapter board are connected to the signal terminal interfaces of the battery simulation device.

4. A BMS simulation test cabinet according to claim 3, characterized in that: The terminal interface includes a Phoenix terminal, and the Phoenix terminal is respectively connected to the positive and negative electrodes of the battery simulation device to form a total voltage line.

5. The BMS simulation test cabinet according to claim 1, characterized in that: The device under test includes a BCMS, a BAMS, an EMMU, a high-voltage metering unit and a second adapter board. The BCMS, BAMS, EMMU and the high-voltage metering unit are all connected to the universal test main board through the second adapter board. The BCMS is connected to the BAMS, the BCMS is connected to the high-voltage metering unit, and the BCMS is connected to the battery simulation cluster rack.

6. The BMS simulation test cabinet according to claim 5, characterized in that: The second rack further includes a switch, the BCMS, BAMS, EMMU and universal test mainboard are all connected to the switch, and the switch is connected to the PC.

7. The BMS simulation test cabinet according to claim 1, characterized in that: The battery simulation cluster rack further includes a center computer and a first power socket. The center computer is located above the battery simulation devices. The first power socket controls the power supply of the center computer and a plurality of the battery simulation devices.

8. The BMS simulation test cabinet according to claim 2, characterized in that: The first rack also includes a programmable source, an electronic load, and a second power socket. The programmable source is used to power the BMU mainboard, the electronic load is used to balance the power supply voltage of the BMU mainboard, and the second power socket controls the power supply of the programmable source and the electronic load.

9. The BMS simulation test cabinet according to claim 6, characterized in that: The second rack also includes a switching power supply and a third power socket. The switching power supply powers the BCMS, BAMS, EMMU, high-voltage metering unit and universal test mainboard. The third power socket controls the power supply of the switching power supply and the switch.

10. The BMS simulation test cabinet according to claim 1, characterized in that: It also includes an air circuit breaker, and the battery simulation cluster rack, the first rack and the second rack are all provided with an air circuit breaker.

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