Energy storage container test integrated system

Abstract

The utility model provides an energy storage container test integrated system, which comprises an upper computer, a control module, a CAN communication test module, a 485 communication test module and a withstand voltage insulation test module, and is characterized in that the upper computer is electrically connected with the control module and is used for writing data into the control module; a CAN communication device needing to be tested in an energy storage container communicates with a control module through a CAN communication test module, a 485 communication device needing to be tested in the energy storage container communicates with the control module through a 485 communication test module, and CAN communication and 485 communication are tested through cooperation of an upper computer and the control module. Required withstand voltage values and test time parameters are set through the upper computer, withstand voltage insulation of equipment in the energy storage container is tested through the withstand voltage insulation test module, and test items are integrated into one test system, so that the test complexity is simplified, the test stability is high, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage container testing, in particular to an energy storage container testing integrated system. Background Art

[0002] The demand for lithium battery energy storage equipment is also growing, but due to its multiple system functions and high safety requirements, the system structure is particularly complex. The system consists of a battery management system, liquid cooling equipment, fire protection equipment, cabinet dehumidification equipment and other control components. To ensure the safe operation of the equipment, the energy storage container system needs to undergo various tests on each sub-equipment system before shipment to ensure that it meets the shipment requirements.

[0003] An energy storage container system with publication number CN112821433A includes an electric energy container management subsystem for collecting energy storage status data and energy storage environment data of a single energy storage container and managing the energy storage container. The electric energy container management subsystem includes: a battery management module for managing and analyzing the working conditions of all battery packs in the energy storage container; an energy storage converter for charging and discharging the battery packs in the energy storage container according to background control instructions; a power quality monitoring module for monitoring the discharge quality of the battery packs in the energy storage container; a second network switch for connecting to the battery management module, the energy storage converter and the power quality monitoring module respectively through the ModbusTCP communication protocol, and connecting to the first network switch through the Ethernet communication method; and a total power management module for connecting to multiple electric energy container management subsystems through the first network switch, obtaining energy storage status data and energy storage environment data, and monitoring the operating status of the energy storage container.

[0004] The existing energy storage container system has a complex structure and requires a large number of test instruments, which makes the test complicated and time-consuming and labor-intensive. Some test items may even interrupt other tests, which must wait for completion before continuing other tests, resulting in low test efficiency. Utility Model Content

[0005] In view of this, the utility model proposes an energy storage container system, which integrates various test items into one test system, simplifies the test complexity, and has strong test stability, thereby improving the test efficiency.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides an energy storage container test integrated system, including a host computer, a control module, a CAN communication test module, a 485 communication test module and a withstand voltage insulation test module, wherein:

[0007] The host computer is electrically connected to the control module, and is used to write data to the control module and receive feedback signals from the control module;

[0008] The CAN communication test module, the 485 communication test module and the withstand voltage insulation test module are all electrically connected to the control module; the CAN communication test module is used to test the equipment using CAN communication in the energy storage container; the 485 communication test module is used to test the equipment using 485 communication in the energy storage container; the withstand voltage insulation test module is used to test the withstand voltage insulation test of the equipment in the energy storage container;

[0009] The host computer sends signals to corresponding devices through the CAN communication test module, the 485 communication test module and the withstand voltage insulation test module, and the devices feed back signals to the host computer.

[0010] On the basis of the above technical scheme, preferably, the CAN communication test module includes a CAN communication unit, multiple CAN communication devices and multiple first relays, wherein the input end of the CAN communication unit is electrically connected to the output end of the control module, the output end of the CAN communication unit is electrically connected to one end of the contacts of the multiple first relays respectively, the other end of the contact of the first relay is electrically connected to the corresponding CAN communication device, the coil of the first relay is electrically connected to the output end of the control module, and the control module selectively controls the on-off test of the corresponding CAN communication device through the first relays.

[0011] On the basis of the above technical solution, preferably, the CAN communication equipment includes a BMS battery cluster management unit, a BAM battery array management unit and a PCS energy storage converter unit.

[0012] On the basis of the above technical solution, preferably, the 485 communication test module includes a 485 communication unit, multiple 485 communication devices and multiple second relays, wherein the input end of the 485 communication unit is electrically connected to the output end of the control module, the output end of the 485 communication unit is electrically connected to one end of the contacts of the multiple second relays respectively, the other end of the contact of the second relay is electrically connected to the corresponding 485 communication unit, the coil of the second relay is electrically connected to the output end of the control module, and the control module selectively controls the on-off test of the corresponding 485 communication device through each second relay.

[0013] On the basis of the above technical solution, preferably, the 485 communication equipment includes a liquid cooling unit, a water immersion unit, a fire fighting unit, a dehumidifier unit and a temperature and humidity transmitter unit.

[0014] On the basis of the above technical scheme, preferably, the voltage-insulation test module includes an insulation voltage tester, three high-voltage relays, a battery box, a high-voltage box and a junction cabinet, wherein the input end of the insulation voltage tester is electrically connected to the output end of the control module, the input end of the insulation voltage tester is electrically connected to one end of the contacts of the three high-voltage relays, respectively, the other ends of the contacts of the three high-voltage relays are electrically connected to the input ends of the battery box, the high-voltage box and the junction cabinet, respectively, the coils of the three high-voltage relays are electrically connected to the output end of the control module, and the control module selectively controls the on-off test of the battery box, the high-voltage box and the junction cabinet through the high-voltage relays.

[0015] On the basis of the above technical solution, preferably, a multimeter test module is also included, which is electrically connected to the control module and is used to measure the resistance value of the CAN communication unit and the voltage between the main positive and negative of the busbar.

[0016] On the basis of the above technical scheme, preferably, the multimeter test module includes a multimeter unit, two third relays and a busbar unit, wherein the input end of the multimeter unit is electrically connected to the output end of the control module, the test end of the multimeter unit is electrically connected to one end of the contacts of the two third relays, respectively, the other ends of the contacts of the two third relays are electrically connected to the output ends of the busbar unit and the CAN communication unit, respectively, the coils of the two third relays are electrically connected to the output end of the control module, and the control module selectively controls the on-off test of the CAN communication unit and the busbar unit through the third relays.

[0017] On the basis of the above technical solution, preferably, a switch is further included, and the switch is respectively connected to the host computer and the control module for communication, and is used for data exchange between the multimeter unit and the insulation withstand voltage tester and the control module.

[0018] The energy storage container test integrated system of the utility model has the following beneficial effects compared with the prior art:

[0019] (1) The CAN communication device that needs to be tested in the energy storage container communicates with the control module through the CAN communication test module, and the 485 communication device that needs to be tested in the energy storage container communicates with the control module through the 485 communication test module, and the upper computer cooperates with the control module to test the CAN communication and 485 communication, and the upper computer sets the required withstand voltage value and test time parameters, and the withstand voltage insulation of the equipment in the energy storage container is tested through the withstand voltage insulation test module. In this system, various test items are integrated into one test system, which simplifies the test complexity, and the test stability is strong, thereby improving the test efficiency;

[0020] (2) By using the multimeter test module to measure the resistance value of the CAN communication unit and the voltage between the positive and negative busbars, the measurement accuracy of the BMS battery cluster management unit can be tested, thus improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a system block diagram of the energy storage container test integration system of the utility model;

[0023] Figure 2 This is a circuit schematic diagram of the energy storage container test integrated system of the utility model. DETAILED DESCRIPTION

[0024] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-2 As shown, an energy storage container test integrated system of the utility model includes a host computer 1, a control module 2, a CAN communication test module 3, a 485 communication test module 4 and a withstand voltage insulation test module 5, wherein the host computer 1 is electrically connected to the control module 2, and is used to write data to the control module 2 and receive a feedback signal from the control module 2; the CAN communication test module 3, the 485 communication test module 4 and the withstand voltage insulation test module 5 are all electrically connected to the control module 2; the CAN communication test module 3 is used to test the equipment using CAN communication in the energy storage container; the 485 communication test module 4 is used to test the equipment using 485 communication in the energy storage container; the withstand voltage insulation test module 5 is used to test the withstand voltage insulation test of the equipment in the energy storage container; the host computer 1 sends a signal to the corresponding equipment through the CAN communication test module 3, the 485 communication test module 4 and the withstand voltage insulation test module 5, and the equipment feeds back a signal to the host computer 1.

[0026] It should be noted that the CAN communication device to be tested in the energy storage container communicates with the control module 2 through the CAN communication test module 3. During the test, the host computer 1 sends a signal to the corresponding device or writes a message to the device under test, and the corresponding device feeds back a signal to the host computer 1. The host computer 1 receives the feedback signal and determines whether the CAN communication port is normal and the software version is correct according to whether the message is replied and the content of the reply message; the 485 communication device to be tested in the energy storage container communicates with the control module 2 through the 485 communication test module 4. During the test, the host computer 1 sends a signal to the corresponding device or writes a message to the device under test, and the corresponding device feeds back a signal to the host computer 1. The host computer 1 receives the feedback signal and determines whether the 485 communication port is normal and the software version is correct according to whether the message is replied and the content of the reply message; the required withstand voltage value and test time parameters are set by the host computer 1, and the withstand voltage insulation of the equipment in the energy storage container is tested by the withstand voltage insulation test module 5. In this system, various test items are integrated into one test system, which simplifies the test complexity and has strong test stability, thereby improving the test efficiency.

[0027] The control module 2 is of IPC-610 model, which is used for the installation, operation and control of the software of the host computer 1 of the test system, and communicates with the test instrument to enable the system to perform automated testing.

[0028] As a preferred implementation, the CAN communication test module 3 in this embodiment includes a CAN communication unit 31, multiple CAN communication devices 32 and multiple first relays 33, wherein the input end of the CAN communication unit 31 is electrically connected to the output end of the control module 2, the output end of the CAN communication unit 31 is electrically connected to one end of the contacts of the multiple first relays 33 respectively, the other end of the contact of the first relay 33 is electrically connected to the corresponding CAN communication device 32, the coil of the first relay 33 is electrically connected to the output end of the control module 2, and the control module 2 selectively controls the on-off test of the corresponding CAN communication device 32 through each first relay 33.

[0029] Specifically, the CAN communication device 32 in this embodiment includes a BMS battery cluster management unit, a BAM battery array management unit and a PCS energy storage converter unit.

[0030] It should be noted that the BMS battery cluster management unit, BAM battery array management unit and PCS energy storage inverter unit included in the CAN communication device 32 connected to all CAN communication ports that need to be tested in the container system are connected in parallel to the CAN communication unit 31, and a first relay 33 is connected in series in each branch. The control module 2 controls the on and off of multiple first relays 33 to disconnect other CAN communication ports. During testing, only one CAN communication port of a single channel is kept under test, and then the message of the device under test is read or written through the host computer 1, and the reply message and the content of the reply message are checked to determine whether the communication is normal and whether the software version is correct.

[0031] As a preferred implementation, the 485 communication test module 4 in this embodiment includes a 485 communication unit 41, multiple 485 communication devices 42 and multiple second relays 43, wherein the input end of the 485 communication unit 41 is electrically connected to the output end of the control module 2, the output end of the 485 communication unit 41 is electrically connected to one end of the contacts of the multiple second relays 43 respectively, the other end of the contact of the second relay 43 is electrically connected to the corresponding 485 communication unit 41, the coil of the second relay 43 is electrically connected to the output end of the control module 2, and the control module 2 selectively controls the on-off test of the corresponding 485 communication device 42 through each second relay 43.

[0032] Specifically, the 485 communication device 42 in this embodiment includes a liquid cooling unit, a water immersion unit, a fire fighting unit, a dehumidifier unit and a temperature and humidity transmitter unit.

[0033] It should be noted that the liquid cooling unit, water immersion unit, fire protection unit, dehumidifier unit and temperature and humidity transmitter unit adopt the 485 communication unit 41 and are connected in parallel to the 485 communication unit 41 through the second relay 43 control. The control module 2 controls the on and off of multiple second relays 43 to perform 485 communication tests on each device in turn, and then the host computer 1 reads or writes the message of the tested device, and determines whether the communication is normal and the software version is correct according to whether the message is replied and the content of the reply message.

[0034] As a preferred embodiment, the voltage insulation test module 5 in this embodiment includes an insulation voltage tester 51, three high-voltage relays 52, a battery box 53, a high-voltage box 54 and a junction box 55, wherein the input end of the insulation voltage tester 51 is electrically connected to the output end of the control module 2, the input end of the insulation voltage tester 51 is electrically connected to one end of the contacts of the three high-voltage relays 52, respectively, the other ends of the contacts of the three high-voltage relays 52 are electrically connected to the input ends of the battery box 53, the high-voltage box 54 and the junction box 55, respectively, the coils of the three high-voltage relays 52 are all electrically connected to the output end of the control module 2, and the control module 2 selectively controls the on-off test of the battery box 53, the high-voltage box 54 and the junction box 55 through each high-voltage relay 52.

[0035] It should be noted that an insulation and voltage withstand tester 51 is configured in the test system to complete the grounding resistance, insulation and voltage withstand tests of some equipment in the container system. Specifically, the required voltage withstand value and test time parameters are set on the host computer 1, and the positive and negative poles of the insulation and voltage withstand tester 51 are connected to the positive and negative of the battery box 53, the high-voltage box 54 and the junction box 55 and the ground through the high-voltage relay 52 with a high-voltage line. By closing the high-voltage relay 52, the grounding resistance, insulation value and voltage withstand tests between the positive and negative of the battery box 53, the high-voltage box 54 and the junction box 55 are completed in turn.

[0036] The present embodiment further includes a multimeter test module 6 , which is electrically connected to the control module 2 and is used to measure the resistance value of the CAN communication unit 31 and the voltage between the positive and negative main terminals of the busbar.

[0037] As a preferred implementation, the multimeter test module 6 in this embodiment includes a multimeter unit 61, two third relays 62 and a busbar unit 63, wherein the input end of the multimeter unit 61 is electrically connected to the output end of the control module 2, the test end of the multimeter unit 61 is electrically connected to one end of the contacts of the two third relays 62, respectively, the other ends of the contacts of the two third relays 62 are electrically connected to the output ends of the busbar unit 63 and the CAN communication unit 31, respectively, the coils of the two third relays 62 are electrically connected to the output end of the control module 2, and the control module 2 selectively controls the on-off test of the CAN communication unit 31 and the busbar unit 63 through each third relay 62.

[0038] It should be noted that a multimeter unit 61 is configured in the test system to complete the resistance value measurement of the CAN communication unit 31 and the voltage between the positive and negative main busbars, and to verify the measurement accuracy of the BMS battery cluster management unit. Specifically, the test leads of the multimeter unit 61 are connected to the output H and L terminals of the CAN communication unit 31 and the positive and negative busbars through the third relay 62 and the control module 2, respectively. The host computer 1 sets the multimeter unit 61 to measure the resistance and voltage mode, and closes the third relay 62 in sequence to measure the resistance value of the CAN communication unit 31 and the total busbar pressure.

[0039] The present embodiment further includes a switch 7 , which is respectively connected to the host computer 1 and the control module 2 for communication, and is used for data exchange between the multimeter unit 61 , the insulation withstand voltage tester 51 and the control module 2 .

[0040] Among them, the present embodiment also includes a power supply module, which is electrically connected to the control module 2, the CAN communication test module 3, the 485 communication test module 4, the withstand voltage insulation test module 5, the multimeter test module 6, the switch 7, the first relay 33, the second relay 43, the high-voltage relay 52 and the third relay 62, and is used to supply power to the control module 2, the CAN communication test module 3, the 485 communication test module 4, the withstand voltage insulation test module 5, the multimeter test module 6, the switch 7, the first relay 33, the second relay 43, the high-voltage relay 52 and the third relay 62.

[0041] Working principle:

[0042] All CAN communication devices 32 to be tested in the container system are connected to the CAN communication unit 31, and a first relay 33 is connected in series in each branch of the CAN communication device 32. During the test, the control module 2 controls the on and off of multiple first relays 33 in sequence, and only one CAN communication port is kept in the test. Then, the host computer 1 reads or writes the message of the device under test, and checks whether the message is replied and the content of the reply message to determine whether the communication is normal and whether the software version is correct;

[0043] All 485 communication devices 42 to be tested in the container system are connected to the 485 communication unit 41, and a second relay 43 is connected in series in each branch of the 485 communication device 42. During the test, the control module 2 controls the on and off of multiple second relays 43 in sequence, and only one 485 communication port is kept in the test. Then, the upper computer 1 reads or writes the message of the device under test, and checks whether the message is replied and the content of the reply message to determine whether the communication is normal and whether the software version is correct;

[0044] The required withstand voltage value and test time parameters are set on the host computer 1, and the positive and negative poles of the insulation withstand voltage tester 51 are connected to the positive and negative poles of the battery box 53, the high-voltage box 54 and the junction box 55 and the ground respectively through the high-voltage relay 52 with a high-voltage withstand line, and the ground resistance, insulation value and withstand voltage test between the positive and negative poles of the battery box 53, the high-voltage box 54 and the junction box 55 are completed in sequence by closing the high-voltage relay 52;

[0045] The test leads of the multimeter unit 61 are respectively connected to the output H and L terminals of the CAN communication unit 31 and the positive and negative terminals of the busbar through the third relay 62 and the control module 2. The host computer 1 sets the multimeter unit 61 to measure the resistance and voltage mode, and closes the third relay 62 in sequence to measure the resistance value and the total busbar pressure of the CAN communication unit 31.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy storage container test integrated system, characterized in that: It comprises a host computer (1), a control module (2), a CAN communication test module (3), a 485 communication test module (4) and a withstand voltage insulation test module (5), wherein: The host computer (1) is electrically connected to the control module (2) and is used to write data to the control module (2) and receive feedback signals from the control module (2); The CAN communication test module (3), the 485 communication test module (4) and the withstand voltage insulation test module (5) are all electrically connected to the control module (2); the CAN communication test module (3) is used to test the equipment using CAN communication in the energy storage container; the 485 communication test module (4) is used to test the equipment using 485 communication in the energy storage container; the withstand voltage insulation test module (5) is used to test the withstand voltage insulation test of the equipment in the energy storage container; The host computer (1) sends a signal to a corresponding device through the CAN communication test module (3), the 485 communication test module (4) and the withstand voltage insulation test module (5), and the device feeds back a signal to the host computer (1).

2. The energy storage container test integrated system according to claim 1, characterized in that: The CAN communication test module (3) comprises a CAN communication unit (31), a plurality of CAN communication devices (32) and a plurality of first relays (33), wherein the input end of the CAN communication unit (31) is electrically connected to the output end of the control module (2), the output end of the CAN communication unit (31) is electrically connected to one end of the contacts of the plurality of first relays (33), the other end of the contact of the first relay (33) is electrically connected to the corresponding CAN communication device (32), the coil of the first relay (33) is electrically connected to the output end of the control module (2), and the control module (2) selectively controls the on-off test of the corresponding CAN communication device (32) through each of the first relays (33).

3. The energy storage container test integrated system according to claim 2, characterized in that: The CAN communication device (32) comprises a BMS battery cluster management unit, a BAM battery array management unit and a PCS energy storage converter unit.

4. The energy storage container test integrated system according to claim 1, characterized in that: The 485 communication test module (4) comprises a 485 communication unit (41), a plurality of 485 communication devices (42) and a plurality of second relays (43), wherein the input end of the 485 communication unit (41) is electrically connected to the output end of the control module (2), the output end of the 485 communication unit (41) is electrically connected to one end of the contacts of the plurality of second relays (43), the other end of the contact of the second relay (43) is electrically connected to the corresponding 485 communication unit (41), the coil of the second relay (43) is electrically connected to the output end of the control module (2), and the control module (2) selectively controls the on / off test of the corresponding 485 communication device (42) through each second relay (43).

5. The energy storage container test integrated system according to claim 4, characterized in that: The 485 communication equipment (42) includes a liquid cooling unit, a water immersion unit, a fire fighting unit, a dehumidifier unit and a temperature and humidity unit.

6. The energy storage container test integrated system according to claim 2, characterized in that: The withstand voltage insulation test module (5) comprises an insulation withstand voltage tester (51), three high-voltage relays (52), a battery box (53), a high-voltage box (54) and a junction box (55), wherein the input end of the insulation withstand voltage tester (51) is electrically connected to the output end of the control module (2), the input end of the insulation withstand voltage tester (51) is electrically connected to one end of the contact of the three high-voltage relays (52), the other ends of the contact of the three high-voltage relays (52) are electrically connected to the input ends of the battery box (53), the high-voltage box (54) and the junction box (55), the coils of the three high-voltage relays (52) are electrically connected to the output end of the control module (2), and the control module (2) selectively controls the on-off test of the battery box (53), the high-voltage box (54) and the junction box (55) through the high-voltage relays (52).

7. The energy storage container test integrated system according to claim 6, characterized in that: It also includes a multimeter test module (6), which is electrically connected to the control module (2) and is used to measure the resistance value of the CAN communication unit (31) and the voltage between the main positive and negative terminals of the busbar.

8. The energy storage container test integrated system according to claim 7, characterized in that: The multimeter test module (6) comprises a multimeter unit (61), two third relays (62) and a busbar unit (63), wherein the input end of the multimeter unit (61) is electrically connected to the output end of the control module (2), the test end of the multimeter unit (61) is electrically connected to one end of the contact of the two third relays (62), the other ends of the contact of the two third relays (62) are electrically connected to the output ends of the busbar unit (63) and the CAN communication unit (31), respectively, the coils of the two third relays (62) are electrically connected to the output end of the control module (2), and the control module (2) selectively controls the on / off test of the CAN communication unit (31) and the busbar unit (63) through the third relays (62).

9. The energy storage container test integrated system according to claim 8, characterized in that: It also includes a switch (7), which is respectively connected to the host computer (1) and the control module (2) for communication, and is used for data exchange between the multimeter unit (61) and the insulation withstand voltage tester (51) and the control module (2).

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