Flow battery power unit test tool

Abstract

The utility model belongs to the technical field of flow batteries, and discloses a flow battery power unit test tool, which comprises a composite main control board, a man-machine interface, an electric appliance element and a box body, the composite main control board and the electric appliance element are arranged in the box body and are electrically connected, the composite main control board is electrically connected with the man-machine interface, and the composite main control board is composed of a main control board, an analog signal board and an analog signal board. And the digital signal board is formed by compounding three layers of boards. According to the utility model, analog quantity signals or dynamic electricity are sent to the physical acquisition end of the primary instrument of the power unit, and acquired data and operation conditions of various functions are directly observed through a man-machine interaction interface or electrical components such as a fan, a lighting device, a heater, a liquid mixing valve and the like, so that the quality and integration effect of the electrical components of the power unit can be intuitively judged; and judging the overall electrical quality of the flow battery power unit. By applying the tool, the test accuracy and comprehensiveness can be greatly improved, the situation that faults are not tested is reduced, and project field fault repair work is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of liquid flow battery, is applicable to the power unit test and debugging of liquid flow battery, and specifically relates to a liquid flow battery power unit test tool. BACKGROUND

[0002] As a new type of energy storage technology, liquid flow battery has received extensive attention and research due to its excellent cycle performance and scalability. Unlike traditional lithium batteries, liquid flow battery stores and releases energy through the flow of electrolyte in the reaction tower. This feature makes liquid flow battery have significant advantages in large-scale grid storage and renewable energy utilization. However, to fully realize the potential of liquid flow battery, accurate testing of its performance is essential.

[0003] In the research and testing process of liquid flow battery, power unit test tool plays a crucial role. It not only serves as a bridge between laboratory research and practical application, but also is the key to ensuring the stable and efficient operation of liquid flow battery under various working conditions. Traditional test tools often have problems such as complex operation, insufficient testing accuracy, poor adaptability, etc., which cannot meet the needs of the rapid development of liquid flow battery technology.

[0004] The original testing method is to check the wiring by using the on-off position of the multimeter. It cannot detect the functions of each item. Due to the inability to test, the performance of the core components of the liquid flow battery power unit, such as the voltage plate, and the various electrical components in the box, such as the heater, fan, lighting, and mixing valve, as well as the key instruments, such as the pressure sensor, threshold position, OCV, RCV, etc. cannot be tested. The wiring checking work is also limited by the placement of the container, and long wires need to be stretched to test the continuity of the circuit. This testing method requires multiple people to complete the work, which is not convenient and takes a long time to test. At the same time, it cannot guarantee the accuracy of the liquid flow battery power unit testing work.

[0005] Therefore, it is particularly important to develop a new type of liquid flow battery power unit test tool. This tool needs to overcome the limitations of traditional tools, provide higher testing accuracy, more convenient operation, stronger adaptability and scalability, to meet the needs of the continuous development of liquid flow battery technology. SUMMARY

[0006] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0007] The liquid flow battery power unit test tool comprises a composite main control board, a human-machine interface, electrical components, and a box. The composite main control board and the electrical components are electrically connected inside the box. The composite main control board and the human-machine interface are electrically connected. The composite main control board is composed of a main control board, an analog signal board, and a digital signal board.

[0008] Further, the main control board and external voltage are communicated through a controller area network unit, and the main control board is electrically connected with a man-machine interface through a network transmission unit.

[0009] Further, the DI point reserved by the composite main control board is designed as a collection point of feedback functions such as voltage board fault of the power unit, threshold position, circuit breaker.

[0010] Further, the collection point is designed as a lantern head switching interface mode and is quickly plugged into the jack to be tested.

[0011] Further, the man-machine interface is designed as a touch screen.

[0012] Further, the man-machine interface adopts MCGS programming technology and designs detailed test pictures covering all electrical functions of the flow battery power unit.

[0013] Further, the electrical element is used for analog quantity collection of the stack voltage, OCV, RCV, current transformer and the like.

[0014] The utility model has the beneficial effects compared with the prior art:

[0015] The flow battery power unit power-on test sends analog quantity signals or power to the physical collection end of the power unit, directly observes the collected data and the operation of various functions through the man-machine interface (touch screen) or the electrical components such as fans, lighting, heaters and mixed liquid valves, and can intuitively judge the quality and integration effect of the power unit electrical device to judge the overall electrical quality of the flow battery power unit. Compared with the previous test method, the test items are more comprehensive, and the test method is more scientific. At the same time, the touch screen (man-machine interface) designs to automatically record and store test data, automatically records test items, and when all test items are completed, a test completion flag is prompted, which facilitates the more convenient operation of the tester. At the same time of design, the safety awareness is increased, and a buzzing warning is given when 220V alternating current is distributed to prevent electric shock.

[0016] After using the tool, the test items and methods are more scientific, and the previous pull line calibration test method is simplified, and the single box test efficiency is improved. The original test of one flow battery power unit needs 3 people, 4 hours, a total of 12 hours of working hours, and now the tool test of a single power unit needs 3 people, 1.5 hours, a total of 4.5 hours, and the single unit saves nearly 500 yuan of working hours.

[0017] Under the original test mode, the faults not detected by the power unit need to be solved in the project site, but limited by the actual working conditions in the site, the fault repair work is more difficult, and the time cost and material cost consumed by the on-site rectification are great. The application of the tool can greatly improve the test accuracy and comprehensiveness, reduce the occurrence of undetected faults, and reduce the project site fault repair work. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further illustrated below in combination with the drawings and embodiments.

[0019] Figure 1 is a test tool section view;

[0020] Figure 2 is a front view of the test tool;

[0021] Figure 3 is a composite main control board and electronic unit architecture design drawing;

[0022] Figure 4 is a tool internal electrical wiring diagram;

[0023] Figure 5 is a composite main control board and human-machine interface power distribution diagram.

[0024] In the drawing: 1. composite main control board, 2. human-machine interface, 3. electrical components, 4. box, 5. main control board, 6. analog signal board, 7. digital signal board, 8. controller area network unit, 9. external voltage, 10. network transmission unit. DETAILED DESCRIPTION

[0025] The utility model is described in detail below through specific embodiments, but does not limit the protection scope of the utility model. Unless otherwise specified, the experimental methods used in the utility model are conventional methods, and the experimental apparatus, materials, reagents, etc. used can be obtained from commercial channels.

[0026] Example 1

[0027] The weak current and analog signal of the liquid flow battery power unit is collected to the voltage board (PCB board), and communicated outward through CAN. At the same time, the power unit is equipped with some heaters, fans, lighting and other electrical equipment, and reserved construction cables, which are used for project site battery assembly and cable connection.

[0028] The tool mainly includes: composite main control board 1, human-machine interface 2, electrical components 3, box 4, etc.

[0029] The tool core component is a composite main control board 1, which can receive CAN messages and then convert them into modbus TCP communication mode. The DI point reserved on the tool composite main control board 1 is designed as a collection point for feedback functions of power unit voltage board faults, threshold positions, circuit breakers, etc. Different digital and analog collection functions are switched, and are designed as a lantern head switching interface mode, which is quickly plugged into the required test jack.

[0030] The architecture of the composite main control board 1 is composed of three layers of boards, i.e., a main control board 5, an analog signal board 6, and a digital signal board 7. The main control board 5 communicates with an external voltage 9 with a detection power unit through a controller area network unit 8. Through this architecture design, the signals of the power unit can be quickly collected.

[0031] The man-machine interface 2 adopts MCGS programming technology and designs detailed test pictures covering all electrical functions of the flow battery power unit.

[0032] The electrical element 3 is used for analog collection of stack voltage, OCV, RCV, current transformer, etc. It uses CAN communication to the tool and cooperates with a signal generator to give a standard signal to observe the data collected by the tool, so as to evaluate the performance and quality of the flow battery power unit.

[0033] This tool can simultaneously adapt to various series of power unit tests of the flow battery. The tool also reserves 220V and DC 24V power distribution functions, which can power the flow battery power unit and test whether each electrical function of the power unit is working normally.

[0034] In the test picture and software programming, an intelligent recording function is designed. When the test work is carried out, the software automatically records the completed test steps and the uncompleted test steps, so as to avoid the omission of untested items. At the same time, the collected data and the nominal value are automatically compared to distinguish whether the error is passed or not by color, and then the analog collection accuracy of the flow battery power unit is automatically evaluated.

[0035] Embodiment 2

[0036] After the flow power unit is tested by using the tool, 165 fault conditions are found in the test of 135 power units in a certain project, which covers power unit voltage board channel faults, sensor failures of pressure sensors, hydrogen alarms, temperature sensors, etc., and execution mechanism faults of heaters, lighting lamps, and liquid mixing valves. The above fault conditions cannot be found by the previous test method, and the application of the utility model avoids the project site rectification work. The test working hours are reduced by 60% compared with the previous test method, about 1560 working hours are saved, and the labor cost is reduced by more than 50000 yuan.

[0037] The above-described embodiments are only preferred embodiments of the present application, and are not all the embodiments that can be implemented by the present application. Any obvious modifications made by those skilled in the art without departing from the principles and spirit of the present application should be considered to be included in the protection scope of the claims of the present application.

Claims

1. A flow battery power cell test fixture, characterized by, It comprises a composite main control board (1), a man-machine interface (2), an electrical component (3) and a box (4), the box (4) is internally provided with the composite main control board (1) and the electrical component (3), both of which are electrically connected, the composite main control board (1) and the man-machine interface (2) are electrically connected, and the composite main control board (1) is composed of a main control board (5), an analog signal board (6) and a digital signal board (7).

2. The flow battery power unit test fixture of claim 1, wherein, The main control board (5) is in serial communication with an external voltage (9) through a controller area network unit (8), and the main control board (5) is electrically connected with the man-machine interface (2) through a network transmission unit (10).

3. The flow battery power unit test fixture of claim 1, wherein, DI point positions reserved by the composite main control board (1) are designed as acquisition points of feedback functions such as voltage board faults, threshold positions and circuit breakers of the power unit.

4. The flow battery power unit test fixture of claim 3, wherein, The acquisition points are designed as lantern head switching interface modes and are quickly plugged into the jack to be tested.

5. The flow battery power unit test fixture of claim 1, wherein, The man-machine interface (2) is designed as a touch screen.

6. The flow battery power unit test fixture of claim 1, wherein, The man-machine interface (2) adopts MCGS programming technology and designs detailed test pictures, which cover all electrical functions of the power unit of the liquid flow battery.

7. The flow battery power unit test fixture of claim 1, wherein, The electrical component (3) is used for acquiring analog quantities such as stack voltage, OCV, RCV and current transformer.

Images