CN221977010U - A hardware debugging device suitable for wind power converter - Google Patents

Abstract

The utility model discloses a hardware debugging device suitable for a wind power converter, which belongs to the technical field of testing and comprises a cabinet body, a debugging jig and a control assembly, wherein the debugging jig is arranged in the cabinet body and comprises a jig box which can be detached integrally, a signal adapter plate is arranged in the jig box, a signal jumper terminal is connected with the signal adapter plate through an aviation plug, a signal acquisition plate is arranged at the top of a box cover of the jig box and is connected with the signal acquisition plate, the signal acquisition plate is connected with a hardware plate to be tested through a metal measuring pin, and a pressing device for fixing the hardware plate to be tested is arranged above the hardware plate to be tested. The debugging device can replace different types of debugging jigs according to the power grades of different converters to realize compatibility of the hardware control systems of the converters with different power grades, and has the advantages of convenience in replacement, high debugging efficiency and the like.

Description

A hardware debugging device suitable for wind power converter

Technical Field

The utility model relates to a hardware debugging device, in particular to a hardware debugging device suitable for a wind power converter.

Background Art

After the hardware production of the wind power converter control system is completed, the functions of each communication port and IO signal port of the hardware control board can be effectively verified through hardware debugging, so as to be used for subsequent simulation testing or on-site on-hook testing. Although there are some test cabinet devices for hardware debugging in the prior art, there are still problems such as inconvenient testing and low testing efficiency. For example, in the prior art, the utility model patent with announcement number CN218471179U discloses "A hardware-in-the-loop simulation test cabinet for wind power converter controller". This patent uses a main control communication simulation system to test the CAN communication of the converter controller, uses a photoelectric conversion module to transfer the converter optical fiber communication, transfers the IO/voltage signal through a jumper, and then connects to the external simulation device through an interface conversion plug. However, this solution still has the following shortcomings: First, since this solution only has a tooling for signal transfer, it still needs to be wired according to the actual test requirements when used for actual testing; and this solution still uses male and female terminals to realize the signal interaction between the control board of the tested converter and the components in the cabinet. After changing the type of the tested board, wiring and other work are still required, which greatly affects the test efficiency; secondly, this solution uses the main control communication simulation system to test the CAN communication of the control board of the tested converter. For different models, different ports and test programs need to be configured; and the test cabinet in this solution can only realize the test of communication and IO signals, but is not compatible with special signals such as high voltage sampling channels and PWM signals. Therefore, it is urgent to propose a hardware debugging device suitable for wind power converters.

Utility Model Content

The utility model aims to solve the above problems existing in the wind power converter debugging device in the prior art, and proposes a hardware debugging device suitable for the wind power converter, which has the advantages of convenient replacement, high debugging efficiency, etc.

In order to achieve the above utility model purpose, the technical solution of the utility model is as follows:

A hardware debugging device suitable for a wind power converter, characterized in that it includes a cabinet, a debugging fixture arranged in the cabinet, and a control component, the debugging fixture includes a fixture box that can be disassembled as a whole, a signal adapter board is arranged in the fixture box, a signal jumper terminal is connected to the signal adapter board through an aviation plug, a signal acquisition board is arranged on the top of the fixture box cover, the signal adapter board is connected to the signal acquisition board, and the signal acquisition board is connected to the hardware board under test through a metal measuring needle, and a clamping device for fixing the hardware board under test is arranged above the hardware board under test.

Furthermore, the cabinet includes an upper cabinet and a lower cabinet, the debugging fixture is placed in the upper cabinet, and the signal jumper terminals, high-voltage power supply and control components are arranged in the lower cabinet.

Furthermore, the control component includes a B&R X20 series PLC module bus, a power switch, an indicator light control relay, a switch, and a 48V/24V/12V switching power supply; the PLC signal and the high-voltage power supply output signal are both connected to the signal jumper terminal.

Furthermore, the 48V/24V/12V switching power supply distributes power through three low-voltage switches respectively. The 48V power supply is used to power the stepper motor in the clamping device, the 24V power supply respectively powers the switch, PLC module bus, indicator light control relay and the hardware board under test, and the 12V power supply is used to power the hardware board under test.

Furthermore, the high-voltage power supply is equipped with a communication interface, which is used to provide real-time feedback of the output status and to cut off the output of the high-voltage power supply when the actual output is higher than an output threshold.

Furthermore, a control button is provided on the cabinet, and the control button is connected to the control component to cut off the power supply and high-voltage power output of the test bench in an emergency.

Furthermore, a display is provided on the cabinet, and the display is electrically connected to the control component, and is used to call the PLC built-in test program through the debugging page to implement all test functions, and display information including test status, test progress, test program selection, test results, and start/end test.

Furthermore, an operation indicator light is provided on the cabinet, and the operation indicator light is used to display the operation status of the debugging system in real time.

Furthermore, a lockable Foma wheel is provided at the bottom of the cabinet.

Furthermore, a door panel slide rail is provided at the connection between the box cover and the box body of the fixture box, a probe correction plate is provided above the signal acquisition board, and the signal acquisition board and the probe correction plate are connected by a fixed copper column.

This solution has the following advantages:

1. The utility model adopts a debugging fixture connected by a probe. When replacing the control board under test, it is only necessary to replace the debugging fixture box and connect the aviation plug to the fixture box, which greatly shortens the wiring time when replacing the board under test. The aviation plug connection can also prevent debugging errors caused by miswiring by the debugging personnel, and has the advantages of convenient replacement and high debugging efficiency.

2. The debugging device of the utility model adopts the CAN&CANopen communication test module of B&R X20 series PLC. For different control systems under test, CAN&CANopen communication can be verified without changing the test program and hardware configuration; at the same time, the 485 communication, PWM pulse width, encoder signal test module and 1200VDC/5A/2000W high-voltage DC power supply of B&R X20 series PLC are selected, which can be compatible with the test requirements of 485 communication, encoder signal and the highest ±1200VDC DC high-voltage signal;

3. In the debugging device of the utility model, the 1200V high-voltage DC power supply can set an output threshold. When the actual output is higher than the output threshold, the output of the high-voltage power supply will be automatically cut off to ensure personal safety.

4. The debugging device of the utility model is provided with a display and an operation indicator light, which can present the operating status of the system in real time. The display can also display the test status, test progress, test program selection, test results and other information through the debugging page. The debugging process is carried out through the function buttons integrated in the page. The operation is simple and all tests can be completed in 3-5 minutes.

5. The debugging device of the utility model is equipped with an emergency stop button, which can urgently cut off the power supply of the 1200V high-voltage power supply of the test bench to ensure personal safety.

6. The debugging device of the utility model is equipped with four lockable Foma wheels, which facilitates the movement of the test bench in the factory;

7. In the present invention, a door panel slide rail is provided at the connection between the box cover and the box body of the fixture box, so that the signal adapter board and wiring inside the fixture box can be easily replaced.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a system topology diagram of the debugging device of the utility model;

FIG2 is a front view of a debugging device cabinet of the utility model;

FIG3 is a schematic structural diagram of a clamping device;

FIG4 is a schematic diagram of the structure of the fixture box;

FIG5 is a schematic diagram of a signal acquisition board for fixing the control system under test;

In the figure:

1. Observation window, 2. Operation indicator light, 3. Display, 4. Control button, 5. Temporary placement table, 6. Fomar wheel, 7. Support frame, 8. Stepper motor, 9. Fixture box, 10. Signal transfer board, 11. Hardware board under test, 12. Aviation plug installation hole, 13. Fixed copper column, 14. Door panel slide rail, 15. Probe correction plate, 16. Signal acquisition board, 17. Probe.

DETAILED DESCRIPTION

In order to more clearly illustrate the utility model, the utility model is further described below in conjunction with preferred embodiments and drawings. Those skilled in the art should understand that the content described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the utility model.

Example 1

The utility model provides a hardware debugging device suitable for a wind power converter, comprising a cabinet, a debugging fixture arranged in the cabinet, and a control component, wherein the debugging fixture comprises a fixture box 9 which can be disassembled as a whole, a signal adapter board 10 is arranged in the fixture box 9, a signal jumper terminal is connected to the signal adapter board 10 through an aviation plug, a signal acquisition board 16 is arranged on the top of a cover of the fixture box 9, the signal adapter board 10 is connected to the signal acquisition board 16, and the signal acquisition board 16 is connected to a hardware board 11 to be tested through a metal measuring needle 17, and a clamping device for fixing the hardware board 11 to be tested is arranged above the hardware board 11 to be tested.

Furthermore, as shown in FIG. 4 , a door panel slide rail 14 is provided at the connection between the box cover and the box body of the fixture box 9 to facilitate replacement of the signal adapter board 10 and wiring inside the fixture box 9 .

The back of the signal acquisition board 16 is connected to the signal adapter board 10 inside the fixture box 9 through a 30P cable. As shown in Figure 5, the probe 17 is fixed on the signal acquisition board 16. A probe correction plate 15 is provided above the signal acquisition board 16. The signal acquisition board 16 and the probe correction plate 15 are connected by a fixed copper column 13.

Preferably, in this embodiment, the mounting hole of the aviation plug is arranged on the back of the fixture box 9, and the signal adapter board 10 is arranged at the bottom of the fixture box 9 and placed in the center. When wiring the debugging device, it is only necessary to plug in according to the instructions of the aviation plug, so as to prevent the tester from misoperating during wiring and improve the test efficiency. Since the jig box can be disassembled as a whole, when replacing the control board of the inverter under test, it is only necessary to replace the corresponding debugging jig and connect the aviation plug to the jig box 9, which shortens the time for converting the wiring when replacing the control board under test, thereby meeting the fast switching requirements when testing multiple control systems. The utility model is mainly used for automatic debugging of hardware control systems of multi-power level inverters, and can also be used in other hardware tests.

Example 2

Based on the hardware debugging device suitable for wind power converter proposed in Example 1, further, in this embodiment, the cabinet also includes an upper cabinet and a lower cabinet, wherein the debugging fixture is placed in the upper cabinet, and the signal jumper terminals, high-voltage power supply and control components are all arranged in the lower cabinet. In addition, the cabinet adopts a back wiring method to facilitate the wiring work after replacing the tested board.

In this embodiment, the high-voltage power supply adopts a 1200V/5A/2000W power supply, which can output a maximum DC voltage of 1200V and is equipped with a communication interface to provide real-time feedback on the output status. The high-voltage power supply can set an output threshold. When the actual output is higher than the output threshold, the high-voltage power supply output can be cut off through communication to ensure personal safety.

Preferably, the control component includes a B&R X20 series PLC module bus, a power switch, an indicator light control relay, a switch, and a 48V/24V/12V switching power supply. The system topology is shown in Figure 1. The PLC module bus signal and the high-voltage power supply output signal are connected to the signal jumper terminal, and the interaction with all test results on the upper display page is realized through the CPU module network port. All test programs are downloaded online or offline to the memory card of the CPU module. During the test, the corresponding test program can be selected on the upper page as needed to improve the test efficiency.

In this embodiment, the debugging device adopts a test program development solution based on the B&R X20 series PLC module, and selects the X20CP3585 CPU module. The optional module can be compatible with 2-way CAN communication, 2-way 485 communication, IO, PWM door width test and stepper motor 8 drive functions.

The debugging device uses the AC 220V incoming line as the main power supply to power the entire device, and the 220V to 48V/24/12V switching power supply is used to power the converter hardware control system, PLC module and control circuit, and then the PLC built-in test program is called from the debugging page of the display 3 to realize all test functions. Among them, the 48V/24V/12V switching power supply is distributed through three low-voltage switches respectively, the 48V power supply is used to power the stepper motor 8 in the clamping device, the 24V power supply is used to power the switch, PLC module bus, indicator light control relay and the control system under test, and the 12V power supply is used to power the control system under test.

In this embodiment, in order to adapt to more test requirements and save installation space, two module buses are set in the lower cabinet through the mounting plate and two guide rails. One of the guide rails is equipped with B&R X20 series PLC module bus 1, power switch, indicator light control relay and switch from left to right; the other guide rail is equipped with B&R X20 series PLC module bus 2, high-voltage power supply output relay and 48V/24V/12V switching power supply from left to right.

Example 3

Based on the hardware debugging device for wind power converter proposed in Example 1, further, as shown in Figure 2, in this embodiment, the cabinet is also provided with a cabinet door, an observation window 1, an operation indicator light 2, a display 3, a control button 4, a temporary placement table 5 and a lockable Foma wheel 6. The observation window 1 is used to monitor the state of the tested board in real time during the test process; the operation indicator light 2 is used to display the operating state of the system in real time; the display 3 is connected to the control component and is used to display the test state, test progress, test program selection, test results, start/end test button and other information through the debugging page; the control button 4 is an emergency stop button, which is used to cut off the power supply of the test bench and the high-voltage power output to ensure personal safety; the temporary placement table 5 is used to temporarily place an external laptop or tool; four lockable Foma wheels 6 are installed at the bottom of the cabinet to facilitate the movement of the test bench in the factory.

Example 4

Based on the hardware debugging device for wind power converter proposed in Example 1, the clamping device is further defined. As shown in Figure 3, in this embodiment, the clamping device includes a support structure and a stepper motor 8 installed on the support structure. The stepper motor 8 is driven by a B&R stepper drive module to ensure the connection between the tested board and the metal probe, and the B&R stepper drive module selected for this device can also be compatible with the test requirements of the encoder signal.

The debugging process of this utility model is as follows:

Step 1: Test preparation: Select the debugging fixture for the hardware control board of the converter under test and assemble it.

In this step, after ensuring that the entire test bench is powered off, select the corresponding debugging fixture and install it in the cabinet, and select the aviation plug that matches the hardware control board of the converter under test and plug it into the assembled fixture.

Step 2: Power on experiment.

Close Q1, the power-on indicator lights up, then close Q2-Q5 in sequence, and the entire system is powered on in sequence;

Turn on display 3 and open the debugging page;

Select the corresponding test program on the debugging page homepage, click the "Start" button, the running indicator light 2 is powered, and the stepper motor 8 starts to press the hardware control board under test. If the system modbus communication is normal, the test is performed after the pressing is completed;

In case of emergency, when the red indicator light and buzzer are energized, press the emergency stop button SB1, which will disconnect the circuit breaker Q1 and cut off the output of the high-voltage power supply U1 to ensure personal safety.

Step 3: Wait for 3-5 minutes until the test is completed, check the test results, and choose whether to save the test results according to the system prompts. The test is complete.

The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A hardware debugging device suitable for a wind power converter, characterized in that it comprises a cabinet, a debugging fixture arranged in the cabinet, and a control component, wherein the debugging fixture comprises a fixture box (9) that can be disassembled as a whole, a signal adapter board (10) is arranged in the fixture box (9), a signal jumper terminal is connected to the signal adapter board (10) through an aviation plug, a signal acquisition board (16) is arranged on the top of the fixture box (9) cover, the signal adapter board (10) is connected to the signal acquisition board (16), and the signal acquisition board (16) is connected to the hardware board (11) under test through a metal probe (17), and a clamping device for fixing the hardware board (11) under test is arranged above the hardware board (11). 2. A hardware debugging device suitable for a wind power converter according to claim 1, characterized in that the cabinet comprises an upper cabinet and a lower cabinet, the debugging fixture is placed in the upper cabinet, and the signal jumper terminal, high-voltage power supply and control components are arranged in the lower cabinet. 3. A hardware debugging device suitable for a wind power converter according to claim 1 or 2, characterized in that the control component includes a B&R X20 series PLC module bus, a power switch, an indicator light control relay, a switch, a 48V/24V/12V switching power supply; the PLC signal and the high-voltage power supply output signal are both connected to the signal jumper terminal. 4. A hardware debugging device suitable for a wind power converter according to claim 3, characterized in that the 48V/24V/12V switching power supply is distributed through three low-voltage switches respectively, the 48V power supply is used to power the stepper motor (8) in the clamping device, the 24V power supply is used to power the switch, the PLC module bus, the indicator light control relay and the hardware board (11) under test respectively, and the 12V power supply is used to power the hardware board (11) under test. 5. A hardware debugging device suitable for a wind power converter according to claim 2, characterized in that the high-voltage power supply is equipped with a communication interface, and the communication interface is used to feedback the output status in real time and cut off the high-voltage power supply output when the actual output is higher than the output threshold. 6. A hardware debugging device suitable for a wind power converter according to claim 1, characterized in that a control button (4) is provided on the cabinet, and the control button (4) is connected to a control component for cutting off the power supply of the test bench and the high-voltage power output in an emergency. 7. A hardware debugging device suitable for a wind power converter according to claim 1, characterized in that a display (3) is arranged on the cabinet, and the display (3) is electrically connected to the control component, and is used to call the PLC built-in test program through the debugging page to implement all test functions, and display information including test status, test progress, test program selection, test results, and start/end test. 8. A hardware debugging device suitable for a wind power converter according to claim 1, characterized in that an operation indicator light (2) is provided on the cabinet, and the operation indicator light (2) is used to display the operation status of the debugging system in real time. 9. A hardware debugging device suitable for a wind power converter according to claim 1, characterized in that a lockable Forma wheel (6) is provided at the bottom of the cabinet. 10. A hardware debugging device suitable for a wind power converter according to claim 1, characterized in that a door panel slide rail (14) is provided at the connection between the box cover and the box body of the fixture box (9); a probe correction plate (15) is provided above the signal acquisition board (16), and the signal acquisition board (16) and the probe correction plate (15) are connected by a fixed copper column (13).