CN204215003U - A kind of railway DC600 power-supply system drive plate test bed - Google Patents

Abstract

The utility model provides a test bench for a drive board of a railway DC600 power supply system, which includes a signal conversion unit, an operation unit and a control unit; wherein: the signal conversion unit is connected with the drive board of the power supply system through an interface; the operation unit It is respectively connected with the signal conversion unit and the control unit, and the control unit is connected with the signal conversion unit; it also includes a display unit, and the display unit is connected with the driving board. The test bench of the utility model replaces the traditional method of installing the repaired drive board into the corresponding manufacturer's power supply for power test, and greatly reduces the cost of the board test by simulating the working process of the static mode and dynamic mode of the drive board. The workload significantly shortens the maintenance test cycle.

Description

A Test Bench for Driving Board of Railway DC600 Power Supply System

technical field

The utility model relates to the maintenance field of a railway DC600V power supply, in particular to a test bench for a driving board of a railway DC600 power supply system.

Background technique

At present, in the railway DC600 power supply system, the products produced by different manufacturers have the same overall function but different internal structures. For example, the functions of the driver board are controlled and diagnosed by one or more IGBTs (insulated gate transistors) to realize the on-off of IGBTs. And fault detection, but the driver boards of each manufacturer are independently designed and produced, and their circuit structures and principles are often different.

There are two main ways to maintain each board of the system: one is to return to the original factory for maintenance, and the other is to find a special maintenance company for cooperative maintenance; among them, the plan of returning to the original factory for maintenance is often available within the service period Obtained, under normal circumstances, the overall after-sales service period of the product is 3 years, and the warranty service will be canceled immediately after the after-sales service period expires; there are often many maintenance companies that have limited maintenance capabilities and single maintenance methods, and only It can be judged whether the board is repaired by installing the repaired board in the whole machine test. The power supply of the whole machine from each manufacturer must be used as the test system on site. The maintenance test conditions are limited, and the workload of the maintenance personnel is significantly increased, which leads to an increase in the maintenance cycle. .

Utility model content

In view of this, the utility model provides a test bench for the driving board of the railway DC600 power supply system, which aims to use a test device to test several driving boards with the same function, monitor the output parameters, and judge whether the board is faulty.

The technical solution adopted by the utility model is specifically: a test bench for the driving board of a railway DC600 power supply system, including a signal conversion unit, an operation unit and a control unit; wherein:

The signal conversion unit described in the test bench of the railway DC600 power supply system drive board is connected to the drive board of the power supply system through an interface;

The operation unit is connected to the signal conversion unit and the control unit respectively, and the control unit is connected to the signal conversion unit;

A display unit is also included, and the display unit is connected with the driving board.

In the above-mentioned test bench for the driving board of the railway DC600 power supply system, the interface is a PCB terminal interface, and the PCB terminal interface centralizes and unifies the connection ports of several types of driving boards.

In the test bench of the above-mentioned railway DC600 power supply system drive board, the display unit includes a voltmeter and a fault display lamp, the voltmeter is used to display the operating voltage of the drive board in static mode and dynamic mode, and the fault display lamp Used to light up when the driver board fails.

In the test bench of the above-mentioned railway DC600 power supply system drive board, the operating unit includes a rotary switch and a button switch, the rotary switch is used to select and distribute the corresponding working voltage of each type of drive board, and the push button switch is used for according to the The operating voltage sends the start signal to the control unit.

In the test bench for the above-mentioned railway DC600 power supply system drive board, the model of the drive board is KC2 of the China Academy of Railway Sciences.

In the above-mentioned test bench for the driving board of the railway DC600 power supply system, the model of the driving board is ZYY67-02-52-01-00G of Wuhan Zhengyuan Railway Electric Co., Ltd.

In the test bench for the above-mentioned railway DC600 power supply system drive board, the model of the drive board is one of CDXX05/15 or CDXX16 of Hangzhou Credit.

In the test bench for the above-mentioned driving board of the railway DC600 power supply system, the model of the driving board is one of HS3.226.361MX or HS7.820.422 of Nanjing Huashi Electronic Technology Co., Ltd.

In the above-mentioned test bench for the driving board of the railway DC600 power supply system, the model of the driving board is TET313B-11-01-GY of Zhuzhou Times Electric Locomotive Research Institute.

The beneficial effects that the utility model produces are:

Compared with the traditional method of judging whether the board is repaired by installing the repaired board in the whole machine, the utility model can complete the board performance test of the series drive board 3 through a test bench, and realizes the Detect the general equipment of the inverter drive board 3 of the DC600V power supply system of each manufacturer, which saves more equipment needed on the site of the test system and the power supply of the whole machine of each manufacturer, and the maintenance cycle is significantly shortened;

Moreover, the test bench can simulate the working status of the drive board 3 in both static and dynamic modes, and the fault display can also be divided into two types: one is the intuitive voltage display (manual), and the other is the fault light display (automatic). . On the one hand, this equipment can be applied to various maintenance stations, on the other hand, this equipment can also be extended to various railway bureau depots, and can also be used as experimental teaching equipment for relevant colleges or daily maintenance boards for various maintenance companies.

Description of drawings

The present invention is more fully and better understood when considered in conjunction with the accompanying drawings. The drawings described here are used to provide a further understanding of the utility model, and the embodiments and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model.

Fig. 1 is the structural representation of the test bench of a kind of railway DC600 power supply system driver board of the present utility model;

Fig. 2 is a test schematic diagram of an embodiment of a test bench for a railway DC600 power supply system drive board of the present invention.

In the figure: 1. Signal conversion unit 2, control unit 3, drive board 4, display unit 5, operation unit.

Detailed ways

The technical solution of the present utility model will be described in further detail below in conjunction with the accompanying drawings and embodiments.

A test bench for a railway DC600 power supply system drive board as shown in Figure 1, including a signal conversion unit 1, a control unit 2, a (different type) drive board 3, a display unit 4 and an operating unit 5; wherein: signal conversion Unit 1 is connected to the drive board 3 of the power supply system through an interface; the operation unit 5 is connected to the signal conversion unit 1 and the control unit 2 respectively, and the control unit 2 is connected to the signal conversion unit 1; the display unit 4 is connected to the drive board 3 .

The display unit 4 includes a voltmeter for manually displaying the operating voltage of the drive board in static mode and dynamic mode, and automatically turns on a fault display lamp when the drive board fails.

The operation unit 5 includes a rotary switch for selecting and distributing corresponding operating voltages of each type of driving board 3 and a button switch for sending an activation signal to the control unit 2 according to the aforementioned operating voltages.

The signal conversion unit 2 integrates the test conditions of the driver boards of the five major manufacturers, that is, to centralize and unify the interfaces of various driver boards of each manufacturer (concentrate all the driver board interfaces and unify them on one detection equipment panel), and integrate different driver boards The connection port of the board 3 is converted into a unified PCB terminal interface, and the control unit 2 controls the output of various work instructions for the drive board 3, and detects the output voltage parameters. When a fault occurs, a fault signal occurs. The signal distribution of various driver boards is realized through the operation unit 5, specifically:

The operation unit 5 is mainly used for distributing the operating voltage and start-up identification of various types of drive boards 3. First, select and distribute the operating voltages of various types of drive boards 3 through the rotary switch of the operation unit 5, and then through the operation unit 5 with lights The indicated button switch sends a start signal to the control unit 2, and the signal conversion unit 1 performs unified interface conversion for different types of driver boards 3, and transmits the start command sent by the control unit 2 to the driver board 3 and is used to transmit the output of the driver board 3 to The voltage parameters of the display unit 1 and the control unit 2; the control unit 2 is used to identify the models of various drive boards 3, monitor the voltage parameters fed back by the signal conversion unit 1, and judge whether the drive board 3 is faulty; the voltage of the display unit 4 The table is used to display the output voltage parameters of the driver board 3 before starting (static mode) and after starting (dynamic mode).

In this embodiment, the test bench can test the drive board 3 (Tieke drive board (model KC2)) of the internal power supply of Tieke, Zhengyuan, Xinyu, Zhushi and Huashi (but not limited to these five types) Test and monitor the output parameters to determine whether the board is faulty.

Tieke driver board (model KC2), Zhengyuan driver board (model ZYY67-02-52-01-00G), credit driver board (model CDXX05/15 and CDXX16), Huashi driver board (model HS3. 226.361MX and HS7.820.422) and the plant drive plate (TET313B-11-01-GY)) for performance testing. First, the selection switch of the operation unit 5 distributes the operating voltage of the driver board 3 to the signal conversion unit 1 (ie, the input and output board), so that the driver board 3 works in a static mode. At this time, a certain voltage characteristic output by the driver board 3 is passed through the input and output The board is sent to the display unit 4 (that is, the voltmeter) to display the voltage parameters, and at the same time, the voltage parameters are sent to the control unit 2 (that is, the main control board) for data diagnosis, to judge whether the drive board 3 is normal in the static mode at this time, and to confirm the drive board After the board card 3 is static and free of faults, the start button of the operation unit 5 sends a start command. At this time, the voltage parameters of the drive board 3 working in the dynamic mode will change. The voltmeter of the display unit 4 can be visually judged, and at the same time Data diagnosis can be carried out through the main control board to judge whether its output characteristics are faulty, and a fault indication signal is automatically sent after the fault is confirmed, and the occurrence of the fault signal is automatically displayed through the display unit 4 .

As shown in Figure 2, the above-mentioned test bench is used to test the performance of the Tieke driver board. Firstly, the driver board 3 is connected to the input and output board. At this time, the operation unit 5 controls K1, K4 is closed, +5V and + The 24V working voltage is sent to the driver board 3 through the input and output board. The driver board 3 is in the static mode. In this mode, the six output voltages of the driver board 3 should be between 8-10V of the negative phase. The output voltage parameters are transmitted to the six voltmeters through the input and output boards for display, while the main control board receives six channels of voltage data for analysis and comparison to determine whether the board of the driver board 3 is normal in the static mode. If it is not normal, issue a fault command and light up the corresponding fault indicator light. If the data in the static mode is normal, send the drive board startup command through the TK button of the operation unit 5. At this time, the output voltage parameter should have an obvious numerical change, and the original reverse phase 8-10V should be changed to a positive phase voltage. Its value should be between 1.8-3V. The six voltmeters of the display unit 4 display the six output voltages respectively. At this time, the main control board receives the six voltage parameters again and analyzes and compares them to judge whether the driving board after starting is normal. Light up the corresponding fault indicator light. If the voltage parameters are consistent, the main control board will not issue a fault indication, which means that the test of the driver board 3 board is normal. Except for Tieke, the test of drive boards such as Zhengyuan, Xinyu, Zhusuo and Huashi can also be carried out by analogy with reference to this embodiment.

It can be seen that the driver board 3 can visually check whether its output voltage parameters are balanced and consistent before and after startup, and can diagnose whether a fault occurs through the main control board. Not only the whole process is convenient and simple to operate, but also quickly and accurately judge whether the plate is good or bad, which greatly improves the efficiency of work and maintenance. Moreover, this test method obviously does not require the support of power supply systems and power supply systems of various manufacturers, and is not limited by site and time. Based on the advantages of integration and compatibility, the cost is significantly reduced.

The test bench of the utility model can concentrate the test conditions of the drive boards 3 of five manufacturers (but not limited thereto), and simulate the working process of the drive board 3 without installing the repaired drive board 3 into the power supply of the corresponding manufacturer for power supply. The test greatly reduces the workload of the panel test. The test bench can fully check the various input and output parameters of the drive board. On the one hand, through the various data displayed by the display unit, the maintenance personnel can fully and clearly understand the overall working status of the board and the working process is clear and easy to understand, and the test The operation of the table is simple and convenient: first, connect the drive board 3 to the corresponding interface of the signal conversion unit 1, and then distribute the working power with the rotary switch of the operation unit 5; finally, press the corresponding button switch of the operation unit 5 to start the drive board 3 to start working.

As mentioned above, the embodiments of the present utility model have been described in detail. Obviously, as long as they do not substantially deviate from the invention points and effects of the present utility model, the modifications that are obvious to those skilled in the art are also included in the present utility model. within the scope of the new protection.

Claims (9)

1. a railway DC600 power-supply system drive plate is test bed, it is characterized in that, comprises signal conversion unit, operating unit and control module; Wherein:

Described signal conversion unit is connected with the drive plate of power-supply system by interface;

Described operating unit is connected respectively with described signal conversion unit, described control module, and described control module is connected with described signal conversion unit;

Also comprise display unit, described display unit is connected with described drive plate.

2. railway DC600 power-supply system drive plate according to claim 1 is test bed, and it is characterized in that, described interface is pcb terminal interface, and described pcb terminal interface concentration has unified the connectivity port of the drive plate of several models.

3. railway DC600 power-supply system drive plate according to claim 1 is test bed, it is characterized in that, described display unit comprises voltage table and malfunction coefficient lamp, described voltage table is used for the operating voltage of display driver plate under static schema and dynamic mode, and described malfunction coefficient lamp is used for lighting when drive plate fault.

4. railway DC600 power-supply system drive plate according to claim 1 is test bed, it is characterized in that, described operating unit comprises rotary switch and pushbutton switch, described rotary switch operating voltage corresponding to each model drive plate distributes for selecting, and described pushbutton switch is used for, according to described operating voltage, enabling signal is sent to control module.

5. railway DC600 power-supply system drive plate according to claim 2 is test bed, and it is characterized in that, the model of described drive plate is the KC2 of China Academy of Railways Sciences.

6. railway DC600 power-supply system drive plate according to claim 2 is test bed, and it is characterized in that, the model of described drive plate is the ZYY67-02-52-01-00G of Zhengyuan Railway Electric Co., Ltd., Wuhan.

7. railway DC600 power-supply system drive plate according to claim 2 is test bed, and it is characterized in that, the model of described drive plate is the one in CDXX05/15 or CDXX16 of Hangzhou prestige.

8. railway DC600 power-supply system drive plate according to claim 2 is test bed, and it is characterized in that, the model of described drive plate is the one in HS3.226.361MX or HS7.820.422 of Nanjing HuaShi Electron Science Co., Ltd.

9. railway DC600 power-supply system drive plate according to claim 2 is test bed, and it is characterized in that, the model of described drive plate is the TET313B-11-01-GY of Zhuzhou epoch electric locomotive research institute.