CN215813165U - Test system of wind generating set converter IGBT drive plate - Google Patents
Test system of wind generating set converter IGBT drive plate Download PDFInfo
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- CN215813165U CN215813165U CN202122017977.2U CN202122017977U CN215813165U CN 215813165 U CN215813165 U CN 215813165U CN 202122017977 U CN202122017977 U CN 202122017977U CN 215813165 U CN215813165 U CN 215813165U
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Abstract
The utility model belongs to the technical field of testing of driving equipment, and discloses a testing system for an IGBT driving board of a converter of a wind generating set. The method comprises the following steps: the controller is in signal connection with the IGBT driving board to be tested; the controller is provided with a matching module for comparing the consistency of the instruction information and the feedback information; the signal simulator is in signal connection with the controller and the IGBT driving board to be tested respectively; and the fault display lamp is arranged on the controller and used for displaying whether the IGBT driving board to be tested has a fault or not. The test system of the utility model has simple structure, convenient operation and complete functions.
Description
Technical Field
The utility model relates to the technical field of testing of driving equipment, in particular to a testing system of a converter IGBT driving board of a wind generating set.
Background
The description of the background of the utility model pertaining to the related art to which this invention pertains is given for the purpose of illustration only and for the purpose of facilitating an understanding of the contents of the present invention, and should not be taken as an admission or admission that the applicant expressly considered or assumed that the applicant considered prior art to the filing date of the first filing date of the present application.
A frequency converter adopted by the wind generating set mainly comprises a main control CCU, an IGBT drive board, an IGBT module and a feedback circuit. The IGBT drive board has the main functions of converting a control signal output by the CCU of the frequency converter controller into a driving signal of +/-15V, controlling the on and off of the IGBT to realize rectification and filtering, and feeding back the running states of the IGBT and the drive board to the CCU. The IGBT drive plate has higher failure rate in the daily operation process, complex maintenance and replacement work, high price and long purchase period, and the normal operation of the unit is seriously influenced once the failure occurs.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model aims to provide a test system for a converter IGBT drive board of a wind generating set.
The purpose of the utility model is realized by the following technical scheme:
a test system of a wind generating set converter IGBT drive plate comprises:
the controller is in signal connection with the IGBT driving board to be tested; the controller is provided with a matching module for comparing the consistency of the instruction information and the feedback information;
the signal simulator is in signal connection with the controller and the IGBT driving board to be tested respectively;
and the fault display lamp is arranged on the controller and used for displaying whether the IGBT driving board to be tested has a fault or not.
Further, the fault display lamp comprises a temperature fault display lamp, a current fault display lamp and a voltage fault display lamp.
Furthermore, the signal simulator is in signal connection with the collector and the emitter of the IGBT driving board to be tested respectively.
Furthermore, the controller is provided with a self-checking signal generator, and the self-checking signal generator is connected with the signal simulator.
Further, the self-test signal generator comprises a temperature signal generating module, a voltage signal generating module and a current signal generating module.
Further, the input voltage of the controller is 8-24V.
Furthermore, the controller is connected with a display screen, and the display screen is used for displaying the test information.
Furthermore, the controller is provided with a counting module, and the counting module is in signal connection with the matching module.
Furthermore, the signal simulator comprises an upper bridge arm driving signal simulation module and a lower bridge arm driving signal simulation module.
By the scheme, the utility model at least has the following beneficial effects:
the utility model performs performance test and fault protection test on the IGBT drive board to be tested through signal simulation, can find the problems of the IGBT drive board to be tested in time, and has simple structure and safe and convenient operation.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described as follows:
FIG. 1 is a schematic structural diagram of a test system of an IGBT drive board of a wind generating set converter.
Detailed Description
The present invention is further described in detail with reference to the following examples, which should be understood as the technical solutions of the present invention are more easily understood by those skilled in the art, and should not be construed as limiting the scope of the present invention.
In the following description, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance. The following description provides embodiments of the utility model, which may be combined with or substituted for various embodiments, and the utility model is thus to be construed as embracing all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then the utility model should also be construed as including embodiments that include one or more of all other possible combinations of A, B, C, D, even though such embodiments may not be explicitly recited in the following text.
The signal connection in the following schemes can adopt wireless or wired connection.
With reference to fig. 1, a test system for an IGBT driver board of a wind generating set converter includes:
the controller 1 is in signal connection with the IGBT drive board 2 to be tested; the controller 1 is provided with a matching module 101 for comparing the consistency of the instruction information and the feedback information;
the signal simulator 3 is in signal connection with the controller 1 and the IGBT drive plate 2 to be tested respectively;
and the fault display lamp 102 is arranged on the controller and used for displaying whether the IGBT driving board 2 to be tested has a fault or not.
In some embodiments of the present invention, the fault indicator lights 102 include temperature fault indicator lights, current fault indicator lights, and voltage fault indicator lights. A plurality of fault lamps can guarantee to test a plurality of indexes, reach the accurate nature requirement of test.
In some embodiments of the present invention, the signal simulator 3 is in signal connection with the collector 201 and the emitter 202 of the IGBT driving board 2 to be tested, respectively. The collector and the emitter can be tested together respectively, and the test comprehensiveness is guaranteed.
In some embodiments of the present invention, a self-test signal generator 103 is disposed on the controller, and the self-test signal generator 103 is connected to the signal simulator 3. The signal generator is used to test the performance of the fault protection system of the driver board itself.
In some embodiments of the present invention, the self-test signal generator 103 includes a temperature signal generation module, a voltage signal generation module, and a current signal generation module. Various signals are tested respectively, and the performance of the protection system can be tested at multiple angles.
In some embodiments of the present invention, the input voltage of the controller 1 is 8-24V.
In some embodiments of the utility model, the controller is connected to a display 4, and the display 4 is used for displaying the test information. The display screen can intuitively display the test result and can be a computer, a tablet, a mobile phone and the like.
In some embodiments of the present invention, the controller 1 is provided with a counting module 104, and the counting module 104 is in signal connection with the matching module 101. The counting module can display the number of matching errors more intuitively.
In some embodiments of the present invention, the signal simulator includes an upper bridge arm driving signal simulation module and a lower bridge arm driving signal simulation module. The driving test of the upper and lower bridge arms is also one aspect of the performance test of the driving plate, and the performance of the driving plate can be comprehensively tested.
By the scheme, the utility model at least has the following beneficial effects:
the utility model performs performance test and fault protection test on the IGBT drive board to be tested through signal simulation, can find the problems of the IGBT drive board to be tested in time, and has simple structure and safe and convenient operation.
The working principle is as follows:
after the signal simulator is in signal connection with the driving board to be tested, the driving board to be tested firstly sends signals including temperature, voltage, current, fault and the like to the signal simulator, the signal simulator sends the signals to the controller, and the controller judges whether the fault exists according to the signals. Whether the driving board has faults or what kind of faults can be monitored according to the display condition of the display lamp on the controller, and fault monitoring is completed.
The self-checking signal generator can randomly or according to the appointed signal generate a series of normal pulse and fault signal, send them to the signal simulator, the signal simulator sends the information to the driving board to be tested, the driving module on the driving board to be tested can make corresponding feedback, if the input signal is normal signal, the information fed back to the signal simulator is normal, if the abnormal signal is fed back to be a fault signal, the feedback signal is matched with the signal generated before in a matching module on the controller, the matching result is sent to a display, the matching result can be visually seen, the counter can transmit specific data to the display, and thus, if the matching is accurate, the fault protection system is normal, and if the matching result is large, the protection system of the driving plate is in a problem and needs to be maintained.
The device can test whether the fault occurs or not and can also test the fault protection system of the drive plate, one set of device can simultaneously complete two tests, and the safety of the drive plate is comprehensively ensured.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a test system of wind generating set converter IGBT drive plate which characterized in that includes:
the controller is in signal connection with the IGBT driving board to be tested; the controller is provided with a matching module for comparing the consistency of the instruction information and the feedback information;
the signal simulator is in signal connection with the controller and the IGBT driving board to be tested respectively;
and the fault display lamp is arranged on the controller and used for displaying whether the IGBT driving board to be tested has a fault or not.
2. The test system for the IGBT drive board of the converter of the wind generating set according to claim 1, characterized in that the fault display lamps comprise a temperature fault display lamp, a current fault display lamp and a voltage fault display lamp.
3. The test system of the IGBT drive board of the converter of the wind generating set according to claim 1, characterized in that the signal simulator is in signal connection with a collector and an emitter of the IGBT drive board to be tested respectively.
4. The test system of the wind generating set converter IGBT drive plate according to claim 1, characterized in that a self-test signal generator is arranged on the controller, and the self-test signal generator is connected with the signal simulator.
5. The test system of the IGBT drive plate of the converter of the wind generating set according to claim 4, wherein the self-test signal generator comprises a temperature signal generating module, a voltage signal generating module and a current signal generating module.
6. The test system for the IGBT drive board of the converter of the wind generating set according to claim 1, characterized in that the input voltage of the controller is 8-24V.
7. The test system for the IGBT drive board of the converter of the wind generating set according to claim 1, characterized in that the controller is connected with a display screen, and the display screen is used for displaying test information.
8. The test system of the wind generating set converter IGBT drive plate according to claim 1, characterized in that a counting module is arranged on the controller, and the counting module is in signal connection with the matching module.
9. The test system for the IGBT drive board of the converter of the wind generating set according to claim 1, wherein the signal simulator comprises an upper bridge arm drive signal simulation module and a lower bridge arm drive signal simulation module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122017977.2U CN215813165U (en) | 2021-08-25 | 2021-08-25 | Test system of wind generating set converter IGBT drive plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122017977.2U CN215813165U (en) | 2021-08-25 | 2021-08-25 | Test system of wind generating set converter IGBT drive plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215813165U true CN215813165U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122017977.2U Active CN215813165U (en) | 2021-08-25 | 2021-08-25 | Test system of wind generating set converter IGBT drive plate |
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| CN (1) | CN215813165U (en) |
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2021
- 2021-08-25 CN CN202122017977.2U patent/CN215813165U/en active Active
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