CN101639514A - Detecting device for detecting IGBT - Google Patents
Detecting device for detecting IGBT Download PDFInfo
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- CN101639514A CN101639514A CN 200910070189 CN200910070189A CN101639514A CN 101639514 A CN101639514 A CN 101639514A CN 200910070189 CN200910070189 CN 200910070189 CN 200910070189 A CN200910070189 A CN 200910070189A CN 101639514 A CN101639514 A CN 101639514A
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- igbt
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- voltage regulator
- automatic coupling
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Abstract
The invention relates to a detecting device for detecting IGBT, comprising a shell and a testing circuit internally installed in the shell. The testing circuit consists of a power board, an I/O board,a central processing unit, a driver module, a micro breaker, an automatic coupling voltage regulator, a rectifying circuit, a filter circuit and an inverter circuit. A single-phase 220V, 50Hz alternating current power supply source is connected with the original edge of the automatic coupling voltage regulator in series; the secondary edge of the automatic coupling voltage regulator is connectedwith an AC voltmeter in parallel and inputs alternating voltage into a diode rectifier bridge module; the positive end of the automatic coupling voltage regulator is connected with a limit resistor inseries, is connected with a filter capacitor, a equalizing resistor and a DC voltmeter in parallel, and is connected with a fuse in series; +P and -N bus is connected with an inverse bridge formed byan IGBT module in parallel; the output end of the inverse bridge is connected with an output resistor; and the other end of the resistor is connected with the middle connecting point of the equalizing resistor. By detecting the PWM waveform of the output resistor, the detecting device can ensure the condition of the IGBT, has simple and easy measuring method, is time saving and labor saving, andis applicable to various IGBT detections.
Description
Technical field
The invention belongs to power electronic devices proving installation field, relate to a kind of proving installation that is used to detect IGBT, be applicable to the test of the main power device-power electronic devices IGBT of RHVC and inverter, determine that by test IGBT's is good with bad.
Background technology
Along with the development of Power Electronic Technique, the RHVC and the inverter that adopt IGBT to constitute have obtained widespread use.Yet, in the process of production RHVC and inverter, how to detect the good and bad critical process that has become in the production of IGBT.If every technical parameter of measuring IGBT, must purchase external a whole set of test instrumentation and testing table, and set up special test cabinet, investment is big, the cycle is long, and the testing crew of need cultivate professional, general enterprise holds and can't stand huge fund input, and reality is produced good Yu the bad method of measuring IGBT that does not have letter and easily go.
Summary of the invention
Problem to be solved in the utility model is, overcome the deficiencies in the prior art, a kind of letter is provided and easily row can detect good Yu the bad device of IGBT, promptly pass through the PWM waveform of detection output resistor, just can determine that IGBT is good and bad, reach save time, the purpose of laborsaving, investment-saving.
The present invention solves its technical matters and takes following technical scheme to realize:
According to a kind of proving installation that is used to detect IGBT provided by the invention, comprise the test circuit that is equipped with in housing and the housing, described test circuit is by power panel, the I/O plate, central processing unit, driver module, little isolating switch, automatic coupling voltage regulator and rectification, filtering, inverter circuit is formed, single-phase 220V, the 50Hz AC power is through the former limit of little isolating switch 1 serial connection automatic coupling voltage regulator 2, the secondary of automatic coupling voltage regulator also connects A.C. voltmeter 3 and alternating voltage is input to diode rectification bridge module 4, behind the anode serial connection current-limiting resistance 5 of diode rectification bridge module, filter capacitor 6 is connected in parallel, 7 and equalizing resistance 8,9 and D.C. voltmeter 10, be connected in series fuse 18 again, the inverter bridge 12 that+P ,-N bus are connected in parallel and are made of the IGBT module; Central processor CPU 15 connects driver module 16 and I/O plate 14 respectively, and driver module connects the IGBT module, and the output terminal of the inverter bridge that is made of I GBT module connects output resistor 11; The other end of resistor is received on the intermediate connection point of equalizing resistance 8,9, and power panel 13 connects central processor CPU, I/O plate and driver module respectively; Cooling fan and air channel 17 are housed in the housing.
It is to take following technical scheme further to realize that the present invention solves its technical matters:
Aforesaid driver module adopts the optical fiber driver module.
The present invention compared with prior art has significant advantage and beneficial effect.
Instrument, instrument that the present invention uses are simple and easy, only use oscillograph, multimeter get final product, measuring method simply, easily go, save time, laborsaving, be suitable for the detection of various IGBT, applied widely, detect output resistor the PWM waveform, directly perceived, the interface is clear, energy consumption is little.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention;
Fig. 2 is a test circuit theory diagram of the present invention;
Fig. 3 is rectification of the present invention, filtering, inverter circuit schematic diagram.
Wherein: 1, little isolating switch 2, automatic coupling voltage regulator 3, input ac voltage table 4, diode rectification module 5, current-limiting resistance 6,7, filter capacitor 8,9, equalizing resistance 10, DC bus-bar voltage table 11, output resistor 12, inverter bridge 13, power panel 14, I/O plate 15, central processor CPU 16, driver module 17, cooling blower and the air channel 18, fuse 19, the housing that constitute by the IGBT module
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to embodiment provided by the invention, structure, feature is effect extremely, describe in detail as after.
See also Fig. 1～3, a kind of proving installation that is used to detect IGBT, comprise the test circuit that is equipped with in housing and the housing, described test circuit is made up of power panel, I/O plate, central processing unit, driver module, little isolating switch, automatic coupling voltage regulator and rectification, filtering, inverter circuit, single-phase 220V, 50Hz AC power are through the former limit of little isolating switch 1 serial connection automatic coupling voltage regulator 2, and the secondary of automatic coupling voltage regulator also connects the alternating voltage Table V
13 and alternating voltage is input to diode rectification bridge module 4, behind the anode serial connection current-limiting resistance 5 of diode rectification bridge module, filter capacitor 6,7 and equalizing resistance 8,9 and DC voltage Table V are connected in parallel
210, be connected in series fuse 18 again, the inverter bridge 12 that+P ,-N bus are connected in parallel and are made of the IGBT module; Central processor CPU 15 connects driver module 16 and I/O plate 14 respectively, and driver module 16 connects the IGBT modules, and the output terminal of the inverter bridge 12 that is made of the IGBT module connects output resistor 11; The other end of resistor is received on the intermediate connection point of equalizing resistance 8,9, and power panel 13 connects central processor CPU, I/O plate and driver module respectively; Cooling fan and air channel 17 are housed in the housing, diode rectification bridge module and IGBT module are dispelled the heat, cool off.Alternating current 220V, 50Hz power frequency electricity are input to the former limit of automatic coupling voltage regulator through miniature circuit breaker, the alternating current of its secondary is input to rectifier bridge after pressure regulation, rectifier bridge becomes direct current with alternating current, after direct current signal enters the filter capacitor filtering voltage regulation, enter single brachium pontis inversion unit that the IGBT module constitutes again, control opening and turn-offing of IGBT by cpu central processing unit and driver module, inversion unit enters output resistor with the signal that direct current becomes voltage, frequency adjustable.
Single-phase 220V, 50Hz alternating current are input to the former limit of automatic coupling voltage regulator 2 through little isolating switch 1, after pressure regulation, be input to rectifier bridge module 4, rectifier bridge becomes direct current with alternating current, through current-limiting resistance 5, direct current signal enters filter capacitor 6 and 7, and equalizing resistance 8 and 9 is born the dynamic voltage balancing task of electric capacity 6 and 7.Filter capacitor 6 and 7 is finished filtering, voltage stabilizing task.Direct current signal feeds single brachium pontis inversion unit that the IGBT module constitutes through fuse 18 (playing the short-circuit protection effect).By the opening and turn-offing of cpu central processing unit and driver module control IGBT, inversion unit becomes the signal (pwm signal) of voltage, frequency adjustable with direct current, and pwm signal enters output resistor 11.Driver module plays the function served as bridge of system control cpu and inversion unit.Driver module adopts optical fiber to drive, and realizes the conversion of drive signal, reaches the purpose of electrical isolation, has very strong antijamming capability simultaneously.Power panel 13 is supplied with CPU, I/O plate, the required power supply of driver module.I/O plate 14 is finished input, output signal transmission and the exchange of switching value, analog quantity.17 pairs of rectifier bridge modules in cooling fan and air channel and IGBT module are dispelled the heat, cooling.
Principle of work: (as shown in Figure 3), single-phase 220V, 50HZ alternating current feed fuse Q
1, little circuit breaker Q 1 output terminal series connection automatic coupling voltage regulator TDGC, A.C. voltmeter V1 demonstrates the ac output voltage after the automatic coupling voltage regulator pressure regulation.This voltage is input to rectifier bridge DZL, and rectifier bridge becomes direct current with alternating current, through the current-limiting resistance R of series connection
0, direct current signal has entered two electric capacitys and has equated the series capacitance C that voltage is identical
01And C
02, and carry out filtering, voltage stabilizing.Equalizing resistance R
1And R
2Be parallel to capacitor C respectively
01And C
02Go up (R
1And R
2Resistance, power are identical), the DC bus-bar voltage after filtering, the voltage stabilizing is finished the demonstration task by the V2 that is connected in parallel on the bus.The fuse RD of direct current signal through being connected on the positive bus-bar P is passed on the single brachium pontis inverter bridge that is made of 2 unit IGBT modules.The power output point E1/C2 output pwm signal of two unit IGBT is to output resistor R
WOn, R
WAnother output point and be connected in R
1And R
2Equal pressure point on.As IGBT module S
1Conducting, S
2During shutoff, electrochemical capacitor C
01Discharge, and to output resistor R
WThe power supply, simultaneously, by the rectifier bridge DC link to electrochemical capacitor C
02Charge.Otherwise, as IGBT module S
2Open, S
1During shutoff, electrochemical capacitor C
02Discharge to the output resistor power supply, is passed through the rectifier bridge DC link simultaneously to electrochemical capacitor C
01Charge.As IGBT module S
1Open S
2During shutoff, the voltage waveform at output resistor two ends is positive PWM ripple; As IGBT module S
2Open-minded, S
1During shutoff, the voltage waveform at output resistor two ends is negative PWM ripple, observes the PWM waveform from oscillograph and just can judge that IGBT's is good with bad.
Claims (2)
1. proving installation that is used to detect IGBT, comprise the test circuit that is equipped with in housing and the housing, it is characterized in that: described test circuit is by power panel, the I/O plate, central processing unit, driver module, little isolating switch, automatic coupling voltage regulator and rectification, filtering, inverter circuit is formed, single-phase 220V, the 50Hz AC power is through the former limit of little isolating switch (1) serial connection automatic coupling voltage regulator (2), the secondary of automatic coupling voltage regulator also connects A.C. voltmeter (3) and alternating voltage is input to diode rectification bridge module (4), behind the anode serial connection current-limiting resistance (5) of diode rectification bridge module, filter capacitor (6 is connected in parallel, 7) and equalizing resistance (8,9) and D.C. voltmeter (10), be connected in series fuse (18) again, the inverter bridge (12) that+P ,-N bus are connected in parallel and are made of the IGBT module; Central processor CPU (15) connects driver module (16) and I/O plate (14) respectively, and driver module connects the IGBT module, and the output terminal of the inverter bridge that is made of the IGBT module connects output resistor (11); The other end of resistor is received on the intermediate connection point of equalizing resistance (8,9), and power panel (13) connects central processor CPU, I/O plate and driver module respectively; Cooling fan and air channel (17) are housed in the housing.
2. the proving installation that is used to detect IGBT according to claim 1 is characterized in that: described driver module adopts the optical fiber driver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910070189 CN101639514B (en) | 2009-08-24 | 2009-08-24 | Detecting device for detecting IGBT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910070189 CN101639514B (en) | 2009-08-24 | 2009-08-24 | Detecting device for detecting IGBT |
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| CN101639514A true CN101639514A (en) | 2010-02-03 |
| CN101639514B CN101639514B (en) | 2011-06-22 |
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|---|---|---|---|
| CN 200910070189 Active CN101639514B (en) | 2009-08-24 | 2009-08-24 | Detecting device for detecting IGBT |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073005A (en) * | 2010-11-10 | 2011-05-25 | 中国北车股份有限公司大连电力牵引研发中心 | Testing system and method for testing operation of IGBT (insulated gate bipolar transistor) of power module of converter |
| CN102403714A (en) * | 2011-11-15 | 2012-04-04 | 上海市电力公司 | Direct-current voltage balancing plate for modular active filter |
| CN102879726A (en) * | 2012-10-29 | 2013-01-16 | 湖南南车时代电动汽车股份有限公司 | Insulated gate bipolar translator (IGBT) module performance detection device and method |
| CN103105572A (en) * | 2013-01-25 | 2013-05-15 | 北京金风科创风电设备有限公司 | Device for testing IGBT module |
| CN103616601A (en) * | 2013-12-09 | 2014-03-05 | 北京天源科创风电技术有限责任公司 | Test system for wind generating set converter IGBT drive board |
| CN104218782A (en) * | 2014-09-24 | 2014-12-17 | 阳光电源股份有限公司 | Inverter and DC (Direct Current) bus circuit thereof |
| CN105652177A (en) * | 2016-03-11 | 2016-06-08 | 广东明阳龙源电力电子有限公司 | Testing tool for multi-specification IGBT performance testing |
| CN107155351A (en) * | 2015-03-18 | 2017-09-12 | 三菱电机株式会社 | Photoelectrical coupler diagnostic device |
| CN108054792A (en) * | 2017-12-04 | 2018-05-18 | 广东美的制冷设备有限公司 | Power tube power supply circuit and power tube test device |
| CN110794285A (en) * | 2019-10-18 | 2020-02-14 | 淮安中科晶上智能网联研究院有限公司 | Full-bridge switching circuit state detection circuit and method |
| CN112540279A (en) * | 2020-12-04 | 2021-03-23 | 荣信汇科电气股份有限公司 | Crimping formula IGBT module current conversion testing arrangement |
| CN113219276A (en) * | 2021-04-14 | 2021-08-06 | 安徽佑赛科技股份有限公司 | Quality detection device for power unit module |
| CN116449170A (en) * | 2023-06-14 | 2023-07-18 | 佛山市联动科技股份有限公司 | Testing device and testing method for testing two-pin device and three-pin device |
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| CN2610126Y (en) * | 2003-03-17 | 2004-04-07 | 中国石化胜利油田有限公司规划设计研究院 | Midium-pressure frequency control of motor speed control device for submersible electric pump |
| FR2874767B1 (en) * | 2004-08-27 | 2006-10-20 | Schneider Toshiba Inverter | DEVICE FOR CONTROLLING A POWER TRANSISTOR |
| CN2859902Y (en) * | 2005-11-28 | 2007-01-17 | 王三功 | In-line duplicate supply control device and in-line duplicate supply electric power unit |
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| CN102073005B (en) * | 2010-11-10 | 2013-01-09 | 中国北车股份有限公司大连电力牵引研发中心 | Testing system and method for testing operation of IGBT (insulated gate bipolar transistor) of power module of converter |
| CN102073005A (en) * | 2010-11-10 | 2011-05-25 | 中国北车股份有限公司大连电力牵引研发中心 | Testing system and method for testing operation of IGBT (insulated gate bipolar transistor) of power module of converter |
| CN102403714A (en) * | 2011-11-15 | 2012-04-04 | 上海市电力公司 | Direct-current voltage balancing plate for modular active filter |
| CN102879726A (en) * | 2012-10-29 | 2013-01-16 | 湖南南车时代电动汽车股份有限公司 | Insulated gate bipolar translator (IGBT) module performance detection device and method |
| CN102879726B (en) * | 2012-10-29 | 2016-11-23 | 湖南南车时代电动汽车股份有限公司 | A kind of IGBT module device for detecting performance and method |
| CN103105572B (en) * | 2013-01-25 | 2016-04-13 | 北京金风科创风电设备有限公司 | Device for testing IGBT module |
| CN103105572A (en) * | 2013-01-25 | 2013-05-15 | 北京金风科创风电设备有限公司 | Device for testing IGBT module |
| CN103616601B (en) * | 2013-12-09 | 2017-01-25 | 北京天源科创风电技术有限责任公司 | Test system for wind generating set converter IGBT drive board |
| CN103616601A (en) * | 2013-12-09 | 2014-03-05 | 北京天源科创风电技术有限责任公司 | Test system for wind generating set converter IGBT drive board |
| CN104218782A (en) * | 2014-09-24 | 2014-12-17 | 阳光电源股份有限公司 | Inverter and DC (Direct Current) bus circuit thereof |
| CN107155351B (en) * | 2015-03-18 | 2019-03-01 | 三菱电机株式会社 | Photoelectrical coupler diagnostic device |
| CN107155351A (en) * | 2015-03-18 | 2017-09-12 | 三菱电机株式会社 | Photoelectrical coupler diagnostic device |
| CN105652177B (en) * | 2016-03-11 | 2018-11-06 | 广东明阳龙源电力电子有限公司 | A kind of test fixture for more specification IGBT performance tests |
| CN105652177A (en) * | 2016-03-11 | 2016-06-08 | 广东明阳龙源电力电子有限公司 | Testing tool for multi-specification IGBT performance testing |
| CN108054792A (en) * | 2017-12-04 | 2018-05-18 | 广东美的制冷设备有限公司 | Power tube power supply circuit and power tube test device |
| CN108054792B (en) * | 2017-12-04 | 2022-03-22 | 广东美的制冷设备有限公司 | Power tube power supply circuit and power tube testing device |
| CN110794285A (en) * | 2019-10-18 | 2020-02-14 | 淮安中科晶上智能网联研究院有限公司 | Full-bridge switching circuit state detection circuit and method |
| CN110794285B (en) * | 2019-10-18 | 2021-06-22 | 淮安中科晶上智能网联研究院有限公司 | Full-bridge switching circuit state detection circuit and method |
| CN112540279A (en) * | 2020-12-04 | 2021-03-23 | 荣信汇科电气股份有限公司 | Crimping formula IGBT module current conversion testing arrangement |
| CN112540279B (en) * | 2020-12-04 | 2022-08-16 | 荣信汇科电气股份有限公司 | Crimping formula IGBT module current conversion testing arrangement |
| CN113219276A (en) * | 2021-04-14 | 2021-08-06 | 安徽佑赛科技股份有限公司 | Quality detection device for power unit module |
| CN116449170A (en) * | 2023-06-14 | 2023-07-18 | 佛山市联动科技股份有限公司 | Testing device and testing method for testing two-pin device and three-pin device |
| CN116449170B (en) * | 2023-06-14 | 2023-08-25 | 佛山市联动科技股份有限公司 | Testing device and testing method for testing two-pin device and three-pin device |
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| Publication number | Publication date |
|---|---|
| CN101639514B (en) | 2011-06-22 |
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