CN203350407U - IGBT driving module double-pulse testing device - Google Patents
IGBT driving module double-pulse testing device Download PDFInfo
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- CN203350407U CN203350407U CN 201320463704 CN201320463704U CN203350407U CN 203350407 U CN203350407 U CN 203350407U CN 201320463704 CN201320463704 CN 201320463704 CN 201320463704 U CN201320463704 U CN 201320463704U CN 203350407 U CN203350407 U CN 203350407U
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Abstract
The utility model discloses an IGBT driving module double-pulse testing device. The IGBT driving module double-pulse testing device comprises a simulation controller, an oscilloscope, a high-voltage power supply and a load inductor, wherein the oscilloscope, the high-voltage power supply and the load inductor are integrated in a double-pulse testing cabinet, and the simulation controller is provided with a testing main board connected with a power unit to be tested; the positive pole of the high-voltage power supply and the negative pole of the high-voltage power supply are connected with a positive bus-bar wire and a negative bus-bar wire respectively which are outputted by the simulation controller; voltage testing ends of the oscilloscope are connected with the bus wires and phase wire lead-out wires which are outputted by the simulation controller through voltage probes; a current testing end of the oscilloscope is connected with one bus wire through a current probe; one end of the load inductor is connected with phase line lead-out lines outputted by the simulation controller; and the other end of the load inductor is connected with one bus wire outputted by the simulation controller. The IGBT driving module double-pulse testing device can authentically capture actual work situation of a power unit in vehicle motor controller with accurate test results, and at the same time, can optimize the performance of the power unit, and can be either applicable to experiments or factory test of mass production.
Description
Technical field
The utility model relates to the checkout equipment of a kind of IGBT and drive plate, particularly relates to a kind of IGBT driver module dipulse proving installation.
Background technology
Along with the demand that national energy-saving reduces discharging, electric automobile starts in China big and medium-sized cities universal gradually, and especially the electric bus of Government-Leading and electric taxi project, make immeasurable contribution for the national energy-saving emission reduction tasks.And electric vehicle controller has also obtained everybody great attention as parts the most key on electric automobile, its development and technical merit are subject to the extensive concern in national ministries and commissions and market always, IGBT and driving are parts the most key and expensive in electric vehicle controller, the quality of its quality has directly determined failure rate and the serviceable life of electric automobile, in the electric automobile popularization stage, plays vital effect.
Traditional dipulse experiment can be measured IGBT and drive plate in laboratory, it is requisite testing procedure in the design power unit, but the test in laboratory more or less can be different from power cell and be directly installed on the situation in electric vehicle controller, sometimes do not find any problem when test, but when power cell is installed in electric vehicle controller, can bring the unknown problems such as stray inductance, this may burn electric vehicle controller; In addition, traditional dipulse test platform is because the restrictions such as volume are difficult to meet the test of dispatching from the factory of mass production; Moreover traditional test is often just tested for the IGBT of a phase, can't obtain accurately test data, after power cell is packed electric vehicle controller into, also just can't guarantee the performance of controller.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of simple and quick, IGBT driver module dipulse proving installation that testing efficiency is high is provided, it is undertaken integrated by each test component, realize the special test of automobile controller, can catch really the real work situation of power cell in automotive motor controller, test result is accurate, but the performance of while optimizing power unit, be not only applicable to experiment, be applicable to the test of dispatching from the factory of batch production yet.
The purpose of this utility model is achieved through the following technical solutions: a kind of IGBT driver module dipulse proving installation, it comprises analog controller, oscillograph, high-voltage power supply and load inductance, oscillograph, high-voltage power supply and load inductance are integrated in dipulse test cabinet, analog controller inside is integrated with testing host, and testing host connects power cell to be measured; The positive bus-bar wire of the anodal connecting analog controller output of high-voltage power supply, the negative busbar wire of negative pole connecting analog controller output.
Oscillographic voltage tester end is by bus wire and the phase phase extension line of the output of voltage probe connecting analog controller, and oscillographic testing current end is by the bus wire of current probe connecting analog controller output; One end of load inductance is by the phase phase extension line of p-wire connecting analog controller output, and the other end is by the bus wire of p-wire connecting analog controller output.
Described voltage probe is High Pressure Difference component voltage probe, and current probe is the Luo-coil current probe.
Described phase line extension line comprises U phase extension line, V phase extension line and W phase extension line, and described bus wire comprises positive bus-bar wire and negative busbar wire.
Described oscillograph comprised with being connected of analog controller:
(1) when test U/V/W above manages mutually, oscillographic voltage tester end is by positive bus-bar wire and the U/V/W phase extension line of the output of voltage probe connecting analog controller, and oscillographic testing current end is by the negative busbar wire of current probe connecting analog controller output;
(2) when test U/V/W manages down mutually, oscillographic voltage tester end connects the negative busbar wire of U/V/W phase extension line and analog controller output by voltage probe, oscillographic testing current end is by the positive bus-bar wire of current probe connecting analog controller output.
Described load inductance comprised with being connected of analog controller:
(1) when test U/V/W above manages mutually, the U/V/W phase extension line that an end of load inductance is exported by p-wire connecting analog controller, the negative busbar wire that the other end is exported by p-wire connecting analog controller;
(2) as test U/V/W mutually during lower pipe, an end of load inductance is by the U/V/W phase extension line of p-wire connecting analog controller output, and the other end is by the positive bus-bar wire of p-wire connecting analog controller output.
Described dipulse test cabinet is provided with the load inductance double throw switch for switch load inductance and positive bus-bar wire or negative busbar wire connection status.
The beneficial effects of the utility model are:
(1) be provided with analog controller, can catch more really the real work situation of power cell in automotive motor controller, test result is accurate, can effectively avoid electronic devices and components or controller that the problem such as stray inductance is brought to damage, and extends the serviceable life of electronic devices and components and controller;
(2) can open the resistance of resistance or pass resistance break by adjustment, realize the optimization of power cell performance;
(3) test components such as oscillograph, high-voltage power supply and load inductance are integrated in dipulse test cabinet, do not need loaded down with trivial details testboard bay, be convenient to the mass test of dispatching from the factory of mass production;
(4) be provided with the load inductance double throw switch on dipulse test cabinet, when respectively top tube and down tube being tested, only need stir the load inductance double throw switch just can change the connection at load inductance two ends, without removing inductance, simple and quick, improve testing efficiency.
The accompanying drawing explanation
Fig. 1 be the utility model test U mutually on circuit structure diagram during pipe;
Fig. 2 is the circuit structure diagram of the utility model when test U manages down mutually;
The structural representation that Fig. 3 is the load inductance double throw switch;
Fig. 4 is current waveform and emphasis observation station in test;
Voltage waveform and emphasis observation station in Fig. 5 test.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
A kind of IGBT driver module dipulse proving installation, it comprises analog controller, oscillograph, high-voltage power supply and load inductance (L), oscillograph, high-voltage power supply and load inductance are integrated in dipulse test cabinet, analog controller inside is integrated with testing host (CPU), testing host connects power cell to be measured, testing host is responsible for producing pulse width modulating signal (PWM), controls opening and turn-offing of power cell to be measured, measures the phase of IGBT and controls phase line output corresponding signal.The positive bus-bar wire of the anodal connecting analog controller output of high-voltage power supply, the negative busbar wire of negative pole connecting analog controller output.
As shown in Figure 1, when test U above manages (UT) mutually, oscillographic voltage tester end is by positive bus-bar wire and the U/V/W phase extension line of the output of voltage probe connecting analog controller, and oscillographic testing current end is by the negative busbar wire of current probe connecting analog controller output.One end of load inductance is by the U phase extension line of p-wire connecting analog controller output, and the other end is by the negative busbar wire of p-wire connecting analog controller output;
As shown in Figure 2, when test U manages (UB) down mutually, oscillographic voltage tester end connects the negative busbar wire of U phase extension line and analog controller output by voltage probe, oscillographic testing current end is by the positive bus-bar wire of current probe connecting analog controller output.One end of load inductance is by the U phase extension line of p-wire connecting analog controller output, and the other end is by the positive bus-bar wire of p-wire connecting analog controller output.
Similarly, by the similar connection of circuit structure diagram shown in above-mentioned, can treat V phase (UT, UB) and the W phase (WT, WB) of power scale unit and be tested respectively,, when test V phase time, connect V phase extension line, when test W phase time, connection W phase extension line.
Described voltage probe is High Pressure Difference component voltage probe, and current probe is the Luo-coil current probe.
Described phase phase extension line comprises U phase extension line, V phase extension line and W phase extension line, and described bus wire comprises positive bus-bar wire and negative busbar wire.
Described dipulse test cabinet is provided with the load inductance double throw switch, and as shown in Figure 3, an end of load inductance connects U/V/W phase extension line, and the other end is connected by load inductance double throw switch switch load inductance and positive bus-bar wire or negative busbar wire.
Further illustrate the specific implementation process of the utility model when test U manages (UB) down mutually below in conjunction with Fig. 2, comprise the steps:
(1) power cell to be measured is packed in analog controller;
(2), according to connection line shown in Fig. 2, UT diode phase and UB phase IGBT are measurands;
(3) testing host is exported double pulse width modulating signal power ratio control unit and is turned on and off for twice, and measures the U phase of IGBT, controls U phase extension line and exports corresponding signal;
(4) oscilloscope display test data and waveform;
(5) according to test data and the waveform of oscilloscope display, assess the performance of IGBT and drive plate in power cell to be measured, treat the power scale unit simultaneously and revised.
(6) test finishes.
While opening for the second time, in the reverse recovery current of diode and turn off process, the wave form varies of Vce need to be paid close attention to.While opening for the second time, stray inductance and diode reverse recovery current act on mutually, can make diode produce a due to voltage spikes, and now the instantaneous power of diode reaches maximum, the most dangerous moment of diode namely, as shown in Figure 4, Figure 5.The resistance of resistance R gon is opened in adjustment can adjust the slope of reverse recovery current, thereby reach, reduces the diode instantaneous power, the protection diode.In turn off process, the due to voltage spikes of Vce is the product of stray inductance and di/dt, can assess the safe coefficient of IGBT from due to voltage spikes, can regulate accordingly suitable shutoff resistance R goff.And this spike is than high a lot of when working when short circuit, active clamp circuit can be to this effective inhibition.
Claims (6)
1. an IGBT driver module dipulse proving installation, it is characterized in that: it comprises analog controller, oscillograph, high-voltage power supply and load inductance, oscillograph, high-voltage power supply and load inductance are integrated in dipulse test cabinet, analog controller inside is integrated with testing host, and testing host connects power cell to be measured; The positive bus-bar wire of the anodal connecting analog controller output of high-voltage power supply, the negative busbar wire of negative pole connecting analog controller output;
Oscillographic voltage tester end is by bus wire and the phase line extension line of the output of voltage probe connecting analog controller, and oscillographic testing current end is by the bus wire of current probe connecting analog controller output; One end of load inductance is by the phase line extension line of p-wire connecting analog controller output, and the other end is by the bus wire of p-wire connecting analog controller output.
2. a kind of IGBT driver module dipulse proving installation according to claim 1 is characterized in that: described voltage probe is High Pressure Difference component voltage probe, and current probe is the Luo-coil current probe.
3. a kind of IGBT driver module dipulse proving installation according to claim 1, it is characterized in that: described phase line extension line comprises U phase extension line, V phase extension line and W phase extension line, and described bus wire comprises positive bus-bar wire and negative busbar wire.
4. a kind of IGBT driver module dipulse proving installation according to claim 1, it is characterized in that: described oscillograph comprised with being connected of analog controller:
(1) when test U/V/W above manages mutually, oscillographic voltage tester end is by positive bus-bar wire and the U/V/W phase extension line of the output of voltage probe connecting analog controller, and oscillographic testing current end is by the negative busbar wire of current probe connecting analog controller output;
(2) when test U/V/W manages down mutually, oscillographic voltage tester end connects the negative busbar wire of U/V/W phase extension line and analog controller output by voltage probe, oscillographic testing current end is by the positive bus-bar wire of current probe connecting analog controller output.
5. a kind of IGBT driver module dipulse proving installation according to claim 1, it is characterized in that: described load inductance comprised with being connected of analog controller:
(1) when test U/V/W above manages mutually, the U/V/W phase extension line that an end of load inductance is exported by p-wire connecting analog controller, the negative busbar wire that the other end is exported by p-wire connecting analog controller;
(2) as test U/V/W mutually during lower pipe, an end of load inductance is by the U/V/W phase extension line of p-wire connecting analog controller output, and the other end is by the positive bus-bar wire of p-wire connecting analog controller output.
6. a kind of IGBT driver module dipulse proving installation according to claim 1 is characterized in that: described dipulse test cabinet is provided with the load inductance double throw switch for switch load inductance and positive bus-bar wire or negative busbar wire connection status.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320463704 CN203350407U (en) | 2013-07-31 | 2013-07-31 | IGBT driving module double-pulse testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320463704 CN203350407U (en) | 2013-07-31 | 2013-07-31 | IGBT driving module double-pulse testing device |
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| CN203350407U true CN203350407U (en) | 2013-12-18 |
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| CN 201320463704 Expired - Fee Related CN203350407U (en) | 2013-07-31 | 2013-07-31 | IGBT driving module double-pulse testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337596A (en) * | 2014-06-27 | 2016-02-17 | 西门子公司 | Motor system IGBT switching circuit thereof |
| CN105487529A (en) * | 2016-01-25 | 2016-04-13 | 南京越博新能源汽车科技有限公司 | Portable load box for detecting controller of battery electric vehicle |
| CN105676097A (en) * | 2015-12-31 | 2016-06-15 | 清华大学苏州汽车研究院（吴江） | Motor controller MOS transistor test platform and method based on double pulse test |
-
2013
- 2013-07-31 CN CN 201320463704 patent/CN203350407U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337596A (en) * | 2014-06-27 | 2016-02-17 | 西门子公司 | Motor system IGBT switching circuit thereof |
| CN105676097A (en) * | 2015-12-31 | 2016-06-15 | 清华大学苏州汽车研究院（吴江） | Motor controller MOS transistor test platform and method based on double pulse test |
| CN105487529A (en) * | 2016-01-25 | 2016-04-13 | 南京越博新能源汽车科技有限公司 | Portable load box for detecting controller of battery electric vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161027 Address after: 614000 Yingbin Road 9, hi tech Zone, Sichuan, Leshan Patentee after: Dongfang Electric (Leshan) new energy equipment Co., Ltd. Address before: Gou Zhen Qiao Qiao Gou Wutongqiao District Street 614802 Sichuan city of Leshan Province Patentee before: DEC Dongfeng Electric Machinery Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20190731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |