CN209542770U - IGBT power module dipulse automatically testing platform - Google Patents
IGBT power module dipulse automatically testing platform Download PDFInfo
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- CN209542770U CN209542770U CN201822105626.5U CN201822105626U CN209542770U CN 209542770 U CN209542770 U CN 209542770U CN 201822105626 U CN201822105626 U CN 201822105626U CN 209542770 U CN209542770 U CN 209542770U
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- power module
- igbt power
- dipulse
- plc
- voltage sensor
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Abstract
The utility model discloses a kind of IGBT power module dipulse automatically testing platforms, including PLC, touch screen, oscillograph, load inductance, DC power supply AC/DC, voltage sensor, discharge resistance and dipulse driving circuit, PLC is separately connected touch screen and DC power supply AC/DC, DC power supply AC/DC is separately connected discharge resistance and voltage sensor, discharge resistance ground connection, voltage sensor is separately connected tested IGBT power module and PLC, voltage sensor also connects tested IGBT power module by load inductance, PLC also passes through dipulse driving circuit and connects tested IGBT power module, oscillograph connects tested IGBT power module.The utility model can be by effectively connecting cooperation for the equipment of test platform, it can in high precision, expeditiously test tested IGBT power module, the related data obtained to test is analyzed, and can effectively determine whether the IGBT power module meets requirement.
Description
Technical field
The utility model belongs to the technical field of power module test platform, double more particularly, to a kind of IGBT power module
Pulse automatically testing platform.
Background technique
Currently, wind-power market competition is very fierce, each major company increases the investment to current transformer research and development, and product renewing changes
In generation, is more frequent.Each company equally increases the investment to current transformer research and development to keep the occupation rate of wind-power market.In unsteady flow
It in device R&D process, needs to test product, whether verifying product matches with design scheme.For the test item of product
It is more, including product systems test, EMC test, environmental test test, white-box testing and IGBT power module test.Wherein,
IGBT(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) power module is current transformer
Core component is the main devices for realizing ac-dc conversion, is the important test object in system whitepack, needs to put into more money
Source is tested.
Utility model content
The utility model be solve low efficiency in high power module test, safety is low and data analysis is cumbersome etc. asks
Topic, and a kind of IGBT power module dipulse automatically testing platform is provided.
The utility model is adopted the technical scheme that solve the technical problems existing in the prior art:
The IGBT power module dipulse automatically testing platform of the utility model, including PLC, touch screen, oscillograph, load
Inductance, DC power supply AC/DC, voltage sensor, discharge resistance and dipulse driving circuit, PLC are separately connected touch screen and straight
Galvanic electricity source AC/DC, DC power supply AC/DC are separately connected discharge resistance and voltage sensor, discharge resistance ground connection, voltage sensor
It is separately connected tested IGBT power module and PLC, voltage sensor also connects tested IGBT power module by load inductance,
PLC also passes through dipulse driving circuit and connects tested IGBT power module, and oscillograph connects tested IGBT power module.
First contactor is provided between the DC power supply AC/DC and voltage sensor, PLC control connection first connects
Tentaculum.
Second contactor, PLC control connection second contactor are provided between the first contactor and discharge resistance.
The PLC passes through RS485 communication cable connection DC power supply AC/DC and dipulse driving circuit respectively.
The dipulse driving circuit connects tested IGBT power module by fiber optic cables.
The utility model has the advantages and positive effects of:
It is dynamic that the dipulse automatically testing platform of the utility model can measure it to IGBT power module progress dependence test
State flows, Current for paralleled and itself stray inductance of power module etc., by the way that the equipment of test platform is effectively connected cooperation,
Tested IGBT power module can in high precision, be expeditiously tested, the related data obtained to test is analyzed, can be effective
Ground determines whether the IGBT power module meets requirement.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model；
Fig. 2 is the flow diagram of the utility model.
Specific embodiment
Referring to the drawings and the utility model is described in detail in embodiment.
As shown in Figure 1, the IGBT power module dipulse automatically testing platform of the utility model, including PLC, touch screen,
Oscillograph, load inductance, DC power supply AC/DC, voltage sensor, discharge resistance and dipulse driving circuit, PLC are separately connected
Touch screen and DC power supply AC/DC, DC power supply AC/DC are separately connected discharge resistance and voltage sensor, and discharge resistance is grounded,
Voltage sensor is separately connected tested IGBT power module and PLC, and voltage sensor also connects tested IGBT by load inductance
Power module, PLC also pass through dipulse driving circuit and connect tested IGBT power module, and oscillograph connects tested IGBT power mould
Block.
First contactor is provided between the DC power supply AC/DC and voltage sensor, PLC control connection first connects
Tentaculum.
Second contactor, PLC control connection second contactor are provided between the first contactor and discharge resistance.
The PLC passes through RS485 communication cable connection DC power supply AC/DC and dipulse driving circuit respectively.
The dipulse driving circuit connects tested IGBT power module by fiber optic cables.
As shown in Fig. 2, the IGBT power module dipulse automatic test approach of the utility model, the specific steps are as follows:
Firstly, configuration oscillograph and load inductance, open test platform power supply, dipulse driving electricity is configured by touch screen
T1, T2, T3 numerical value and IGBT power module test voltage Vdc numerical value on road；
Secondly, voltage sensor detects the voltage of tested IGBT power module, and the tested IGBT power module that will test
Voltage is sent to PLC, and when the tested IGBT power module voltage of detection is more than or equal to 5V, PLC controls second contactor closure,
Discharge resistance discharges, until disconnecting second contactor when the tested IGBT power module voltage of detection is less than 5V；
Again, PLC controls first contactor closure, and PLC controls DC power supply AC/DC and carries out to tested IGBT power module
Charging, voltage sensor detects charging voltage, and the charging voltage that will test is sent to PLC, the charging voltage of PLC judgement detection
Whether the Vdc numerical value of setting is reached, if then PLC controls first contactor and disconnects, if otherwise voltage sensor detects fill again
Piezoelectric voltage, and the charging voltage that will test is sent to PLC, until the charging voltage of detection reaches the Vdc numerical value of setting；
Then, PLC passes through T1, T2, T3 numerical value the triggering dipulse driving circuit configured and sends out to tested IGBT power module
Send pulse, oscillograph detects the Wave data of tested IGBT power module, and PLC controls second contactor closure, discharge resistance into
Row electric discharge, analyzes waveform data.
The circuit logic of the PLC control test platform of the utility model, by T1, T2, T3 numerical value of dipulse driving circuit
Dialog box on the touchscreen is set with IGBT power module test voltage Vdc numerical value, and realizes automatic control.
It in dipulse test process, needs to set the numerical value such as dipulse time T1, T2, T3 and Vdc, needs to touch by it
Send out start command etc..
When testing power module, need to charge to tested IGBT power module and establish tested IGBT power mould
The test voltage Vdc of block, needs to connect DC power supply AC/DC, which needs to have in 0-3000V internal pressure-regulating, and
It is communicated, can be charged to power module with PLC.
Load inductance is air core inductor, according to formulaThe upper raising speed of load inductance L decision collector current Ic
Degree, inductance value required for the tested IGBT power module of different voltages grade different model is tested are also different.
1 load inductance value of table
After the completion of dipulse test, dc-link capacitance busbar voltage fluctuation is smaller, and voltage value is still 1000V or so, needs
The discharge resistance of one 20 Ω to be installed at bus capacitor both ends, the on-off of the discharge resistance is controlled by contactor.
The pulse for the T1 and T3 time that dipulse is spaced the T2 time by two forms, and T1 ~ T3 needs are adjustable, in addition the time
For section within 0 ~ 50us, relative time is shorter, otherwise will affect measure data precision.
After the completion of dipulse test, related data can be analyzed according to the Wave data on oscillograph.
There are certain danger in the test process of IGBT power module, in order to prevent trouble before it happens, install in test platform
Voltage sensor detects charging voltage, controls first contactor by using PLC to control DC power supply AC/DC and IGBT power
The circuit switching of module, is tested automatically.Therefore in testing, after should first setting oscillograph and test relevant parameter, from
Dynamic triggering test after the completion of to be triggered, after module automatic discharging, analyzes data.
The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model
Embodiment should not be considered as limiting the scope of the present invention.It is made according to the scope of application of this utility model equal
Deng variation and improvement etc., should still belong within the patent covering scope of the utility model.
Claims (5)
1. a kind of IGBT power module dipulse automatically testing platform, it is characterised in that: including PLC, touch screen, oscillograph, bear
Carry inductance, DC power supply AC/DC, voltage sensor, discharge resistance and dipulse driving circuit, PLC be separately connected touch screen and
DC power supply AC/DC, DC power supply AC/DC are separately connected discharge resistance and voltage sensor, discharge resistance ground connection, voltage sensor
Device is separately connected tested IGBT power module and PLC, and voltage sensor also connects tested IGBT power module by load inductance,
PLC also passes through dipulse driving circuit and connects tested IGBT power module, and oscillograph connects tested IGBT power module.
2. IGBT power module dipulse automatically testing platform according to claim 1, it is characterised in that: the direct current
First contactor, PLC control connection first contactor are provided between power supply AC/DC and voltage sensor.
3. IGBT power module dipulse automatically testing platform according to claim 2, it is characterised in that: described first
Second contactor, PLC control connection second contactor are provided between contactor and discharge resistance.
4. IGBT power module dipulse automatically testing platform according to claim 1, it is characterised in that: the PLC
DC power supply AC/DC and dipulse driving circuit are connected by RS485 communication cable respectively.
5. IGBT power module dipulse automatically testing platform according to claim 1, it is characterised in that: double arteries and veins
It rushes driving circuit and connects tested IGBT power module by fiber optic cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822105626.5U CN209542770U (en) | 2018-12-14 | 2018-12-14 | IGBT power module dipulse automatically testing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822105626.5U CN209542770U (en) | 2018-12-14 | 2018-12-14 | IGBT power module dipulse automatically testing platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209542770U true CN209542770U (en) | 2019-10-25 |
Family
ID=68264314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822105626.5U Active CN209542770U (en) | 2018-12-14 | 2018-12-14 | IGBT power module dipulse automatically testing platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN209542770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780185A (en) * | 2019-10-31 | 2020-02-11 | 华北电力大学 | Parallel current sharing test platform and method and metal electrode assembly |
| CN110850208A (en) * | 2019-11-15 | 2020-02-28 | 浙江大学 | Laminated busbar stray parameter extraction method based on SiC MOSFET frequency characteristics |
-
2018
- 2018-12-14 CN CN201822105626.5U patent/CN209542770U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780185A (en) * | 2019-10-31 | 2020-02-11 | 华北电力大学 | Parallel current sharing test platform and method and metal electrode assembly |
| CN110850208A (en) * | 2019-11-15 | 2020-02-28 | 浙江大学 | Laminated busbar stray parameter extraction method based on SiC MOSFET frequency characteristics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210918 Address after: 300308 No. 100, Hangtian Road, Tianjin pilot free trade zone (Airport Economic Zone), Binhai New Area, Tianjin Patentee after: TIANJIN RUIYUAN ELECTRICAL Co.,Ltd. Address before: No.1 Xinghua No.7 Branch Road, economic development zone, Xiqing District, Tianjin Patentee before: RENERGY ELECTRIC TIANJIN Ltd. |
|
| TR01 | Transfer of patent right |