Intelligent testing system of IGBT (Insulated Gate Bipolar Translator) and drive combined module and testing method thereof

Abstract

The invention relates to an intelligent testing system of an IGBT (Insulated Gate Bipolar Translator) and drive combined module and a testing method thereof; the intelligent testing system comprises a low-voltage programmable power supply, a high-voltage programmable power supply, a PC (personal computer), a DSP (Digital Signal Processor) test board, an IGBT and drive combined module test desk, an oscilloscope and a probe, wherein the low-voltage programmable power supply and the high-voltage programmable power supply are connected with the PC; the PC controls output voltage of the low-voltage programmable power supply and the high-voltage programmable power supply, and feeds output current back; the low-voltage programmable power supply is connected with the DSP test board; the DSP test board is connected with a first plug-in unit of the IGBT and drive combined module test desk; the high-voltage programmable power supply is connected with a second plug-in unit of the IGBT and drive combined module test desk; the probe of the oscilloscope is connected to a three-phase interface for detecting a three-phase output PWM (Pulse Width Modulation) waveform; and the oscilloscope is connected with the PC by a USB (Universal Serial Bus) interface for feeding acquired signals to the PC back.

Description

technical field [0001] The invention relates to the field of test systems for power electronic devices, in particular to an intelligent test system for an IGBT and drive combination module and a test method thereof. Background technique [0002] With the development of power electronics technology, frequency conversion speed control devices and inverters composed of IGBT modules have been widely used. The performance of the IGBT and drive combination module will directly affect the performance indicators of the frequency conversion speed control device and inverter, especially the production consistency and reliability. Therefore, in the process of producing frequency conversion speed regulating devices and inverters, how to detect whether the IGBT and drive combination module is good or bad and related performance has become a key process in production. At present, in the production process of frequency conversion speed control devices and inverters, there is no tooling eq...

AI Technical Summary

Problems solved by technology

At present, in the production process of frequency conversion speed control devices and inverters, there is no tooling equipment for rapid detection of IGBT and drive combination modules. Generally, a complete set of test equipment and test benches for development and testing are used, which are bulky and require a large investment. , the test cycle is long, there are many human test factors, and the efficiency is not high. It is only suitable for use in the development stage, not suitable for use in mass production.

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