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A kind of online test method of high-power igbt module

An online testing, high-power technology, applied in bipolar transistor testing, single semiconductor device testing, etc., can solve problems such as incomplete test data, inability to obtain device dynamic performance parameters and limit parameters, etc.

Active Publication Date: 2020-11-17
ZHEJIANG EIFESUN ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing inspections only focus on device-level simulation tests, and the test data is not complete enough to obtain dynamic performance parameters and limit parameters of various types of devices under different working conditions, which is not conducive to providing reference for device selection and optimal design of converters in accordance with

Method used

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  • A kind of online test method of high-power igbt module
  • A kind of online test method of high-power igbt module
  • A kind of online test method of high-power igbt module

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Embodiment Construction

[0042] The present invention will be described in further detail below in conjunction with the embodiments given in the accompanying drawings.

[0043] refer to figure 1 and figure 2As shown, the specific implementation of this embodiment testing machine load current control algorithm is as follows: using a PR (proportional resonance) controller in the abc three-phase static coordinate system or αβ two-phase static coordinate system can achieve direct sinusoidal current at a specific frequency No static error control, considering that the online test system requires an adjustable frequency of 25-200Hz, the frequency of the PR controller other than the resonance frequency will cause oscillation and lead to control divergence and out of control. Therefore, in order to realize the control of variable frequency sinusoidal AC current without static error, the abc-dq coordinate transformation is used In the dq synchronous rotating coordinate system, the PI (proportional integral...

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Abstract

The invention discloses an online testing method for a high-power IGBT module. Advantages of the present invention: based on the three-phase bridge inverter circuit, the present invention designs a test method capable of testing dynamic parameters and limit parameters of high-power IGBT modules. System-level and device-level testing combined. Complete corresponding tests by setting switching frequency, modulation mode, gate drive, and different operating temperature, bus voltage, load current and other actual working conditions to obtain dynamic performance parameters and limit parameters of various types of devices under different working conditions and record test results , to provide a reference for the converter to IGBT device selection and optimal design.

Description

technical field [0001] The present invention relates to the field of IGBT testing systems, and more specifically relates to an online testing method for high-power IGBT modules. Background technique [0002] High-power IGBT modules have been widely used in the field of converters, and their dynamic performance parameters and limit parameters (including device switching loss, continuous overload capacity, instantaneous overload capacity, continuous over-temperature capacity, etc.) are important factors that affect the safe operation of devices. factor. These relevant performance parameters depend on the data sheet provided by the device manufacturer, but the extraction environment of these data is the standard environment, which is not consistent with the actual working conditions, resulting in a deviation between the actual application effect of the device and the design. Therefore, it is necessary to proceed from practical applications and obtain IGBT related performance p...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/26
CPCG01R31/2608
Inventor 胡浙东李赟
Owner ZHEJIANG EIFESUN ENERGY TECH