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Decoupling capacitance selecting and over-voltage predicting for power converter system(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2016年05
Page:
14-22
Research Field:
Publishing date:

Info

Title:
Decoupling capacitance selecting and over-voltage predicting for power converter system
Author(s):
XIAO Fang GE Bao-jun TAO Da-jun
( School of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China)
Keywords:
insulated-gate bipolar transistor switching module conducted electromagnetic interference prediction over voltage decoupling capacitor parametric study
PACS:
TM 921
DOI:
10. 15938 / j. emc. 2016. 05. 003
Abstract:
Severe electromagnetic interference ( EMI) is generated due to the high on and off accompan-ying the high speed switching. A new frequency-domain modular modeling approach was proposed for pre-dicting conducted electromagnetic interference based on insulated-gate bipolar transistor ( IGBT) switching module in power converter system. The modular modeling approach can predict the electromagnetic interfer-ence noise accurately in a power converter for the entire conducted electromagnetic interference frequency range. Based on the model,the effect of decoupling capacitance was analyzed. The over-voltage was predic-ted by using the modular equivalent source model. The whole analysis was demonstrated how to select de-vice. The validity of the device selection was verified by simulation and experimental results at last.

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Last Update: 2016-06-26