Online Vce measurement method for wear-out monitoring of high power IGBT modules

Szymon Beczkowski, Pramod Ghimire, Angel Ruiz de Vega, Stig Munk-Nielsen, Bjørn Rannestad, Paul Thøgersen

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Abstract

A simple Vce online monitoring circuit is presented in this paper. It allows an accurate wear out prediction of IGBT modules, in high-power applications, during normal converter operation. Bipolar measurement allows monitoring of both IGBT and antiparallel diode. The circuit uses two serial connected diodes to sense the Vce voltage with millivolt accuracy. One diode acts as a protection to block high DC voltage present on input terminals. When the device is conducting the voltage on the second diode is measured to compensate for the voltage drop on the protection diode thus eliminating voltage offset due to diodes' forward voltage temperature dependency. Using four diodes one can monitor voltages on all power devices in a converter leg.
OriginalsprogEngelsk
TitelProceedings of the 15th European Conference on Power Electronics and Applications, EPE 2013
Antal sider7
ForlagIEEE Press
Publikationsdato2013
ISBN (Trykt)9781479901159
ISBN (Elektronisk)9781479901142, 978-147990116-6
DOI
StatusUdgivet - 2013
BegivenhedEPE'13 ECCE Europe 15th European Conference on Power Electronics and Applications - Lille, Frankrig
Varighed: 3 sep. 20135 sep. 2013
http://www.epe2013.com/

Konference

KonferenceEPE'13 ECCE Europe 15th European Conference on Power Electronics and Applications
Land/OmrådeFrankrig
ByLille
Periode03/09/201305/09/2013
Internetadresse

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