An online Vce measurement and temperature estimation method for high power IGBT module in normal PWM operation

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

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22 Citationer (Scopus)

Abstract

An on-state collector-emitter voltage (Vce) measurement and thereby an estimation of average temperature in space for high power IGBT module is presented while power converter is in operation. The proposed measurement circuit is able to measure both high and low side IGBT and anti parallel diode voltages for a half bridge module which are also used to monitor the electrical degradation of the module. The Vce load current is proposed to estimate the variation of average temperature in space at every fundamental cycle of sinusoidal loading current. Initially, the calibration of voltage and junction temperature for load current level is presented and a trend of change in calibration factor for the IGBT is presented. Finally, the variation in temperature for sinusoidal variation of current is presented at initial stage and after an ageing of the IGBT. The measurement technique is simple and easy to implement into a gate driver for field applications.
OriginalsprogEngelsk
TitelProceedings of the International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA)
Antal sider6
ForlagIEEE Press
Publikationsdato2014
Sider2850-2855
ISBN (Trykt)9781479927067
ISBN (Elektronisk)9781479927043
DOI
StatusUdgivet - 2014
Begivenhed2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA) - Hiroshima, Japan
Varighed: 18 maj 201421 maj 2014

Konference

Konference2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA)
Land/OmrådeJapan
ByHiroshima
Periode18/05/201421/05/2014
NavnInternational Conference on Power Electronics
ISSN2150-6078

Emneord

  • Real time monitoring
  • Reliability
  • IGBT power module
  • Junction temperature

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