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Experimental validation of linear damage superposition for IBGT power modules under high and low temperature stress cycles

Abstract

This paper presents results from experimental tests intended to assess the validity of linear damage superposition using Miner’s rule for IGBT power modules. Such validity is crucial, for example, when applying Miner's rule in combination with power cycling lifetime models for estimating converter design lifetime. The linear combination of damage is debated, and, hence, it is important to test the validity of calculating the accumulated damages of IGBT power modules subjected to a mix of high-and low-temperature stress cycles. In total, seven power cycling experiments with commercial modules forms the basis for the assessment, involving test runs with constant stress conditions, as well as with mixed stress conditions. The analysis of the results indicates that the Miner’s rule predictions are in line with the lifetime obtained experimentally for mixed stress conditions. © VDE VERLAG GMBH · Berlin · Offenbach.

Category

Academic chapter/article/Conference paper

Client

  • Research Council of Norway (RCN) / 244010

Language

English

Author(s)

Affiliation

  • SINTEF Energy Research / Energisystemer
  • Norwegian University of Science and Technology

Year

2021

Publisher

VDE Verlag GmbH

Book

PCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

ISBN

978-3-8007-5515-8

Page(s)

1202 - 1207

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