Transient modelling of loss and thermal dynamics in power semiconductor devices

Ke Ma, Yongheng Yang, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

25 Citations (Scopus)
494 Downloads (Pure)

Abstract

The dynamical behavior of temperature is becoming a critical design consideration for the power electronics, because they are referred as “thermal cycling” which is the root cause of fatigues in the power electronics devices, and thus is closely related to the reliability of the converter. It is well understood that the loading of power devices are disturbed by many factors of the converter system like grid, control, environment, etc., which emerge at various time-constants. However, the corresponding thermal response to these disturbances is still unclear, especially the transient behaviors until achieving the steady-state. As a result, a systematic modelling approach is proposed in this paper, which includes the large signal models of the converter system with both electrical and thermal parts, and the corresponding transient models under frequency domain are also extracted. Based on the proposed models, the bandwidths of the loss or thermal response to major disturbances in the converter system can be analytically mapped, enabling more advanced tools to investigate the transient characteristics of loss and thermal dynamics in the power electronics devices.
Original languageEnglish
Title of host publicationProceedings of the 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
Number of pages7
PublisherIEEE Press
Publication dateSept 2014
Pages5495-5501
ISBN (Print)9781479957774
ISBN (Electronic)9781479956982
DOIs
Publication statusPublished - Sept 2014
Event2014 IEEE Energy Conversion Congress and Exposition (ECCE) - Pittsburgh, Pittsburgh, United States
Duration: 14 Sept 201418 Sept 2014

Conference

Conference2014 IEEE Energy Conversion Congress and Exposition (ECCE)
LocationPittsburgh
Country/TerritoryUnited States
CityPittsburgh
Period14/09/201418/09/2014

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