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Denk, Marco ; Bakran, Mark-M.:
Health-Monitoring of IGBT Power Modules using repetitive Half-sinusoidal Power Losses.
2016
Veranstaltung: PCIM Europe 2016
, 10.-12.05.2016
, Nürnberg.
(Veranstaltungsbeitrag: Kongress/Konferenz/Symposium/Tagung
,
Poster
)
Abstract
n view of ever-increasing power densities and harsh operating conditions manufacturers of power electronic systems are demanding concepts to monitor the ageing process of IGBT power modules in the field. This paper presents a diagnostic concept to identify the thermal resistance from chip to substrate and to monitor its increase due to the gradual delamination of the IGBT chip-solder. For this purpose the IGBTs are operated with repetitive half-sinusoidal power losses and a modified gate driver measures the amplitude ∆TJ and the minimum temperature TJ,Min of the resulting junction temperature cycles. The focus of this paper is on the implementation of the diagnostic concept within a voltage source inverter of a hybrid transmission. It describes an inverter control strategy to realize the periodic heating current in a regular operating point and without generating any drive torque. Moreover, the additional increase of the temperature cycle amplitude ∆TJ due to the increased power losses at higher minimum cycle temperatures TJ,Min is investigated. The diagnostic concept is tested with artificially aged power modules and enables a very robust and selective identification of a delaminated chip-solder and a contaminated cooling system with little implementation effort.
Weitere Angaben
| Publikationsform: | Veranstaltungsbeitrag (Poster) |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mechatronik > Lehrstuhl Mechatronik - Univ.-Prof. Dr.-Ing. Mark-M. Bakran Profilfelder > Advanced Fields > Neue Materialien Profilfelder > Emerging Fields > Energieforschung und Energietechnologie Forschungseinrichtungen > Forschungsstellen > ZET - Zentrum für Energietechnik Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mechatronik Profilfelder Profilfelder > Advanced Fields Profilfelder > Emerging Fields Forschungseinrichtungen Forschungseinrichtungen > Forschungsstellen |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 19 Mai 2016 11:17 |
| Letzte Änderung: | 20 Jan 2023 08:41 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/32405 |