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Health-Monitoring of IGBT Power Modules using repetitive Half-sinusoidal Power Losses

Titelangaben

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