at Google ScholarTitle data
Denk, Marco ; Bakran, Mark-M.:
Health-Monitoring of IGBT Power Modules using repetitive Half-sinusoidal Power Losses.
2016
Event: PCIM Europe 2016
, 10.-12.05.2016
, Nürnberg.
(Conference item: Conference
,
Poster
)
Abstract in another language
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.
Further data
| Item Type: | Conference item (Poster) |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Chair Mechatronics > Chair Mechatronics - Univ.-Prof. Dr.-Ing. Mark-M. Bakran Profile Fields > Advanced Fields > Advanced Materials Profile Fields > Emerging Fields > Energy Research and Energy Technology Research Institutions > Research Units > ZET - Zentrum für Energietechnik Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Mechatronics Profile Fields Profile Fields > Advanced Fields Profile Fields > Emerging Fields Research Institutions Research Institutions > Research Units |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 19 May 2016 11:17 |
| Last Modified: | 20 Jan 2023 08:41 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/32405 |