Case Sensitive Condition Monitoring of an IGBT Inverter in a Hybrid Car

Title data

Denk, Marco ; Bakran, Mark-M. ; Schafferhans, Stephan:
Case Sensitive Condition Monitoring of an IGBT Inverter in a Hybrid Car.
In: CIPS 2016, 9th International Conference on Integrated Power Electronics Systems. - Berlin : VDE Verlag , 2016 . - 6 S.
ISBN 978-3-8007-4171-7

Official URL:

Abstract in another language

In view of ever-increasing power densities of voltage source inverters the implementation of condition monitoring functions will gain greater importance. This paper presents a concept to determine the health state of the IGBT power module and the cooling-system within a short diagnosis phase. For a short time, the IGBTs are heated with repetitive half-sinusoidal, low-frequency power losses. After thermal equilibrium is reached the amplitude and the minimum value of the temperature cycles are measured and averaged across several periods. An increased cycle amplitude indicates a degraded chip- or system-solder. If the minimum cycle temperature increases a contamination of the cooling system is identified. It is shown that the half-sinusoidal excitation of the power module solves the timing and accuracy problem of today’s health-monitoring systems and has great potential to be implemented in a real voltage source inverter.

Further data

Item Type:	Article in a book
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 Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Mechatronics Profile Fields Profile Fields > Advanced Fields Profile Fields > Emerging Fields
Result of work at the UBT:	Yes
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited:	24 Mar 2016 08:18
Last Modified:	20 Jan 2023 08:42
URI:	https://eref.uni-bayreuth.de/id/eprint/32029