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Influence of Inverse Coupled Inductors on Fault-Tolerant Operation of Two-Phase DC-DC Converters

Title data

Gleißner, Michael ; Bakran, Mark-M.:
Influence of Inverse Coupled Inductors on Fault-Tolerant Operation of Two-Phase DC-DC Converters.
2015
Event: 17th Conference on Power Electronics and Applications. EPE’15-ECCE Europe , 08.-10.09.2015 , Genf, Schweiz.
(Conference item: Conference , Poster )

Official URL: Volltext

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Abstract in another language

Multiphase DC-DC converters with coupled inductors are applied to increase the power density and efficiency. But coupling also creates an interference between still active and failed phases as well as influences the inductance characteristic. This paper investigates the fault-tolerance of multiphase DCDC converters with focus on the behaviour of the total as well as phase current ripples and the inductor saturation depending on duty cycle and coupling coefficient.
Compared to non-coupled inductors, the total current ripple can be kept similar after loss of a converterphase if no saturation occurs. Moreover, the influence of the induced voltage due to coupling on the deactivated phase is analysed. Design hints for fault-tolerant strategies with coupled inductors are presented. Measurement results with various coupled inductors prove the theoretical considerations.

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 > Emerging Fields > Energy Research and Energy Technology
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Mechatronics
Profile Fields
Profile Fields > Emerging Fields
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 12 Oct 2015 07:25
Last Modified: 06 Nov 2015 08:33
URI: https://eref.uni-bayreuth.de/id/eprint/20181