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Turn-turn short circuit fault management in permanent magnet machines

Arumugam, Puvaneswaran; Hamiti, Tahar; Gerada, C.

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Puvaneswaran Arumugam

Tahar Hamiti


This paper presents a systematic study on turn-turn short circuit fault and ways to manage them to provide a basis for comparison of the various options available. The possible methods to reduce the likelihood of the winding SC fault and the fault mitigation techniques related to such faults are discussed. A Finite Element (FE) analysis of a surface-mount Permanent Magnet (PM) machine under application of different mitigation techniques during a turn-turn fault is presented. Both machine and drive structural adaptations for different fault mitigation techniques are addressed. Amongst the investigated fault mitigation techniques, the most promising solution is identified and validated experimentally. It is shown that the shorting terminal method adopting vertical winding arrangement is an effective method in terms of the implementation, reliability and weight.

Journal Article Type Article
Acceptance Date Jul 1, 2015
Online Publication Date Nov 1, 2015
Deposit Date Aug 31, 2016
Publicly Available Date Aug 31, 2016
Journal IET Electric Power Applications
Print ISSN 1751-8660
Electronic ISSN 1751-8679
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 9
Issue 9
Keywords Inter-turn, Short Circuit, Fault Tolerance, Fault Mitigation, PM Machine, Safety, Reliability
Public URL
Publisher URL
Additional Information This paper is a postprint of a paper submitted to and accepted for publication in IET Electric Power Applications and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.


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