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Analysis of Vertical Strip Wound Fault-Tolerant Permanent Magnet Synchronous Machines

Arumugam, Puvaneswaran; Hamiti, Tahar; Brunson, Christopher; Gerada, Chris

Analysis of Vertical Strip Wound Fault-Tolerant Permanent Magnet Synchronous Machines Thumbnail


Puvaneswaran Arumugam

Tahar Hamiti

Christopher Brunson


This paper investigates the behavior of a vector-controlled fault-tolerant permanent magnet motor drive system adopting a vertically placed strip winding (VSW) which can limit interturn short-circuit (SC) fault current to its rated value regardless of the position in the slot containing the shorted turns. The drives' dynamic behavior is simulated using a per-phase equivalent circuit model, with the winding inductances and resistances analytically calculated based on the machine geometry and fault location. A simplified thermal model is also grafted into the system model to effectively simulate the dynamic behavior of the machine during healthy interturn SC fault and postfault controlled scenarios. The SC-fault-current-limiting capability, the additional losses, and the thermal behavior of the winding are studied and compared with conventional winding adopting round conductor winding. The proposed winding design is verified with finite-element analysis and is then validated experimentally. Results show that the VSW inherently limits the SC current, reduces its dependence on the position of the fault within the slot, but results in an increase in ac losses. © 1982-2012 IEEE.

Journal Article Type Article
Acceptance Date Apr 15, 2013
Online Publication Date Apr 24, 2013
Publication Date 2014-03
Deposit Date Aug 31, 2016
Publicly Available Date Aug 31, 2016
Journal IEEE Transactions on Industrial Electronics
Print ISSN 0278-0046
Electronic ISSN 1557-9948
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 61
Issue 3
Pages 1158-1168
Keywords Copper Loss, Concentrated Windings, Fault-tolerant, Permanent Magnet, Short-circuit, Slot-leakage
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Additional Information c2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.


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