NDLI: Impact of Stator Winding of a Five-Phase Permanent-Magnet Motor on Postfault Operations

Content Provider	IEEE Xplore Digital Library
Author	Bianchi, N. Bolognani, S. Pre, M.D.
Copyright Year	1982
Abstract	The performance of a five-phase permanent-magnet (PM) motor is analyzed under postfault conditions. Proper current control strategies are adopted so as to guarantee safe drive operation after any fault occurrence. This paper covers three fault types: the open circuit condition of a single phase, the open circuit condition of two nonadjacent phases, and the open circuit condition of two adjacent phases. Two motors with two different windings (with double and single layers, respectively) are compared under each fault type. This paper aims to highlight the difference in the motor performance of motors adopting these two different windings. A further novelty of this paper is that the proper current control strategies are derived analytically, including not only the fundamental harmonic of the flux-density distribution but also the higher harmonics. It is shown that these harmonics cause high torque oscillations. Owing to this analytical approach, the strategy can be applied to a variety of PM motors. In addition, the postfault current waveforms remain sinusoidal, making the current control easier. For each fault type, the results of both simulations and experimental tests are included. A good match between analytical predictions and experimental tests validates the proposed current control strategies.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	1978
Ending Page	1987
Page Count	10
File Size	512460
File Format	PDF
ISSN	02780046
Volume Number	55
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stator windings Permanent magnet motors AC motors Circuit faults Fault tolerance Current control Torque Motor drives Switches Testing variable speed drives AC motor drives fault-tolerant machines multiphase machines permanent-magnet (PM) motors Variable speed drives Fault tolerant machines Multiphase machines PM motors
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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