NDLI: Analysis of New Modular Linear Flux Reversal Permanent Magnet Motors

Content Provider	IEEE Xplore Digital Library
Author	Liang Xu Guohai Liu Wenxiang Zhao Jinghua Ji Zhijian Ling
Copyright Year	1965
Abstract	In this paper, a new modular linear flux reversal permanent magnet (M-LFRPM) motor is proposed and analyzed. The key of the proposed motor is to adopt a new modular mover structure, hence offering the desired fault-tolerant capability and an improved force performance. Utilizing the new modular mover structure, the magnet utilization ratio of the proposed motor is significantly enhanced as compared with the existing one, resulting in a higher thrust force density. Moreover, the back electromotive force of the proposed motor is symmetrical and sinusoidal due to its complementary PM magnetic circuits. For a fair comparison, the proposed motor is designed and built based on an existing M-LFRPM motor with the similar electromagnetic and geometrical parameters. Then, their force ripples are analyzed and decomposed using the frozen permeability method due to its high accuracy for force separation, revealing that the cogging and reluctance force ripples of the proposed motor counteract each other and are significantly reduced. Finally, the electromagnetic performance of both the motors is analyzed and compared using the time-stepping finite-element method, verifying that the proposed motor definitely offers the desired fault-tolerant capability and the improved force performance viz., the reduced cogging force and the improved thrust force compared with the existing one.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	4
Page Count	4
File Size	1922352
File Format	PDF
ISSN	00189464
Volume Number	51
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Force Permanent magnet motors Reluctance motors Brushless motors Forging Magnetic flux Couplings finite-element method Flux reversal motor permanent magnet motor linear motor permanent magnet (PM) motor Finite-element method flux reversal motor
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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