A new fault-tolerant flux-reversal doubly-salient magnetless motor drive with four-phase topology

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20162402483444
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(1) Shenzhen Institute of Research and Innovation, University of Hong Kong, Shenzhen, China; (2) Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong | 1600年 / IEEE Industrial Electonics Society (IES)卷 / Institute of Electrical and Electronics Engineers Inc., United States期
关键词：
The proposed fault-tolerant flux-reversal doubly-salient (FT-FRDS) magnetless motor drive consists of armature winding for driving and DC-field winding for field excitation. The purpose of this paper is to investigate two remedial strategies for fault-tolerant operations of the proposed motor drive under short-circuit faults. First; short-circuit phase can be disabled and the short-circuit fault can then be regarded as the open-circuit fault. By reconstructing the healthy armature phases; the reduced torque can be remedied and this is known as the fault-tolerant brushless AC (FT-BLAC) operations. Second; short-circuit fault can also be remedied based on the DC-field regulation alone; and this is known as the fault-tolerant DC-field (FT-DC) operation. These two remedial operations are compared and verified by the finite-element-method (FEM). © 2015 IEEE;
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