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Fault-Tolerant Operation of Six-Phase Energy Conversion Systems With Parallel Machine-Side Converters

Gonzalez-Prieto, I and Duran, MJ and Che, HS and Levi, E and Bermudez, M and Barrero, F (2016) Fault-Tolerant Operation of Six-Phase Energy Conversion Systems With Parallel Machine-Side Converters. IEEE TRANSACTIONS ON POWER ELECTRONICS, 31 (4). pp. 3068-3079. ISSN 0885-8993

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Abstract

The fault tolerance provided by multiphase machines is one of the most attractive features for industry applications where a high degree of reliability is required. Aiming to take advantage of such postfault operating capability, some newly designed full-power energy conversion systems are selecting machines with more than three phases. Although the use of parallel converters is usual in high-power three-phase electrical drives, the fault tolerance of multiphase machines has been mainly considered with single supply from a multiphase converter. This study addresses the fault-tolerant capability of six-phase energy conversion systems supplied with parallel converters, deriving the current references and control strategy that need to be utilized to maximize torque/power production. Experimental results show that it is possible to increase the postfault rating of the system if some degree of imbalance in the current sharing between the two sets of threephase windings is permitted.

Item Type: Article
Additional Information: (c) 2016 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.
Uncontrolled Keywords: 0906 Electrical And Electronic Engineering
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: Electronics and Electrical Engineering
Publisher: IEEE
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Date Deposited: 11 Jan 2016 12:55
Last Modified: 06 Sep 2017 16:42
DOI or Identification number: 10.1109/TPEL.2015.2455595
URI: http://researchonline.ljmu.ac.uk/id/eprint/2570

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