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System reconfiguration under open-switch faults in a doubly fed induction machine

Sae-Kok, Warachart and Grant, Douglas and Williams, Barry (2010) System reconfiguration under open-switch faults in a doubly fed induction machine. IET Renewable Power Generation, 4 (5). 458 - 470. ISSN 1752-1416

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Abstract

The aim of this study is to present system reconfiguration for a doubly fed induction machine (DFIM) after an open-switch fault is detected in its back-to-back converters. The open-switch fault and its detection for the scheme are discussed first. System reconfiguration is applied to operate the DFIM after the fault is detected. A four-switch converter topology with dc-link midpoint connection is selected to reconfigure the system. An existing pulse-width modulation method is investigated and applied to reconfigure the system, but uncontrollable capacitor voltage drift occurs. This study proposes a technique to solve the drift problem and also improve the quality of the dc-link voltage. Its effectiveness is substantiated by both simulation and experiment.

Item type: Article
ID code: 33085
Keywords: open-switch faults , induction machine, renewable power generation, renewable energy, Electrical engineering. Electronics Nuclear engineering, Renewable Energy, Sustainability and the Environment
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date deposited: 31 Aug 2011 14:11
Last modified: 21 Jul 2017 04:31
URI: https://strathprints.strath.ac.uk/id/eprint/33085
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