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

Warachart Sae-Kok, Douglas Grant, Barry Williams

Research output: Contribution to journalArticle

34 Citations (Scopus)

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.
LanguageEnglish
Pages458 - 470
Number of pages23
JournalIET Renewable Power Generation
Volume4
Issue number5
DOIs
Publication statusPublished - 2010

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Switches
Electric potential
Pulse width modulation
Capacitors
Topology
Experiments

Keywords

  • open-switch faults
  • induction machine
  • renewable power generation
  • renewable energy

Cite this

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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.",
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System reconfiguration under open-switch faults in a doubly fed induction machine. / Sae-Kok, Warachart; Grant, Douglas; Williams, Barry.

In: IET Renewable Power Generation, Vol. 4, No. 5, 2010, p. 458 - 470 .

Research output: Contribution to journalArticle

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AU - Sae-Kok, Warachart

AU - Grant, Douglas

AU - Williams, Barry

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AB - 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.

KW - open-switch faults

KW - induction machine

KW - renewable power generation

KW - renewable energy

U2 - 10.1049/iet-rpg.2010.0005

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