Diagnosis and Tolerant Control Methods for an Open-Switch Fault in a Vienna Rectifier
被引:14
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作者:
Park, Jin-Hyuk
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机构:
Korea Railrd Res Inst, Electrificat Syst Res Team, Uiwang 16890, South KoreaKorea Railrd Res Inst, Electrificat Syst Res Team, Uiwang 16890, South Korea
Park, Jin-Hyuk
[1
]
Lee, June-Seok
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机构:
Dankook Univ, Sch Elect & Elect Engn, Yongin 16890, South KoreaKorea Railrd Res Inst, Electrificat Syst Res Team, Uiwang 16890, South Korea
Lee, June-Seok
[2
]
Kim, Myung-Yong
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机构:
Korea Railrd Res Inst, Prop Syst Res Team, Uiwang 16105, South KoreaKorea Railrd Res Inst, Electrificat Syst Res Team, Uiwang 16890, South Korea
Kim, Myung-Yong
[3
]
Lee, Kyo-Beum
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机构:
Ajou Univ, Dept Elect & Comp Engn, Suwon 16499, South KoreaKorea Railrd Res Inst, Electrificat Syst Res Team, Uiwang 16890, South Korea
Lee, Kyo-Beum
[4
]
机构:
[1] Korea Railrd Res Inst, Electrificat Syst Res Team, Uiwang 16890, South Korea
[2] Dankook Univ, Sch Elect & Elect Engn, Yongin 16890, South Korea
[3] Korea Railrd Res Inst, Prop Syst Res Team, Uiwang 16105, South Korea
[4] Ajou Univ, Dept Elect & Comp Engn, Suwon 16499, South Korea
In this article, fault diagnosis and tolerant control methods are proposed for an open-switch fault in a Vienna rectifier. The proposed diagnosis method uses only the input currents to detect an open-switch fault without any additional hardware. In the proposed tolerant control, the offset voltage is used to restore the input currents when an open-switch fault occurs in a Vienna rectifier. In addition, the proposed tolerant control considers the balance of the neutral-point voltage. This method can improve the total harmonic distortion (THD) of the current and mitigate the dc-link voltage ripple. The effectiveness of the proposed open-switch fault diagnosis and tolerant control method is verified by simulated and experimental results.