POWER CONVERSION SYSTEM

Provided is a power conversion system which can suppress a fault in a short-circuiting switch that bypasses a fault unit and enhance the reliability and redundancy of the system. The power conversion system (100) is provided with a plurality of power converter units (10) that are formed by using sem...

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Bibliographische Detailangaben
Hauptverfasser: URAI, Hajime, FURUKAWA, Kimihisa, NAKAO, Noriya, KAMIZUMA, Hiroshi, NAKATSU, Kinya
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Provided is a power conversion system which can suppress a fault in a short-circuiting switch that bypasses a fault unit and enhance the reliability and redundancy of the system. The power conversion system (100) is provided with a plurality of power converter units (10) that are formed by using semiconductor switch elements and are connected in series, and comprises: switch elements (201, 211) that are provided to input terminals and/or output terminals of the power converter units (10) and bypass the power converter units (10); and overvoltage suppressing elements (202, 212) which are connected in parallel with the switch elements (201, 211) and in which conducting states are changed by an application of a prescribed voltage.