PROBLEM TO BE SOLVED: To provide an electric vehicle power conversion device capable of implementing downsizing while improving reliability of the power conversion device.SOLUTION: An electric vehicle power conversion device of an embodiment includes: a plurality of power conversion units; a plurality of capacitors; a contactor; and a control unit. The plurality of power conversion units are made to be redundant so that the units' load side and power supply side to which DC power is supplied are common; and generate power to be supplied to the load side. The plurality of capacitors are made to correspond to the plurality of power conversion devices, respectively, and are provided on the input side of the power conversion units. The contactor connects some of the plurality of power conversion units with the plurality of capacitors. The control unit selects a power conversion unit to be made to be in an operation state from the plurality of power conversion units; and controls the contactor so that the selected power conversion unit is made to be connected with the plurality of capacitors.SELECTED DRAWING: Figure 1

    【課題】電力変換装置の信頼度を高めつつ、小型化を実現することができる電気車用電力変換装置を提供することである。【解決手段】実施形態の電気車用電力変換装置は、複数の電力変換部と、複数のコンデンサと、接触器と、制御部とを持つ。複数の電力変換部は、直流電力が供給される電源側と負荷側とを共通にするように冗長化されて、前記負荷側に供給する電力を生成する。複数のコンデンサは、前記複数の電力変換部のそれぞれに対応させて、前記電力変換部の入力側に設けられる。接触器は、前記複数の電力変換部のうち一部と前記複数のコンデンサとを接続する。制御部は、前記複数の電力変換部のうちから稼働状態にする電力変換部を選択し、前記選択した電力変換部と前記複数のコンデンサとを接続させるように前記接触器を制御する。【選択図】図1


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    Titel :

    ELECTRIC VEHICLE POWER CONVERSION DEVICE


    Weitere Titelangaben:

    電気車用電力変換装置


    Beteiligte:
    SHIRASAWA YUKI (Autor:in)

    Erscheinungsdatum :

    2017-03-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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