PROBLEM TO BE SOLVED: To provide an electric power conversion device which can while keeping a circuit to be directly connected to a fuel battery ungrounded, ground a motor drive circuit for driving a main motor after being supplied with electric power from the fuel cell.SOLUTION: An electric power conversion device comprises: an inverter which converts DC voltage supplied from a fuel battery into AC voltage; a current transformer having a primary side coil to which AC voltage is supplied from the inverter and a secondary side coil insulated from the same; a voltage conversion circuit which generates DC voltage according to the AC voltage supplied from the secondary side coil; a switching circuit which supplies AC voltage supplied from the voltage conversion circuit to a power supply line in a first mode, and supplies AC current supplied from an input terminal to the power supply line in a second mode; and a motor drive circuit which generates drive voltage according to DC voltage supplied from the power supply line. The inverter is electrically insulated from the voltage conversion circuit and the motor drive circuit.SELECTED DRAWING: Figure 1

    【課題】燃料電池に直接接続される回路を非接地としつつ、燃料電池から電力が供給されて主電動機を駆動するモーター駆動回路等を接地することが可能な電力変換装置を提供する。【解決手段】この電力変換装置は、燃料電池から供給される直流電圧を交流電圧に変換するインバーターと、インバーターから交流電圧が供給される1次側巻線及びそれから絶縁された2次側巻線を有する変圧器と、2次側巻線から供給される交流電圧に基づいて直流電圧を生成する電圧変換回路と、第1のモードにおいて、電圧変換回路から供給される直流電圧を電源ラインに供給し、第2のモードにおいて、入力端子から供給される直流電圧を電源ラインに供給する切換回路と、電源ラインから供給される直流電圧に基づいて駆動電圧を生成するモーター駆動回路とを備え、インバーターが、電圧変換回路及びモーター駆動回路から電気的に絶縁されている。【選択図】図1


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    Titel :

    ELECTRIC POWER CONVERSION DEVICE, ELECTRIC VEHICLE, AND ELECTRIC POWER CONVERSION METHOD


    Weitere Titelangaben:

    電力変換装置、電気車両、及び、電力変換方法


    Beteiligte:
    YONEYAMA TAKASHI (Autor:in) / HASEGAWA HITOSHI (Autor:in) / YAMAMOTO TAKAMITSU (Autor:in) / FURUYA YUMA (Autor:in) / OGAWA KENICHI (Autor:in) / YAMASHITA TOMOHIRO (Autor:in) / KOKAGO RYOTARO (Autor:in)

    Erscheinungsdatum :

    15.11.2018


    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 / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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