PROBLEM TO BE SOLVED: To stably control a fuel cell voltage and a power storage device voltage while reducing power loss by avoiding a direct connected state between a first voltage adjustment device and a second voltage adjustment device as much as possible.SOLUTION: In an FC vehicle 10 and an FC system 12, an ECU 26 switches a BATVCU 24 from a direction connected state to a step-up/step-down state if an absolute value (voltage difference Vd) of difference between a load terminal voltage Vinv and an FC generation voltage Vfc is smaller than a sensor margin voltage Vsmg (VdIfcth).

    【課題】第1電圧調整装置及び第2電圧調整装置の双方が直結状態になることをできる限り回避することにより、電力損失を低減させつつ、燃料電池電圧及び蓄電装置電圧を安定に制御する。【解決手段】FC車両10及びFCシステム12において、ECU26は、負荷端電圧VinvとFC発電電圧Vfcとの差の絶対値(電圧差Vd)がセンサマージン電圧Vsmg未満となる場合(Vd<Vsmg)、あるいは、FC発電電流IfcとFC発電電流指令値Ifccomとの差の絶対値(電流差Id)が許容電流値Ifcthを超える場合(Id>Ifcth)、BATVCU24を直結状態から昇降圧状態に切り替える。【選択図】図1


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    Title :

    POWER SUPPLY SYSTEM AND FUEL CELL VEHICLE


    Additional title:

    電源システム及び燃料電池車両


    Contributors:

    Publication date :

    2016-01-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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



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