To provide a marine electric power system and a power control method for a marine propulsion system capable of suppressing as much as possible the decrease in a power supply amount to a first battery which supplies power to a starter to start an engine even when electric power is supplied to a marine propulsion device including an electric motor.SOLUTION: A marine 100 comprises a main battery 33 to supply power to a starter motor 25, an electric motor battery 34 to supply the power to an electric motor 22, a BMU 5, and a hybrid control unit 31. The BMU 5 outputs a first output power P1 of a demand power amount D1 to the main battery 33 based on the instruction of the hybrid control unit 31, and also outputs at least a part of surplus electricity Ps to the electric motor battery 34 when there is the surplus power Ps in a total power demand amount D0.SELECTED DRAWING: Figure 3

    【課題】電動機を含む船舶推進装置に電力を供給する場合にも、エンジンを始動させる始動装置に電力を供給する第1バッテリへの電力供給量が低下するのを極力抑制することが可能な舶用電源システム、および、船舶推進システムにおける電力制御方法を提供する。【解決手段】船舶100は、スタータモータ25に電力を供給するメインバッテリ33と、電動機22に電力を供給する電動機バッテリ34と、BMU5と、ハイブリッド制御部31とを備える。BMU5は、ハイブリッド制御部31の指令に基づいて、需要電力量D1の第1出力電力P1をメインバッテリ33に出力するとともに、総需要電力量D0に余剰電力量Psがある場合に、余剰電力量Psの少なくとも一部を電動機バッテリ34に対して出力する。【選択図】図3


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    Title :

    MARINE ELECTRIC POWER SYSTEM AND POWER CONTROL METHOD FOR MARINE PROPULSION SYSTEM


    Additional title:

    舶用電源システムおよび船舶推進システムにおける電力制御方法


    Contributors:

    Publication date :

    2021-10-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS



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