The invention discloses a marine electric propulsion system topology which is composed of a propulsion motor, a propulsion frequency converter, a first direct-current power source and a second direct-current power source, the propulsion motor is a double twenty-phase winding motor, the propulsion frequency converter comprises a main loop left channel and a main loop right channel which are symmetrically arranged, each channel comprises four main loop branches which are the same in structure, and each main loop branch is provided with a first direct-current power source and a second direct-current power source. Each main loop branch is composed of a five-phase three-level bridge arm unit and a five-phase filtering unit; each main loop branch of the propulsion frequency converter is connected with a single group of five-phase windings corresponding to the propulsion motor, and a neutral point of each group of five-phase windings is connected with a direct-current neutral point of the corresponding five-phase three-level bridge arm unit. Compared with a conventional three-phase marine electric propulsion system, the three-phase marine electric propulsion system has the advantages of being high in reliability, small in torque pulsation, low in vibration noise, capable of effectively utilizing harmonic output, high in input direct-current voltage and the like, and is particularly suitable for high-power electric propulsion of ships.

    本发明公开了一种船用电力推进系统拓扑,由推进电机、推进变频器、直流电源一和直流电源二组成,推进电机为双二十相绕组电机,推进变频器包括对称设置的主回路左通道和主回路右通道,每个通道均包括四个构成相同的主回路支路,每个主回路支路均由一个五相三电平桥臂单元和一个五相滤波单元组成;所述的推进变频器每个主回路支路与所述的推进电机对应的单组五相绕组连接,所述的每组五相绕组的中性点均与对应的五相三电平桥臂单元的直流中性点相连接。本发明相较常规三相船用电力推进系统具有可靠性高、转矩脉动小、振动噪声低、可有效利用谐波出力、输入直流电压高等优点,特别适合于船舶大功率电力推进。


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    Titel :

    Marine electric propulsion system topology


    Weitere Titelangaben:

    一种船用电力推进系统拓扑


    Beteiligte:
    ZHU JUN (Autor:in) / CHEN JIAFU (Autor:in) / LIU CHANGJIANG (Autor:in) / HU CHUANXI (Autor:in)

    Erscheinungsdatum :

    2024-01-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



    ELECTRIC MARINE PROPULSION SYSTEM

    TAYLOR BRAD E / REICHARDT DOUGLAS D / PICKETT II PETER A | Europäisches Patentamt | 2024

    Freier Zugriff

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