The invention discloses a ship alternating-current electric propulsion system based on a brushless doubly-fed generator. A shared alternating-current bus is further connected with the brushless doubly-fed generator, a rotating shaft of the brushless doubly-fed generator is connected with a diesel generator, the diesel generator is connected with an automatic speed regulation device, and the shared alternating-current bus is connected with a power winding PW of the brushless doubly-fed generator. A control winding CW of the brushless doubly-fed generator is connected with one end of a frequency converter, and the other end of the frequency converter is connected with a power winding PW of the brushless doubly-fed generator in a feedback mode. It is guaranteed that the diesel engine is wider in operation range and higher in operation efficiency while an electric brush and a sliding ring are omitted in the whole electric propulsion system. The problems that in a traditional ship alternating-current electric propulsion system based on a synchronous generator, a diesel engine must operate at the synchronous rotating speed of the synchronous generator, and ring slip occurs in the electric brush are solved, and therefore the operation range, efficiency and safety of the whole propulsion system are increased.

    本发明公开了一种基于无刷双馈发电机的船舶交流电力推进系统,在公共交流母线还连接无刷双馈发电机,无刷双馈发电机的转轴上连接柴油发电机,柴油发电机上连接有自动调速装置,公共交流母线与无刷双馈发电机的功率绕组PW连接,无刷双馈发电机的控制绕组CW连接有变频器,变频器另一端回馈连接无刷双馈发电机的功率绕组PW,整个电力推进系统在取消电刷和滑环的同时,保证柴油机运行范围更广、运行效率更高,解决了传统基于同步发电机的船舶交流电力推进系统中柴油机必须运行在同步发电机的同步转速以及存在电刷滑环的问题,从而使得整个推进系统的运行范围、效率以及安全性增加。


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    Title :

    Ship alternating-current networking electric propulsion system


    Additional title:

    一种船舶交流组网电力推进系统


    Contributors:
    CHEN JING (author) / WANG XUEFAN (author) / CHEN XI (author) / YIN JINJUN (author) / JIANG WEI (author)

    Publication date :

    2021-04-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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    Diesel-electric ship propulsion by means of alternating current

    De Aledo, J.G. | Engineering Index Backfile | 1932



    Brown Boveri diesel-electric ship propulsion with alternating current

    Klingelfuss, E. | Engineering Index Backfile | 1932