The invention provides a position observation method for a segmented superconducting linear motor, which comprises the following steps: judging whether the speed of a train is smaller than a set speed threshold value or not, if so, entering a superconducting linear motor single-end power supply mode, judging whether the train is in a step changing state or not, and if not, supplying power to the superconducting linear motor by two converters, performing rotation speed identification to obtain the train speed and angle; if yes, the superconducting linear motor is powered by three converters, and rotating speed identification is carried out to obtain the train speed and angle; if the speed is not smaller than the set speed threshold value, entering a superconducting linear motor double-end power supply mode, judging whether the train is in a step changing state or not, if not, supplying power to the superconducting linear motor by two converters, and identifying the rotating speed to obtain the speed and angle of the train; if yes, the superconducting linear motor is powered by three converters, and rotating speed identification is carried out to obtain the train speed and angle. By applying the technical scheme of the invention, the technical problem that the speed sensorless position observation of the segmented superconducting linear motor cannot be realized in the prior art can be solved.

    本发明提供了一种分段超导直线电机的位置观测方法,包括:判断列车速度是否小于设定速度阈值,若小于,进入超导直线电机单端供电模式,判断列车是否处于换步状态,若否,超导直线电机由两台变流器供电,进行转速辨识获取列车速度和角度;若是,超导直线电机由三台变流器供电,进行转速辨识获取列车速度和角度;若不小于设定速度阈值,进入超导直线电机双端供电模式,判断列车是否处于换步状态,若否,超导直线电机由两台变流器供电,进行转速辨识获取列车速度和角度;若是,超导直线电机由三台变流器供电,进行转速辨识获取列车速度和角度。应用本发明的技术方案,能够解决现有技术中无法实现对分段超导直线电机无速度传感器位置观测的技术问题。


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    Titel :

    Position observation method of segmented superconducting linear motor


    Weitere Titelangaben:

    分段超导直线电机的位置观测方法


    Beteiligte:
    WEI KEKANG (Autor:in) / ZHANG YANQING (Autor:in) / YIN SHAOBO (Autor:in) / MAO KAI (Autor:in) / GUO YONGYONG (Autor:in) / JIANG XIN (Autor:in)

    Erscheinungsdatum :

    2023-07-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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