The invention relates to the technical field of magnetic levitation train traction force control, in particular to a magnetic levitation train traction force fluctuation suppression method, which comprises the following steps of: estimating mutual inductance flux linkage between a stator winding and an exciting winding in real time by observing extended back electromotive force of a long stator linear motor; the mutual inductance flux linkage parameters are used for calculating q-axis current and feed-forward voltage, output voltage is adjusted on line, and traction fluctuation caused by excitation current changes of the suspension system can be effectively restrained. The observed mutual inductance flux linkage parameters are used for real-time control of the traction system of the long-stator linear motor, and traction fluctuation caused by a suspension system can be effectively restrained when a track is uneven, load disturbance occurs or external force interference in the vertical direction occurs.

    本发明涉及磁悬浮列车牵引力控制技术领域,尤其涉及一种磁悬浮列车牵引力波动抑制方法,该方法通过观测长定子直线电机的扩展反电动势,实时估算定子绕组与励磁绕组之间的互感磁链,并将互感磁链参数用于q轴电流和前馈电压的计算,在线调整输出电压,可以有效抑制悬浮系统励磁电流变化引起的牵引力波动。本发明将观测到的互感磁链参数用于长定子直线电机牵引系统的实时控制,可以在轨道不平整、出现负载扰动或者垂直方向的外力干扰时,有效抑制悬浮系统引起的牵引力波动。


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    Title :

    Method for suppressing traction fluctuation of magnetically levitated train


    Additional title:

    一种磁悬浮列车牵引力波动抑制方法


    Contributors:
    DING ZHIYONG (author) / YU SENLIN (author) / ZHAO FANG (author) / YANG YICHEN (author) / YANG GAOXING (author) / SU PENGCHENG (author)

    Publication date :

    2024-12-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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