The invention discloses a linear induction motor traction speed measurement system, a speed measurement method and a traction force control method, in the linear induction motor traction speed measurement system, a linear induction motor secondary comprises an induction plate located on the upper layer and a magnetic conductive piece located on the lower layer, the induction plate comprises a plurality of transverse strips arranged in parallel and longitudinal strips connected with the two ends of each transverse strip, and hollow grooves are formed between the adjacent transverse strips, so that the linear induction motor primary generates large eddy current around the hollow grooves on the induction plate; the speed measurement sensor is an eddy current sensor, is mounted on a vehicle and is opposite to the secondary side of the linear induction motor, and the speed measurement sensor is provided with a coil, so that a small eddy current is generated on the cross bar, the small eddy current is sensed to generate discontinuous eddy current signals and the eddy current signals are transmitted to the speed measurement processing unit; and the speed measurement processing unit is used for obtaining the signal cycle time according to the discontinuous eddy current signals and obtaining the running speed of the vehicle by combining the longitudinal spacing distance of the transverse strips. The traction and speed measurement requirements can be met at the same time, the structure is simple, and the speed measurement precision is high.

    本申请公开了一种直线感应电机牵引测速系统、测速方法及牵引力控制方法,该直线感应电机牵引测速系统中,直线感应电机次级包括位于上层的感应板与位于下层的导磁件,所述感应板包括多个平行排列的横条以及连接各横条两端的纵条,相邻横条之间形成镂空槽,使直线感应电机初级在感应板上产生围绕镂空槽的大涡流;所述测速传感器为涡流传感器,安装于车辆上,且正对直线感应电机次级,所述测速传感器设有线圈使横条上产生小涡流且感应小涡流生成间断的涡流信号且传输给测速处理单元;所述测速处理单元用于根据间断涡流信号得到信号周期时间,结合横条纵向间隔距离,得到车辆的运行速度。本申请能同时满足牵引和测速需求,结构简单,测速精度高。


    Access

    Download


    Export, share and cite



    Title :

    Linear induction motor traction speed measurement system, speed measurement method and traction force control method


    Additional title:

    一种直线感应电机牵引测速系统、测速方法及牵引力控制方法


    Contributors:
    QIAN CHENGZHI (author) / SONG LIWEI (author) / LUO HUAJUN (author) / ZHANG WENYUE (author) / DENG JIANGMING (author) / ZHANG WENHUI (author) / LI HAO (author) / CAO FEN (author) / GAO FENG (author)

    Publication date :

    2024-07-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen







    DEVICE FOR CONTROL OF TRACTION MOTOR SPEED

    MAZNEV ALEKSANDR SERGEEVICH / KISELEV ALEKSANDR ALEKSANDROVICH | European Patent Office | 2020

    Free access