The invention discloses a railway vehicle, a traction motor control method and a device thereof. The control method comprises the steps: obtaining the target rotating speed of a traction motor; judging a speed interval where the target rotating speed is located, the speed interval at least comprising a first speed interval 0-f1, a second speed interval f1-f2 and a third speed interval f2-f3; a corresponding pulse width modulation signal is generated according to the speed interval where the target rotating speed is located; the pulse width modulation signal is sent to the traction converter; the traction motor is driven by the traction converter; wherein a first pulse width modulation signal is generated if the target rotating speed is within a first speed interval of 0-f1, a second pulsewidth modulation signal is generated if the target rotating speed is within a second speed interval of f1-f2, and a third pulse width modulation signal is generated if the target rotating speed is within a third speed interval of f2-f3. According to the control method, the complexity of traction motor control can be reduced, and development of traction motor control products is facilitated.

    本发明公开了一种轨道车辆及其牵引电机的控制方法、装置,其中,控制方法包括:获取牵引电机的目标转速;判断目标转速所处的速度区间,其中,速度区间至少包括第一速度区间0~f1、第二速度区间f1~f2和第三速度区间f2~f3;根据目标转速所处的速度区间生成相应的脉宽调制信号,并将脉宽调制信号发送至牵引变流器,以通过牵引变流器驱动牵引电机,其中,如果目标转速处于第一速度区间0~f1,则生成第一脉宽调制信号,如果目标转速处于第二速度区间f1~f2,则生成第二脉宽调制信号,如果目标转速处于第三速度区间f2~f3,则生成第三脉宽调制信号。该控制方法能够减小牵引电机控制的复杂性,便于牵引电机控制产品的开发。


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    Title :

    Railway vehicle and control method and control device of traction motor of railway vehicle


    Additional title:

    轨道车辆及其牵引电机的控制方法、控制装置


    Contributors:
    XU LUHUI (author) / DU ZHIYONG (author) / REN SHAOPENG (author)

    Publication date :

    2020-06-26


    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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