The invention discloses a speed control method for an alternating-current transmission locomotive. The speed control method is used in a deceleration parking stage, a constant-speed operation stage and an acceleration operation stage of the alternating-current transmission locomotive. The speed control method comprises the following steps: setting a speed target value; setting an acceleration target value; calculating a real-time acceleration feedback value, and performing closed-loop control on the acceleration target value and the acceleration feedback value to obtain the real-time required motor torque of the alternating current transmission locomotive; and obtaining a corresponding gear according to the motor torque of the alternating current transmission locomotive, and controlling the alternating current transmission locomotive. An acceleration closed-loop algorithm is adopted in the speed control method of the alternating-current transmission locomotive, operation can be carried out according to an acceleration-speed difference curve and a control algorithm, and adjustment of output traction force is achieved.

    本发明公开了一种交流传动机车的速度控制方法,所述速度控制方法使用在交流传动机车的减速停车阶段和恒速运行阶段及加速运行阶段;所述速度控制方法包括以下步骤:设定速度目标值;设定加速度目标值;计算实时的加速度反馈值,将加速度目标值和加速度反馈值进行闭环控制,得到实时所需的交流传动机车的电机扭矩;根据交流传动机车的电机扭矩,得到相应的档位,对交流传动机车进行控制。本发明的交流传动机车的速度控制方法中采用加速度闭环算法,可以按照加速度‑速度差曲线,按照控制算法运行,实现输出牵引力的调节。


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    Title :

    Speed control method of alternating current transmission locomotive


    Additional title:

    一种交流传动机车的速度控制方法


    Contributors:
    ZHOU QINGQIANG (author) / LI ZHE (author) / LIU BINGLI (author) / XU CHAOLIN (author) / SUN CHUANQING (author) / WANG ZHIQIANG (author) / JIA FENG (author) / QI SONGQI (author) / LIANG ZHIGANG (author)

    Publication date :

    2023-03-17


    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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