The invention discloses a control method of a single-inverter double-induction motor traction machine, which comprises the following steps of: firstly, starting closed-loop control when a rotor flux linkage is greater than a threshold value, and taking a stator current mean value as a three-phase actual current; secondly, the mean value of the angular speeds of the two asynchronous motors serves as the rotor angular speed, and the actual motor rotating speed is obtained; and performing coordinate transformation on the three-phase actual current to obtain excitation current and torque current. And then the electrical angle and the rotor flux linkage of the rotor are calculated, error control is carried out on the target rotating speed and the actual rotating speed to obtain a reference torque and a corresponding reference flux linkage, and error control is carried out. And finally, reference currents of the exciting current and the torque current are calculated respectively, three-phase reference currents are obtained through coordinate transformation, error control is carried out on the three-phase reference currents and the three-phase actual currents, the three-phase reference currents and the three-phase actual currents are input into a current hysteresis controller, and voltage for driving the motor to operate is obtained. The working efficiency of the driver is improved, the use flexibility of the traction machine is improved, and the power loss is reduced.

    本发明公开了一种单逆变器双感应电动机曳引机的控制方法,首先当转子磁链大于阈值时启动闭环控制,并将定子电流均值作为三相实际电流。其次将两台异步电机的角速度均值作为转子角速度,得到实际电机转速;将三相实际电流经过坐标变换,得到励磁电流和转矩电流。然后计算出转子的电角度和转子磁链,并将目标转速和实际转速进行误差控制得出参考转矩,以及对应的参考磁链,进行误差控制。最后分别计算出励磁电流和转矩电流的参考电流,经过坐标变换,得到三相参考电流,与三相实际电流进行误差控制,输入电流滞环控制器,得到驱动电机运行的电压。本发明提高了驱动器的工作效率,增加了曳引机使用的灵活性,减少电力损耗。


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    Titel :

    Control method of traction machine with single inverter and double induction motors


    Weitere Titelangaben:

    一种单逆变器双感应电动机曳引机的控制方法


    Beteiligte:
    WANG JIAJUN (Autor:in) / ZHAO XIAOFEI (Autor:in) / XIN ZHUANGZHUANG (Autor:in)

    Erscheinungsdatum :

    2023-09-01


    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 / B66B Aufzüge , ELEVATORS




    Single-phase traction motors

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    Tubular-axle induction motors for railway traction

    Stokes, R.W. / Lilley, M.J. / Lockwood, M. et al. | Tema Archiv | 1978


    Features of the design of traction induction motors

    Florentsev, S. N. / Izosimov, D. B. | IEEE | 2012