三相异步电动机阻容制动瞬态过程仿真研究

根据三相异步电动机在α-β静止坐标系下的变参数动态数学模型,编写了一个适合于三相异步电动机阻容制动瞬态过程的实用仿真计算程序,通过实例对三相异步电动机阻容制动运行过程进行仿真计算和分析;根据三相异步发电机稳态等效电路,用最优化方法得到了励磁电容临界值,计算结果与实测结果基本吻合.并对仿真结果进行比较分析,得出了一些有用的结论.

Transient Simulation of Induction Motors Under Resistance-Capacitance Braking State

This paper deals with the transient analysis of three-phase induction motors under resistance-capacitance braking state. According to the dynamic mathematical model of three-phase induction machine in a-b reference frame,The magnetizing inductance varied with the transient saturation of main flux path and the rotor parameter varied with the frequency are taken into account. The computer simulation program is developed which applies to resistance-capacitance braking operation process of three-phase induction motors. By means of the steady-state equivalent circuit the optimal critical values of the excitation capacitor is obtainted. The program is applied to simulate resistance-capacitance braking operation process of three-phase induction motor with no-load and rated constant torque load and rated friction damping load and rated fan load. The simulated and measured results are in good agreement.