同步电动机静止变频自然换流起动过程研究

Study of Static Variable Frequency Starting Process of Synchronous Motors

针对用静止变频器起动的同步电动机，给出了变频起动的数学模型，对其起动的自 然换流过程进行了数字仿真，得到了起动过程中主要物理量，如电流、转速、转矩等的变化曲 线，并研究了转子位置初始角及换流超前角等对起动过程的影响．

The mathematical model of static variable frequency starting for synchronous motors is established and the process of the natural commutation range on starting is simulated by numerical simulation method, and the curves of currents, speed, torque are obtained. The influencess of the initial angle of rotor position and advanced angle for commutation are considered as well.