【摘要】 提出了一种简单但有效的永磁同步电机转子位置观测的新方法.该方法通过在电机定子绕组中注入高频电压,利用电机的凸极效应,通过对电机绕组端电流的处理计算,准确地估算出电机的转子位置.还提出了在电机静止状态下检测转子初始位置的新方法.仿真结果显示了所用方法的有效性和可行性.更多还原

【Abstract】 A simple but effective method to observe PMSM rotor position is presented in this paper.A high frequency voltage is injected into the motor and it will cause a little change of current signal because of the anisotropy of the machine.By processing the current in the armature,this method can calculate the rotor position accurately.This paper also presents a new way to observe the original rotor position when PMSM is standstill.The results of simulation show that this method can work feasibly and effectively.更多还原