直驱永磁同步发电机无位置传感器控制研究

提出一种基于锁相环技术的无位置传感器控制策略,该控制策略将系统输出的相位与给定信号相位的相位差值锁定为一个固定值,根据锁相环特性就可以得出电机位置、频率信号。仿真结果表明,该方法实现了全速范围内转子位置、速度的准确、快速检测。

Sensor-less Control for Directly Driven Permanent Magnet Synchronous Motor

A phase-locked loop technology for Sensor-less control strategy is investigated in this paper.The phase difference value between a given signal phase and system output signal phase is locked to a fixed value to obtain the position/frequency according to the PLL characteristics in this control theme.The simulation results indicate that the proposed theme is suitable for the sensor-less vector control of PMSM in a wide speed range.