基于自适应步长预测锁相环的无传感器内置式永磁同步电机转子位置估计方法

The fixed-gain position observer for sensorless interior permanent magnet synchronous motor (IPMSM) drives requires repeated trials for parameter tuning and has poor dynamic response capability. A novel adaptive step-size predictive phase-locked loop (ASS-PPLL) based rotor position estimation method is proposed to improve dynamic performance in this article. A cost function using position-tracking...