基于极限环振荡器的永磁同步电机无传感器驱动位置估计误差自适应抑制方法

In the flux model–based position sensorless permanent magnet synchronous motor (PMSM) drive system, cross-saturation effect, parameter mismatch, and other factors cause errors in the flux and position estimation. In this article, a novel adaptive position estimation error suppression method based on a limit cycle oscillator (LCO) is proposed for PMSM drives. Based on the estimation error analysis ...