：针对电动汽车永磁同步电机无位置传感器控制系统，在两相静止坐标系( —B)内将滑模观测器法

与MRAS结合，提出了基于模型参考自适应的滑模观测器，并利用自适应律估计永磁同步电机的转子速度。仿真

和试验表明无位置传感器控制方法是切实可行的。

关键词：电动汽车永磁同步电机无位置传感器控制 自适应滑模观测器-This paper presents a new adaptive slid—mode observer for electric vehicle permanent magnet

synchronous motor(PMSM)sensorless control system，which is combined with the sliding mode observer and model

reference adaptive method in the two—phase stationary reference frame． The speed of PMSM rotor is estimated by

adaptive law．Simulation and experimental results show that the sensol ]ess control method is practical and feasible。

Key words：EV PMSM position sensor]ess control ASMO(adaptive slid—mode observer)