一种改进的永磁同步电机无位置传感器直接转矩控制

An improved sensorless direct torque control for surface permanent magnet synchronous machine

为改进永磁同步电机无位置传感器直接转矩控制,提出一种结合扩展卡尔曼滤波和滑模观测器的PMSM速度及位置估算方法.使用Matlab/Simulink建立PMSM的无位置传感器直接转矩控制系统,实现无位置传感器情况下的PMSM启动与调速仿真.仿真结果表明,该方法具有较令人满意的效果.

To improve the performance of sensorless direct torque control of permanent magnet synchronous motor,a method integrating extended Kalman filter and sliding mode observer for PMSM speed and position estimation is proposed in this paper.And Matlab/Simulink is used to establish the speed control system used sensorless direct torque control method,and achieve the simulatioin of jump-start and speed control.The simulation results show that the method has more satisfactory performance.