自适应滑模观测器的永磁同步电机无位置传感器控制

摘要

为准确获取永磁同步电机转速与转子的位置信息，提出一种自适应滑模观测器对电机的转子位置和速度进行估算。通过对自适应切换函数、自适应低通滤波器、转子角度估算误差补偿等改进滑模观测器。仿真分析表明：该方法能快速和准确地跟踪电机转子的位置和速度，系统性能良好。%To accurately obtain the speed and rotor position of permanent magnet synchronous motor, an adaptive sliding mode observer for rotor position and speed estimating is proposed. The sliding mode observer is improved by using adaptively switching function, adaptive low-pass filter, the rotor angle estimation error compensation. Simulation results show that the proposed method can both quickly and accurately track rotor position and speed, have good system performance.