基于模糊自抗扰的PMSM无速度传感器控制

PMSM Sensorless Control Based on Fuzzy Active-disturbance Rejection

在永磁同步电机(permanent magnet synchronous motor,PMSM)无速度传感器控制系统中,为提高系统的鲁棒性和自适应能力,提出了新型自抗扰PMSM控制方案.在实际应用中,针对自抗扰控制器(ADRC)参数不便于实际操作和整定,引进模糊控制,结合各自的特点,给出了一种基于模糊控制原理的改进型自抗扰控制算法.视系统内、外扰动的总和为系统的未知扰动量,用新型自抗扰控制器来实现PMSM的无速度传感器控制.仿真表明,在不同的转速下,系统表现出很强的自适应能力和对系统扰动良好的鲁棒性,并且具有高精度的转速估计.实验验证了此控制策略在永磁同步电机控制领域的可行性和优越性.

In order to improve the system robustness and adaptive ability in the permanent magnet syn- chronous motor （PMSM） sensorless control system, a new active-disturbance rejection controller （ADRC） was presented. In practice, the ADRC parameters are difficult to operate and adjust, so we introduced the fuzzy control. Combined with their own characteristics, and a self-adapted active disturbance rejection con- troller with fuzzy control theory was designed. The inside and outside of the system disturbance were con- sidered as the unknown disturbances, with the new ADRC to implement the PMSM sensorless control. Simulation results have shown that the system has strong adaptive ability of disturbance and robust at dif- ferent speed conditions, and it has high accurate speed estimation. The feasibility and advantages of the control strategy have been validated in the field of permanent magnet synchronous motor control.