【摘要】 针对传统超螺旋滑模算法(Super Twisting Sliding Mode Control, STSMO)永磁同步电机(PMSM)无速度传感器存在的转速抖动和鲁棒性差问题，提出超螺旋算法与模糊控制相结合的永磁同步电机转速观测方法，并进行仿真试验.运用模糊规则解决超螺旋算法中边界函数上界获取困难的问题；利用模糊算法输出增益，提高系统鲁棒性，抑制抖动.仿真试验表明：应用该算法，控制系统的超调量为4%,滞后时间约为0.002 9 ms,调节时间为0.015 s.该算法具有收敛速度快、抖振小、估算精度高等优点.更多还原

【Abstract】 In order to solve the problem of speed jitter and poor robustness of sensorless permanent magnet synchronous motor(PMSM) based on the traditional Super Twisting Sliding Mode Control(STSMO) algorithm, this paper presents a novel method of speed measurement for permanent magnet synchronous motor based on super-spiral algorithm and fuzzy control.The fuzzy rules are used to solve the problem of obtaining the upper bound of the boundary function in the superhelix algorithm, and the fuzzy algorithm is used to output the gain and improve the robustness of the system to suppress the jitter.The simulation results show that the overshoot of the control system is 4%,the lag time is about 0.002 9 ms and the regulation time is 0.015 s, it has the advantages of fast convergence, small chattering and high estimation accuracy.更多还原