永磁同步电机的干扰观测器补偿与模糊切换控制

A PMSM speed control algorithm combining disturbance observer compensation and fuzzy integral sliding mode control (DOB+FISMC) was proposed to solve the problems of slow starting response speed and weak anti interference ability of PMSM speed regulation system. The PMSM speed control model with uncertain interference was established, and the equivalent integral sliding mode control of fuzzy switching was proposed. To reduce the switching gain of FISMC and improve the control accuracy, a disturbance observer was designed to compensate the total interference. The effectiveness of the control algorithm was verified based on the PMSM speed regulation system simulation model. The results show that, compared with the traditional proportional integral control (PI) and sliding mode control (SMC), the proposed algorithm has less tracking error, faster response and stronger resistance to interference for a given sinusoidal signal. This algorithm can improve the starting response speed and robustness of permanent magnet synchronous motors.