模糊自抗扰控制在永磁同步电机调速系统的应用

Fuzzy Auto Disturbances Rejection Control Application of Permanent Magnet Synchronous Motor Control System

摘要:

针对直接转矩调速系统中PID控制器参数鲁棒性差,调速过程中磁链和转矩脉动大的问题,设计了一种基于模糊的改进自抗扰转速控制器；自抗扰策略代替传统的PID控制方法,模糊规则对自抗扰控制算法进行简化,减少待整定参数；与传统的PID控制方法相比,模糊自抗扰控制能提高调速系统的误差估计补偿和抗干扰能力；对比仿真结果,模糊自抗扰控制响应速度快,明显降低了系统在调速过程中的磁链和转矩脉动,表明模糊自抗扰控制具有良好的控制性能,验证了该方法的有效性。

Abstract:

For the problem which include the poor robustness of PID parameter existed in the direct torque control system and the large torque ripple and the flux linkage ripple in the adjusting process, an improved Auto Disturbance Rejection Controller (ADRC) based on fuzzy control principle was designed. The ADRC tactics replaced the traditional PID controller. With the fuzzy regulation, the ADRC algorithm was simplified and the setting parameters was reduced. Compared with the traditional PID control method, the fuzzy ADRC could improve the estimation error and anti-disturbance capability of speed regulating system. By comparing the simulation results,the torque and flux linkage ripple was decreased effectively for the fuzzy ADRC with its rapid response speed. The simulation results showed that the fuzzy ADRC has good control performance and validated the feasibility and effectiveness of this method.