基于模糊PI的无刷直流电机调速系统建模与仿真研究

Research on Modeling and Simulation of Brushless DC Motor Speed Control System Based on Fuzzy PI

针对传统PI控制的无刷直流电机存在的动态性能不理想、不具备自适应调节的局限性,提出基于模糊PI的自适应控制方法。借助模糊控制理论,将其与PI控制相结合,在保持原有PI控制的优点下,可实现对PI参数的在线调节,并对模糊PI控制进行建模仿真。仿真结果表明,基于模糊PI控制的无刷直流电机调速系统响应快,超调小,系统鲁棒性好。

The dynamic performance of the brushless DC motor with the traditional PI control is not satisfactory,and the adaptive control method based on fuzzy PI is proposed.With the help of fuzzy control theory,the PI control is combined with the advantages of maintaining the original PI control,can realize the online adjustment of PI parameters,and the fuzzy PI control simulation,simulation results show that the brushless DC motor speed regulation system based on fuzzy PI control is fast,and the system is robust.