基于遗传整定的永磁交流伺服系统模糊免疫PID控制器

Fuzzy-Immune-PID Controller Based on Genetic Tuning for Permanent Magnet AC Servo Control System

提出了一种基于遗传整定的模糊免疫PID控制器,并将其应用于永磁交流伺服系统之中。该控制方法将生物免疫反馈机理与模糊控制相结合,由一个常规的PID控制器和一个免疫型比例控制器顺序串联实现,其中免疫比例控制器的非线性函数由模糊推理实现,PID及免疫比例控制器中的参数由遗传算法实现自寻优。利用功能强大的仿真工具Matlab/Simulink对交流伺服系统进行仿真,控制器算法简单,易于实现。结果表明,该控制方法具有响应速度快、鲁棒性强等优点,显著提高了系统性能。

A fuzzy-immune-PID controller based on genetic tuning is proposed in this paper, and applied to the permanent magnet AC servo control system. Combining the immune feedback mechanism and fuzzy control, the method is implemented by linking a typical PID controller and an immune proportion controller, whose non-linear function is implemented by fuzzy illation. The parameters of PID controller and immune proportion controller are tuned by genetic algorithms. It can be realized easily with simpler structure and control algorithms. The simulation curves indicate that the control method can improves the performance of system obviously. Besides, it has the advantage of quick response and good robust.