压电陶瓷精密控制系统的自适应模糊控制器研究

The Control System of Piezoelectric Ceramic Precision Adaptive Fuzzy Controller

针对压电陶瓷等非线性系统,建立压电陶瓷微精密位移系统模型,并将模糊控制器替换传统的比例、积分和微分(PID)控制器,实现对PID参数的在线自整定。对模糊控制器的控制变量及论域等级等进行了研究及制定,并对其进行MATLAB仿真。实验结果表明,模糊逻辑控制器比传统PID控制器的响应速度快,超调量小,且控制策略简单易行。

Establish precision displacement system model based on the characteristics of the piezoelectric ceramic（PZT）,and the fuzzy controller is replaced with conventional PID controller,achieve on-line self-tuning PID parameters.Developed a control variable fuzzy controller,define fuzzy sets and the simulation with Matlab.The experimental results show that the fuzzy logic controller has fast response,less overshoot than traditional PID controller.