基于S函数的模糊整定PID控制器的设计及仿真

Design and Simulation of a Fuzzy Tuning PID Controller with S-functions

针对工业过程控制中被控对象往往为非线性、时变系统,常规的PID控制对于这样的系统的控制效果不是很理想,提出了模糊整定PID控制算法,并且在Matlab下利用S函数实现了模糊整定PID控制器的设计及仿真,并将该方法用于激光晶体生长系统的直径调节器中,结果表明,该系统对纯滞后、参数时变的激光晶体生长系统有很好的控制作用。

This paper introduces a fuzzy tuning PID controller designed by using S-Function in Malab. The contorller is used tor diameter control of laser crystal growth system. Experiment shows that the method is suitable for the system with nonlinear, great inertia, pure hysteresis and time-varying characteristics.