模糊PID自整定控制器的仿真研究

The simulation study of PID-controller with fuzzy self-adjusting parameter

针对传统PID控制器的一些问题,基于PID参数模糊自整定的方法,设计了一种参数自整定PID控制器。并运用Matlab模糊逻辑工具箱进行了仿真研究,结果表明:该模糊PID控制器能迅速消除系统余差,改善普通模糊控制器的性能;既具有PID控制器高精度的优点,又具有模糊控制器快速、适应性强的特点,保证了调节系统具有良好的动、稳态特性。

Aiming at the problem that conventional PID controller can not adjust parameters itself on line, a method of PID-control with fuzzy self-adjusting parameter is proposed based on fuzzy control technique. The result of simulation in Fuzzy Logic Tool Box of Maflab prove that the controller can eliminate steady state error of system and improve the performance of ordinary fuzzy controller. It possess both the precise character of PID controller and the flexible advantage of fuzzy controller, and can guarantee the regulation system has good dynamic and static quality.