专家自适应PID控制系统仿真

针对固定参数的控制器不能满足特性经常变化的控制系统要求的问题，给出了一种专家自适应ＰＩＤ（比例积分微分）控制器的设计及其仿真程序。该设计使用了临界比例度法、响应曲线法、模型识别法及积分分离控制算法，给出了模型识别法的公式及具体的整定规则。实验结果表明，当系统特性发生变化时，该控制器的控制效果明显优于固定参数控制器控制效果。

Simulation of expert self-adaptive PID controller system

In view of the problem that the fixed-tuning-parameter controller can not ful-fill the requirements of controlling systems that have a usually changing char-acteristic, this article gives the design and simulation program of an expertself-adaptive PID (proportional integral differential) controller. The design u-tilizes a series of methods such as critical proportion band method, responsecurved line method,pattern recognition approach and separable integral con-trol algorithm, formulas and the concrete tuning rule of the pattern recongni-tion approach. The result shows that under changing loop parameters the con-trolling effect of this controller is evidently much better than that of a fixed-tuning-parameter control ler.