一类大滞后时间系统的智能PID控制

针对一类大滞后时间系统的智能PID参数控制进行了讨论,按照系统误差及误差速度在一个响应振荡周期内不同时刻的不同性质进行分区,分析了不同时段内系统的误差信号内在规律,确立了相应的人工智能控制策略,分段按自适应律调整比例、微分参数.仿真结果表明,该文所介绍的方法在响应速度和平稳性方面都获得了优于文献Pen和Zervos的结果.

An Intelligent PID Control for Some Big Delay Time Plants

A nonlinear PID parameters tuning for some big delay time plants with divisional intelligent control strategy is discussed in this paper. Division has been made according to system error and error speed. Some intrinsic mechanism is analyzed and some control rules are extracted according to human intelli-gence function. The parameters are tuned adaptively based on absolute error value in division. Simulation comparison has been done between the method discussed in this paper and the methods in paper [1,2]. The simulation results show that the performance obtained following the discussed method is much better than those from the paper[1,2] in tracing speed and stability of step response.