摘要
通过两次继电反馈 ,测得被控对象两个关键信息点的频率特性 ,从而辨识得到二阶纯滞后模型 ;然后引入一种二自由度PID控制器结构 ,根据幅值最优化原理整定PID控制器的参数。
A second order plus dead time model is estimated with two relay feedback experimental data at two different frequency points.A kind of two degree of freedom PID controller structure is presented and the corresponding PID controller parameters can be determined based on magnitude optimum criterion.Simulation results show that the closed loop systems designed with the presented tuning method possesses good stability and robustness.
出处
《化工自动化及仪表》
CAS
北大核心
2003年第6期49-52,共4页
Control and Instruments in Chemical Industry
基金
国家"十五"科技攻关项目资助 ( 2 0 0 1BA2 0 4B0 1)
关键词
继电反馈
二自由度
PID
幅值最优化
参数整定
relay-feedback
two-degree-of-freedom
PID
magnitude optimum
parameters tuning
