摘要
针对一阶不稳定时滞过程,提出一种基于灵敏度函数的二自由度PID控制器整定策略。首先利用内环反馈得到稳定的广义被控过程的模型,然后基于灵敏度函数利用鲁棒分析方法整定二自由度PID控制器的参数。该方法使系统具有良好的目标值跟随特性、干扰抑制特性和鲁棒性,并且参数调整方便。仿真结果表明该控制方法的有效性。
This paper presents a control strategy based on sensitivity function to tune the two-degree-of-freedom PID controllers for first-order unstable process with time delay.First,the inner feedback is used to get the generalized stable process,and then the parameters of two-degree-of-freedom PID controllers were got based on the sensitivity function and analytical robust tuning.Good dynamic response performance of command tracking characteristic,disturbance rejection characteristic and robustness can be achieved simultaneously,and the parameters can be adjusted conveniently.The simulation results have demonstrated the effectiveness of the control method.
出处
《太原科技大学学报》
2013年第2期91-95,共5页
Journal of Taiyuan University of Science and Technology
基金
山西省自然科学基金项目(2011011011-2)
关键词
不稳定时滞过程
二自由度
PID控制器
鲁棒整定
unstable process with time delay
two-degree-of-freedom
PID controller
robust tuning
