摘要
针对基于DCS预测PID的控制系统,利用Kharitonov定理和边缘理论分析其在参数不确定情况下输入/输出鲁棒稳定性。具体对一阶加纯滞后对象给出了系统保持稳定的最大过程参数区间。仿真结果表明,当过程参数偏离标称值时,该方法能使系统保持很好的鲁棒稳定性。
The paper proposed input and output robust stability analysis of predictive PID control based on DCS （distributed control systems）, aimed at first-order plus dead-time model, by using Kharitonov theorem and edge theorem. It gave the largest process parameters ranges when the system＇ s parameters were uncertainty. The theoretic analysis and simulation results demonstrate that this control algorithm has better robustness than PID control algorithm when the process parameters are far away from the nominal value.
出处
《计算机应用研究》
CSCD
北大核心
2008年第5期1357-1360,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(60474051)
山东省自然科学基金资助项目(Y2004G06)
