PID Tuning for Unstable Processes with Sensitivity Specification

摘要：

PID control is widely used to control stable processes, however its application to unstable processes is less common. In the paper, the formulas are derived to tune PID controller for unstable processes with time delay to meet sensitivity specification. It adopts two feedback loop design technique, and obtains a tuning method for PID controller with setpoint weighting which can overcome structural limitation of the typical PID controller for unstable processes. With the proposed PID tuning method, a loop transfer function with desired sensitivity specification is obtained, which guarantees both robustness and performance. Simulation examples are given to show good performance of the proposed tuning method.

关键词： PID control Unstable processes Sensitivity Robustness

作者: Ya-Gang Wang Xiao-Ming Xu

作者单位: University of Shanghai for Science and Technology, Shanghai 200093, China

会议类型: 国际会议

会议名称: 2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)

会议地点: 广西桂林

会议语种:英文

页码: 3460-3464

在线出版日期: 2009-06-17（万方平台首次上网日期，不代表论文的发表时间）