Modified relay feedback approach for controller tuning based on assessment of gain and phase margins

被引：17
|
作者：
Jeng, Jyh-Cheng [1 ]
Huang, Hsiao-Ping [1 ]
Lin, Feng-Yi [1 ]
机构：
[1] Natl Taiwan Univ, Dept Chem Engn, Taipei 106, Taiwan
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2006年 / 45卷 / 12期
关键词：
D O I：
10.1021/ie051310z
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A relay feedback based method for tuning a PI/PID (proportional-integral- derivative) controller with an assessment of gain and phase margins is proposed. The proposed method estimates the gain and phase margins of an existing control system by a modified relay feedback scheme, where a delay element is embedded between the relay and controller. The gain and phase margins of a control system are used to assess the control performance. When the controller is found not in good performance, the proposed method is then applied to retune the PI/PID controller based on gain- and phase-margin specifications. Simulation results have shown that the proposed method is effective for processes with different kinds of dynamics and for multiloop systems.
引用
收藏
页码：4043 / 4051
页数：9
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