Two-degree-of-Freedom Robust PID Controller Design for Unstable System Using A Convex-Concave Optimization

被引：0
|
作者：
Boonto, Sudchai [1 ]
Thabthimrattana, Chawalit [1 ]
Polwisate, Wutthichai [1 ]
机构：
[1] King Mongkuts Univ Technol Thonburi, Dept Control Syst & Instrumentat Engn, Bangkok, Thailand
来源：
2021 21ST INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION AND SYSTEMS (ICCAS 2021) | 2021年
关键词：
2-DOF controller; PID controller; convex-concave optimization; fixed-structure controller design;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The paper discusses a two-degree-of-freedom controller design based on a convex-concave optimization technique. The improvement of the reference tracking performance of an unstable system is considered. Combining both feedback and feedforward fixed-structure controller is preferable for practical work. The optimization constraints are functions in a frequency domain for the feedback control, and the bounded value constraints of the feedforward part are done in time-domain absolute values. The proposed method is tested with an unstable magnetic levitation system. The result shows the two-degree-of-freedom controller can improve the transient response significantly.
引用
收藏
页码：1049 / 1054
页数：6
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