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

页码：1049 / 1054

页数：6

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