Tuning of PID controllers for unstable first-order plus dead time systems

被引：1

作者：

Bi, Jianyu ^{[1
]}

Tan, Wen ^{[2
]}

Yu, Mei ^{[1
]}

机构：

[1] North China Elect Power Univ, Sch Control & Comp Engn, Beijing 102206, Peoples R China

[2] North China Univ Technol, Sch Elect & Control Engn, Beijing 100144, Peoples R China

来源：

CHEMICAL PRODUCT AND PROCESS MODELING | 2023年 / 18卷 / 06期

关键词：

curve fitting; PID controller; tradeoff between performance and robustness; unstable FOPDT system; DESIGN; RULES;

D O I：

10.1515/cppm-2023-0027

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, proportional-integral-derivative (PID) controllers are tuned for unstable first-order plus dead time (UFOPDT) systems. Genetic algorithm (GA) is used to find the parameters of the PID controller for UFOPDT systems under the constraint of robustness measure. By curve fitting, the controller parameters are expressed as the functions of the UFOPDT model parameters. Two tuning formulas which consider robustness and the tradeoff between disturbance rejection and robustness of the closed-loop system are proposed. The proposed tuning formulas extend the application range of the existing methods and simulation results show that the tuned PID controllers can achieve good performance for UFOPDT systems.

引用

页码：877 / 891

页数：15

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