LADRC-Smith Controller Design and Parameters Analysis for First-Order Inertial Systems with Large Time-Delay

被引：0
|
作者：
Wang, Yongshuai [1 ]
Chen, Zengqiang [1 ,2 ]
Sun, Mingwei [1 ]
Sun, Qinglin [1 ]
机构：
[1] Nankai Univ, Coll Comp & Control Engn, Tianjin 300350, Peoples R China
[2] Key Lab Intelligent Robot Tianjin, Tianjin 300350, Peoples R China
来源：
PROCEEDINGS OF 2018 IEEE 7TH DATA DRIVEN CONTROL AND LEARNING SYSTEMS CONFERENCE (DDCLS) | 2018年
基金：
中国国家自然科学基金;
关键词：
ADRC; first-order inertial systems; large time-delay; Smith predictor; frequency response; Bode diagram; DISTURBANCE REJECTION CONTROL;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In the process of modern industrial control, systems with large time-delay are typical problems. Thus in order to get better control effect, it is productive by combining advanced control methods with traditional Smith predictor. The aim of this paper is to present the LADRC(linear active disturbance rejection control)-Smith controller design and parameters analysis for first-order inertial systems with large time-delay, along with the discussion of frequency response and parameters perturbation for systems. To be specific, it is proved that the system is stable when parameters of plant are exactly known. Moreover, a sufficient stable condition is obtained when parameters of plant change. Besides, the step response, stability margin and capability of disturbance rejection are compared when the plant has a different degree of perturbation, and these results make great sense to design the LADRC-Smith controller and regulate parameters for time-delay systems.
引用
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页码：1 / 8
页数：8
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