Modified Disturbance Observer based Control for Periodic Disturbance Rejection in Time-delay Process

被引：0
|
作者：
Jin, Qibing [1 ]
Jia, Buyi [1 ]
机构：
[1] Beijing Univ Chem Technol, Inst Automat, Beijing 100029, Peoples R China
来源：
PROCEEDINGS OF THE 36TH CHINESE CONTROL CONFERENCE (CCC 2017) | 2017年
关键词：
Disturbance rejection; Modified disturbance observer; Periodic disturbance; Internal model control; Time-delay; MODEL-PREDICTIVE CONTROL; SYSTEMS; 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：
This paper investigates the periodic disturbance rejection control of time-delay process by integrating a modified disturbance observer (MDOB) and internal model control (IMC) structure. A modified disturbance observer design method based on zero-pole placement is proposed. By the MDOB, periodic disturbance can be accurately estimated and the estimation is used as compensation to suppress disturbance. Precise analysis of using MDOB to overcome model uncertainty and external periodic disturbance is given. In addition, the control scheme has two degrees of freedom, in which the IMC controller is used to get desired tracking performance. The simulation results demonstrate the effectiveness of the proposed method for both minimum phase and non-minimum phase system with time-delay.
引用
收藏
页码：6342 / 6347
页数：6
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