Modified Smith predictor for frequency identification and disturbance rejection of single sinusoidal signal

被引：12

作者：

Zheng, Da ^{[1
]}

Fang, Jian'an ^{[1
]}

Ren, Zhengyun ^{[1
]}

机构：

[1] Donghua Univ, Coll Informat Sci & Technol, Shanghai 201620, Peoples R China

来源：

ISA TRANSACTIONS | 2010年 / 49卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Smith predictor; Periodic disturbance; Time delay; Frequency estimation; Extended Kalman filter; LONG DEAD-TIME; REPETITIVE CONTROL; DISTORTED SIGNALS; KALMAN FILTER; PERIOD-TIME; SYSTEMS; DESIGN; INTEGRATOR; DELAY;

D O I：

10.1016/j.isatra.2009.10.001

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 presents a frequency identification and disturbance rejection scheme for open loop stable time delay systems with disturbance containing a constant signal and a single sinusoidal signal. Astrom's modified Smith predictor is employed to maintain good setpoint tracking performance Disturbance. rejection controller is designed via internal model control principle and functions as a finite dimensional repetitive controller. Extended Kalman filter is designed to track the frequency of unknown periodic disturbance. The simulation results demonstrate the successful performance of the proposed disturbance rejection method for controlling a linear system with time delays, subjected to both step and sinusoidal disturbances. (C) 2009 ISA. Published by Elsevier Ltd. All rights reserved.

引用

页码：95 / 105

页数：11

共 23 条

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