Control of Uncertain LTI Systems Based on an Uncertainty and Disturbance Estimator
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Published:2004-12-01
Issue:4
Volume:126
Page:905-910
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ISSN:0022-0434
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Container-title:Journal of Dynamic Systems, Measurement, and Control
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language:en
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Short-container-title:
Author:
Zhong Qing-Chang1, Rees David1
Affiliation:
1. School of Electronics, University of Glamorgan, Pontypridd, CF37 1DL, United Kingdom
Abstract
This paper proposes a robust control strategy for uncertain LTI systems. The strategy is based on an uncertainty and disturbance estimator (UDE). It brings similar performance as the time-delay control (TDC). The advantages over TDC are: (i) no delay is introduced into the system; (ii) there are no oscillations in the control signal; and (iii) there is no need of measuring the derivatives of the state vector. The robust stability of LTI-SISO systems is analyzed, and simulations are given to show the effectiveness of the UDE-based control with a comparison made with TDC.
Publisher
ASME International
Subject
Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering
Reference19 articles.
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