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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23822

Title: Modified Smith predictor scheme for periodic disturbance reduction in linear delay systems
Authors: Yi-De Chen;Pi-Cheng Tung;Chyun-Chau Fuh
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
Keywords: Modified Smith predictor;Delay time;Disturbance reduction;Grey predictor
Date: 2007-12
Issue Date: 2011-10-20T08:08:22Z
Publisher: Journal of Process Control
Abstract: Abstract:This paper presents a disturbance reduction scheme for linear systems with time delays. The linear systems in the study are assumed to be nominally stable, minimum phase, and relative degree one systems. The proposed scheme is a combination of Astrom’s modified Smith predictor with a disturbance reduction controller and a grey predictor. Unlike conventional disturbance rejection methods, the scheme proposed in this study does not require the estimation of disturbance frequencies. The grey prediction method is used to approximate the inverse of the time delay and to enhance the robustness of the disturbance reduction scheme against errors in the estimated delay time. The simulation results demonstrate the successful performance of the proposed disturbance reduction method for controlling a linear system with time delays, subjected to both step and periodic disturbances.
Relation: 17(10), pp. 799–804
URI: http://ntour.ntou.edu.tw/handle/987654321/23822
Appears in Collections:[機械與機電工程學系] 期刊論文

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