Smith predictor with sliding mode control for processes with large dead times

Author:

Mehta Utkal1,Kaya İbrahim2

Affiliation:

1. The University of the South Pacific, Laucala Campus , Fiji

2. Dicle University , Electrical and Electronics Eng. Dept. , 21280 , Diyarbakır , Turkey

Abstract

Abstract The paper discusses the Smith Predictor scheme with Sliding Mode Controller (SP-SMC) for processes with large dead times. This technique gives improved load-disturbance rejection with optimum input control signal variations. A power rate reaching law is incorporated in the sporadic part of sliding mode control such that the overall performance recovers meaningfully. The proposed scheme obtains parameter values by satisfying a new performance index which is based on biobjective constraint. In simulation study, the efficiency of the method is evaluated for robustness and transient performance over reported techniques.

Publisher

Walter de Gruyter GmbH

Reference30 articles.

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3. [3] M. R. Matausek and A. D. Micic, “A modified smith predictor for controlling a process with an integrator and long dead-time”, IEEE Trans. Automatic Contr., vol. 41, no.8, pp. 1199 - 1203, 1996.

4. [4] S. Majhi and D. Atherton, “Obtaining controller parameters for a new smith predictor using auto tuning”, Automatica, vol. 36, pp. 1651-8, 2000.

5. [5] I. Kaya, “IMC based automatic tuning method for PID controllers a smith predictor configuration”, Computers & Chemical Engineering, vol. 28, pp. 281-290, 2004.

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