Smith predictor based robust fractional order control: Application to water distribution in a main irrigation canal pool

被引:74
作者
Feliu-Batlle, V. [1 ]
Rivas Perez, R. [2 ]
Castillo Garcia, F. J. [1 ]
Sanchez Rodriguez, L. [3 ]
机构
[1] Univ Castilla La Mancha, Escuela Tecn Super Ingn Ind, E-13071 Ciudad Real, Spain
[2] Havana Polytech Univ, Dept Comp Sci & Automat, CUJAE, Marianao 19390, C Habana, Cuba
[3] Univ Castilla La Mancha, Escuela Univ Ingn Tecn Ind, Toledo 45071, Spain
关键词
Robust fractional order control; Variable time delay process; Smith predictor based control system; Water distribution control in a main irrigation canal pool; WEIGHTING FUNCTION SELECTION; TIME; SYSTEMS; DESIGN;
D O I
10.1016/j.jprocont.2008.05.004
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 proposes a new methodology to design fractional integral controllers combined with Smith predictors, which are robust to high frequency model changes. In particular, special attention is paid to time delay changes. These controllers show also less sensitivity to high frequency measurement noise and disturbances than PI or PID controllers. This methodology is applied to design controllers for water distribution in a main irrigation canal pool. Simulated results of standard PI and PID controllers plus a Smith predictor, and the controller developed in this paper are compared when applied to the dynamical model of a real main irrigation canal pool showing that our controller exhibits better and more robust features than these. Moreover our controller is compared with other more complex control techniques as predictive control and robust H, controllers, exhibiting better or similar performances than these. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:506 / 519
页数:14
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