Fuzzy observers for anaerobic WWTP: Development and implementation

被引:20
作者
Carlos-Hernandez, S. [1 ]
Sanchez, E. N. [2 ]
Beteau, J. F. [3 ]
机构
[1] CINVESTAV, IPN, Ramos Arizpe 25900, Mexico
[2] CINVESTAV, IPN, Unidad Guadalajara, Guadalajara 45090, Jalisco, Mexico
[3] Inst Natl Polytech Grenoble, Dept Automat Control, GIPSA Lab, F-38402 St Martin Dheres, France
关键词
Fuzzy observer; State estimation; Principal component analysis; Anaerobic digestion; Wastewater treatment plant; WATER; DIGESTION;
D O I
10.1016/j.conengprac.2008.11.008
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper a set of fuzzy observers for anaerobic digestion is proposed to estimate variables difficult to measure in a completely stirred tank reactor. First, a mathematical model for the process is stated and experimentally validated. Then, a methodology based on principal components analysis is developed to select fuzzy variables, which allow the local observers to be adequately activated. The active local observers are interpolated using the Takagi-Sugeno approach, in order to recover the non-linear behaviour: to ensure their adequate performance, the respective stability analysis is included. The whole estimation scheme is validated via simulations and tested in a real process. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:690 / 702
页数:13
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