Wastewater treatment plant control by combining fuzzy logic and nonlinear estimation

Author

Sanchez, Edgar N. ; Celikovsky, Sergej ; Gonzalez, Jose M. ; Ramirez, Esperanza

Author_Institution

CINVESTAV, Unidad Guadalajara, Jalisco, Mexico

fYear

2001

fDate

2001

Firstpage

236

Lastpage

239

Abstract

The paper presents the application of fuzzy control and nonlinear estimation to wastewater treatment plants. This biological process is highly nonlinear and its control is a challenging task due to unmeasured variables and input disturbances. Fuzzy control is quite efficient to reduce the effect of unmeasured disturbances, but the used structure requires the measurement of all the state variables. In order to estimate the unmeasured ones, a nonlinear estimator is proposed. The final control structure is composed by the nonlinear estimator and the fuzzy control. The applicability of the proposed approach is validated via simulations

Keywords

fuzzy control; nonlinear control systems; parameter estimation; process control; water treatment; biological process; final control structure; fuzzy control; fuzzy logic; highly-nonlinear process; nonlinear estimation; nonlinear estimator; wastewater treatment plant control; Biomass; Error correction; Fuzzy control; Fuzzy logic; Marine vehicles; PD control; Region 10; Variable structure systems; Wastewater treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control, 2001. (ISIC '01). Proceedings of the 2001 IEEE International Symposium on

Conference_Location

Mexico City

ISSN

2158-9860

Print_ISBN

0-7803-6722-7

Type

conf

DOI

10.1109/ISIC.2001.971514

Filename

971514