Observer-based input estimation in continuous anaerobic wastewater treatment processes

被引：9

作者：

Jauregui-Medina, E. A. ^{[1
]}

Alcaraz-Gonzalez, V. ^{[1
]}

Mendez-Acosta, H. O. ^{[1
]}

Gonzalez-Alvarez, V. ^{[1
]}

机构：

[1] Univ Guadalajara, Dept Ingn Quim, Ctr Univ Ciencias Exactas & Ingn, Guadalajara 44430, Jalisco, Mexico

来源：

WATER SCIENCE AND TECHNOLOGY | 2009年 / 60卷 / 03期

关键词：

anaerobic wastewater treatment; state and inputs estimation; unknown input observers; SYSTEMS; STATE;

D O I：

10.2166/wst.2009.354

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this paper a "virtually controlled observer" (VCO) is proposed to estimate simultaneously the influent substrate concentration and unmeasured state variables in continuous anaerobic digestion processes. The hypothetical (unmeasured) influent substrate concentration is updated by a feedback control, which is regulated by the estimation error of a measured output. The proposed approach is firstly illustrated upon a simple continuous bioprocess. Then, the performance of the observer is tested via numerical simulations in a continuous anaerobic digestion model. Results showed that it is possible to estimate both, the influent substrate concentration and unmeasured states in the digester in the face of parametric uncertainties.

引用

页码：805 / 812

页数：8