A modified observer scheme for fault detection and isolation applied to a poorly observed process with integration

被引：6

作者：

Aguirre, LA

Pereira, MFS

机构：

[1] Ctro. Pesquisa Desenvolvimento em E., Lab. Controle Processos Industriais, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte, M.G.

来源：

JOURNAL OF PROCESS CONTROL | 1998年 / 8卷 / 01期

关键词：

fault detection and isolation; observers; monitoring systems;

D O I：

10.1016/S0959-1524(97)00026-7

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 investigates the application of the dedicated observer scheme (DOS) to a real tank system. As described, this system is not 'DOS-instrument-fault-detectable' due to the location of the sensors and the dynamical characteristics of the system itself. In order to overcome such a difficulty, this work proposes a dedicated observer scheme with periodic resetting (DOSPR). The design of the observers and the new algorithm are detailed in the paper. The new procedure was tuned and tested on a pilot plant. A complete nonlinear model with physical parameters measured from the plant are included. Some results are discussed in the paper. (C) 1997 Elsevier Science Ltd.

引用

页码：47 / 56

页数：10