Fault detection by using the innovation signal: application to an exothermic reaction

被引：22

作者：

Chetouani, Y ^{[1
]}

机构：

[1] INSA, Lab Risques Chim & Proc, F-76131 Mont St Aignan, France

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2004年 / 43卷 / 12期

关键词：

fault detection; extended Kalman filter (EKF); safety; exothermic reaction;

D O I：

10.1016/j.cep.2004.02.002

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Plants in the chemical and biochemical industries are becoming larger and more complex. The growing safety and environmental demands are forcing industry to look for new and more powerful techniques for the detection of process faults. In this paper, we present a method for detecting faults that can appear in some parts of a chemical plant. This method is based on statistical information generated by the extended Kalman filter (EKF) and is intended to reveal any drift from the normal behavior of the process. The work done in this paper is an application of the EKF to a nonlinear system such as stirred reactors in the presence of exothermic chemical reactions. We examine the abnormal behavior of a chemical reactor due to two different faults in its control parameters. The chosen reaction is a very exothermic oxido-reduction one; the oxidation of sodium thiosulfate by hydrogen peroxide. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1579 / 1585

页数：7

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