FAULT-DETECTION IN A CONTROL LOOP

被引：5

作者：

AUBRUN, C

ROBERT, M

CECCHIN, T

机构：

[1] Centre de Recherche en Automatique de Nancy, CNRS URA 821, Université Henri Poincaré Nancy 1, 54500 Vandoeuvre

来源：

CONTROL ENGINEERING PRACTICE | 1995年 / 3卷 / 10期

关键词：

FAULT DETECTION; SENSOR FAILURES; NONLINEAR SYSTEMS; VALVES; FUZZY SYSTEMS;

D O I：

10.1016/0967-0661(95)00147-M

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 deals with a fault-detection method applied to a control loop containing a non-linear actuator. In order to detect faults on the actuator, the sensor or the process itself, only three variables are available : the set-point, the measurement and the controller output. With the use of a static and a dynamic model of the system it is nevertheless possible to detect failures. To improve the quality of detection, a fuzzy C-means algorithm is proposed to calculate the model parameters. The proposed method has been applied to a flow control loop containing a pneumatic valve.

引用

页码：1441 / 1446

页数：6

共 11 条

[1]

[Anonymous], 1981, PATTERN RECOGN

[2]

BAYART M, 1992, IFAC S INTELLIGENT C

[3]

DEIBERT R, 1994, IFAC S SAFEPROCESS 9

[4]

FITZGERALD B, 1990, CHEM ENG MAY

[5] FAULT-DIAGNOSIS IN DYNAMIC-SYSTEMS USING ANALYTICAL AND KNOWLEDGE-BASED REDUNDANCY - A SURVEY AND SOME NEW RESULTS [J].

FRANK, PM .

AUTOMATICA, 1990, 26 (03) :459-474

[6] PROCESS FAULT-DETECTION BASED ON MODELING AND ESTIMATION METHODS - A SURVEY [J].

ISERMANN, R .

AUTOMATICA, 1984, 20 (04) :387-404

[7]

ISERMANN R, 1994, IFAC S SAFEPROCESS 9

[8]

ISERMANN R, 1994, CONTROL ENG PRACTICE, V3, P439

[9]

MAIRET I, 1993, THESIS U NANCY I

[10]

TOSHIRO T, FUZZY SYSTEMS THEORY

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