An expert system for fault diagnosis integrated in existing SCADA system

Author

Bernard, J.-P. ; Durocher, D.

Author_Institution

Tech. de Reseaux, Hydro-Quebec, Montreal, Que., Canada

Volume

9

Issue

1

fYear

1994

fDate

2/1/1994 12:00:00 AM

Firstpage

548

Lastpage

554

Abstract

The operators of Hydro-Quebec´s 9 Regional Control Centres (RCC) are sometimes overloaded by the number of alarm messages produced when automatic controls operate to clear faults. To help operators, Hydro-Quebec has developed an expert system to perform a continuous analysis of alarm messages, automatically detect the application of the protection or restoration control and then produce a concise, real-time diagnosis identifying the origin and consequences of the fault. This paper describes the fault diagnosis problem faced by operators and the requirements met by the LANGAGE Expert System. It gives an overview of the knowledge representation technique used and of the actual distribution of the application that allows the execution of the various modules of LANGAGE in many computers and workstations installed in parallel with the existing SCADA system

Keywords

SCADA systems; diagnostic expert systems; electrical faults; failure analysis; knowledge representation; power system analysis computing; power system computer control; power system restoration; Hydro-Quebec; LANGAGE Expert System; Regional Control Centres; SCADA system; alarm messages; automatic controls; expert system; fault clearing; fault diagnosis; knowledge representation; protection; real-time diagnosis; restoration control; Automatic control; Control systems; Diagnostic expert systems; Face detection; Fault detection; Fault diagnosis; Knowledge representation; Performance analysis; Protection; Real time systems;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.317567

Filename

317567