A knowledge based approach for setting protective relays in transmission networks

An expert system is developed to perform the setting of protective distance relays in high voltage transmission networks. The developed system accounts for the setting and coordination of the three normal distance stages as well as the overreach resetting stages. The system is implemented in Prolog...

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Bibliographic Details
Published in:Electric power systems research 1993-07, Vol.27 (2), p.107-115
Main Authors: Madkour, Mohamed A., El-Sayed, M.A.H.
Format: Article
Language:English
Subjects:
Applied sciences
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
expert systems
knowledge based systems
Power networks and lines
protective distance relays
relay setting
transmission networks
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Summary:An expert system is developed to perform the setting of protective distance relays in high voltage transmission networks. The developed system accounts for the setting and coordination of the three normal distance stages as well as the overreach resetting stages. The system is implemented in Prolog and features backward chaining reasoning with a hybrid rules and frames knowledge base. An efficient and flexible method is demonstrated for implementing frame based knowledge, which allows for inheritance and procedure attachment. The developed expert system can be used to set protective distance relays in transmission networks having arbitrary complex interconnections.
ISSN:0378-7796
1873-2046
DOI:10.1016/0378-7796(93)90034-C