A multi-criteria differential transformer relay based on fuzzy logic

Author

Wiszniewski, Andrzej ; Kasztenny, Bogdan

Author_Institution

Dept. of Electr. Eng., Tech. Univ. Wroclaw, Poland

Volume

10

Issue

4

fYear

1995

fDate

10/1/1995 12:00:00 AM

Firstpage

1786

Lastpage

1792

Abstract

This paper presents a digital relay scheme for the primary protection of power transformers. A multi-criteria algorithm is developed based on fuzzy sets for the decision making part of the scheme. The cost of wrong decision-making and the amount of information inflow are used along with several standard criteria to improve the reliability of the protection. It is shown that the proposed scheme, if properly tuned, can enhance the sensitivity and selectivity of the digital relay and mitigate problems associated with conventional relay schemes

Keywords

control system synthesis; fuzzy control; operations research; power system control; power system protection; power system relaying; power transformer protection; relay protection; transformer windings; algorithm; decision making; fuzzy logic; fuzzy sets; multi-criteria differential transformer relay; power systems; power transformers; primary protection; reliability; selectivity; sensitivity; Circuit faults; Costs; Decision making; Delay; Digital relays; Fuzzy logic; Fuzzy sets; Power transformers; Protective relaying; Surge protection;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.473379

Filename

473379