New solutions for improved transmission line protective relay performance analysis

Author

Kezunovic, M. ; Pang, C. ; Ren, J. ; Guan, Y.

Author_Institution

Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX

fYear

2008

fDate

5-7 May 2008

Firstpage

786

Lastpage

791

Abstract

Transmission line protective relays are assuring normal operation of power system by automatically isolating faulted sections. Different disturbances in power system could affect relay behavior and may result in relay misoperation or unintended operation. This paper explores various aspect of the performance analysis of existing protective relays. Three categories of solutions are discussed: 1) relay performance evaluation based on relay testing; 2) on-line relay monitoring based on advanced fault analysis and relay dynamic performance analysis; 3) intelligent alarm processing based on analysis of the relay logic operands. Case study and benefits are presented for each solution for relay performance analysis to demonstrate the advantages.

Keywords

fault location; power cables; power system relaying; relay protection; advanced fault analysis; faulted section automatic isolation; intelligent alarm processing; on-line relay monitoring; power system; relay dynamic performance analysis; relay logic operands analysis; relay performance analysis; relay performance evaluation; relay testing; transmission line protective relay; Performance analysis; Power system analysis computing; Power system faults; Power system protection; Power system relaying; Power system reliability; Power system security; Power system stability; Power transmission lines; Protective relaying; alarm processing; cascading events; fault analysis; performance analysis; protective relaying; relay testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnical Conference, 2008. MELECON 2008. The 14th IEEE Mediterranean

Conference_Location

Ajaccio

Print_ISBN

978-1-4244-1632-5

Electronic_ISBN

978-1-4244-1633-2

Type

conf

DOI

10.1109/MELCON.2008.4618531

Filename

4618531