An active power filter for protective relaying at EHV line

Author

Kumar, Parmod ; Mahajan, Alka ; Singh, Bhim

Author_Institution

Dept. of Electr. Eng., Delhi Coll. of Eng., India

Volume

2

fYear

1999

fDate

36495

Firstpage

895

Abstract

Nonsinusoidal voltages and currents affect the performance of protective relays under normal as well as fault conditions. The intent of this paper is to present an active power filter for relaying operations. The active power filter provides harmonics-free voltage and current signals to the relay, thereby ensuring its designed performance. Combined shunt and series active power filters are used to filter out the voltage as well as current harmonics from the input signal to the relay. Simulation studies for a single phase to earth fault on a 220 kV transmission line have been presented

Keywords

active filters; power harmonic filters; power system harmonics; power system relaying; power transmission faults; power transmission lines; power transmission protection; relay protection; 220 kV; EHV line; active power filter; fault conditions; normal conditions; protective relaying; shunt/series active power filters; single-phase to earth fault; Active filters; Earth; Power harmonic filters; Power system harmonics; Power transmission lines; Protection; Protective relaying; Relays; Signal design; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 99. Proceedings of the IEEE Region 10 Conference

Conference_Location

Cheju Island

Print_ISBN

0-7803-5739-6

Type

conf

DOI

10.1109/TENCON.1999.818563

Filename

818563