An Interphase Distance Relaying Algorithm for Series-Compensated Transmission Lines

Author

Xu, Z.Y. ; Su, Z.P. ; Zhang, J.H. ; wen, aijun ; Yang, Q.X.

Author_Institution

Sch. of Electr. Electron. Eng., North China Electr. Power Univ., Beijing, China

Volume

29

Issue

2

fYear

2014

fDate

Apr-14

Firstpage

834

Lastpage

841

Abstract

A new interphase distance relaying algorithm for series-compensated transmission lines is proposed in this paper. The fault impedance can be correctively calculated using the proposed algorithm without requirement of the parameters of series capacitor device. The series capacitor can be simplified as a linearized impedance during the fault period, but its parameters can be used as variables in fault loop equations. The real-time digital simulator tests show that the proposed algorithm can obtain more accurate results than other traditional distance relaying algorithms for series-compensated transmission lines.

Keywords

power capacitors; power transmission faults; power transmission lines; power transmission protection; relay protection; fault impedance; fault loop equations; interphase distance relaying algorithm; linearized impedance; real-time digital simulator tests; series capacitor; series-compensated transmission; Algorithm design and analysis; Capacitors; Circuit faults; Impedance; Power transmission lines; Relays; Transmission line measurements; Distance relay; interphase faults; series-compensated transmission lines;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2013.2281067

Filename

6612758