Accurate fault location algorithm for series compensated transmission lines

Author

Sadeh, Javad ; Hadjsaid, N. ; Ranjbar, A.M. ; Feuillet, R.

Author_Institution

Lab. d´´Electrotech. de Grenoble, Saint Martin d´´Heres, France

Volume

15

Issue

3

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1027

Lastpage

1033

Abstract

In this paper, an accurate fault location algorithm for series compensated power transmission lines is presented. A distributed time domain model is used for modeling of the transmission lines. The algorithm makes use of two subroutines for estimation of the fault distance-one for faults behind the series capacitors and another one for faults in front of the series capacitors. Then a special procedure to select the correct solution is utilized. Samples of voltages and currents at both ends of the line are taken synchronously and used to calculate the location of the fault. The proposed algorithm is independent of fault resistance and does not require any knowledge of source impedance. The proposed method has been tested using the EMTP/ATP model of a 100 kV, 300 km transmission line, which is compensated, by a three-phase capacitor bank in the middle. The results of computer simulation confirm the accuracy of the proposed method

Keywords

capacitor storage; compensation; fault location; power capacitors; power transmission faults; power transmission lines; 100 kV; 300 km; EMTP/ATP model; MOV protected series capacitor; computer simulation; distributed time domain model; fault distance estimation; fault location algorithm; series capacitors; series compensated transmission lines; three-phase capacitor bank; Capacitors; Circuit faults; Fault location; Power system faults; Power system modeling; Power system reliability; Power system transients; Power transmission lines; Transmission lines; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.871370

Filename

871370