One End Fault Location Algorithm for TCSC Compensated Transmission Lines.

Autor: DINE, Mohamed, SAYAH, Rafik, SAYAH, Houari
Předmět:
Zdroj: Electrotehnica, Electronica, Automatica; apr-jun2017, Vol. 65 Issue 2, p86-94, 9p
Abstrakt: This paper introduces a new simple fault location algorithm, based on the measurement of instantaneous 3-phase voltage and current signals, from one end of the transmission line, to estimate the location of a fault in thyristor controlled series capacitor (TCSC) compensated transmission lines. The algorithm makes use of two subroutines for estimation of the fault distance—one for fault behind the TCSC and another one for fault in front of the TCSC. Then a special procedure to select the correct solution is utilized. This algorithm requires estimation of three-phase voltage drops across capacitors bank. For this purpose, a nonlinear differential equation is solved on-line using a novel, numerically efficient algorithm. The other interest of this algorithm is independent of fault resistance and does not require any knowledge of source impedance. The proposed approach was tested via digital simulation using MATLAB. Applied test results corroborate the superior performance of the proposed approach. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index