مقاله A New Traveling Wave Fault Location Algorithm in Series Compensated Transmission Line با word
مقاله A New Traveling Wave Fault Location Algorithm in Series Compensated Transmission Line با word دارای 6 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است
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سال انتشار: 1392
محل انتشار: بیست و یکمین کنفرانس مهندسی برق ایران
تعداد صفحات: 6
چکیده:
Series capacitors (SCs) are installed on long transmission lines to reduce the inductive reactance of lines. This makes it appear electrically shorter and increases thepower transfer capability. Series capacitors and their associated over-voltage protection devices (typically Metal Oxide Varistors(MOVs), and/or air gaps) create several problems for protection relays and fault locators including voltage and/or current inversion, sub-harmonic oscillations, transients caused by theair-gap flashover and sudden changes in the operating reach. In this paper, an accurate fault location algorithm for seriescompensated power transmission lines is presented. With using voltage and current traveling waves and placement of a faultlocator in the middle of transmission line near the SCs, location of faults is calculated with high accuracy also proposed algorithm needs no communication link and uses only localsignals and because of using of traveling wave polarity have no problem for detecting of reflected waves and therefore it solvesproblems caused by one end traveling wave based fault location methods. A simple power system containing a compensatedtransmission line is simulated on PSCAD/EMTDC software and fault location algorithm is implemented on MATLAB environment using wavelet transformer.