Title :
Development and implementation of a variable-window algorithm for high-speed and accurate digital distance protection
Author :
Xia, Y.Q. ; Li, K.K.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
7/1/1994 12:00:00 AM
Abstract :
The paper describes a new variable-window algorithm suitable for microprocessor-based high-speed distance protection. It is designed to calculate the apparent impedance while the data window is increased to a desired size after fault occurrence. High-frequency and DC transient characteristics are extensively investigated. The results of real-time testing show the improved performance in both operating time and reach accuracy
Keywords :
digital simulation; electric impedance; microcomputer applications; power system analysis computing; power system protection; power system transients; relay protection; DC transient characteristics; apparent impedance calculation; digital distance protection; high-frequency characteristics; microprocessor-based high-speed distance protection; operating time; power systems; reach accuracy; real-time testing; variable-window algorithm;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings-
DOI :
10.1049/ip-gtd:19949963
