Title :
A Novel Bus Protection Based on Transient Energy of Voltage Traveling Wave and Current Traveling Wave
Author :
Hongchun Shu ; Yuetao Dai ; Xincui Tian
Author_Institution :
Fac. of Electr. Eng., Kunming Univ. of Sci. & Technol., Kunming, China
Abstract :
The protection based on fault transient component could overcome the disadvantages of traditional industrial frequency protection such as poor anti-CT saturation ability and long operating time.This paper presents a novel ultra high speed bus protection based on transient energy, which takes the voltage traveling wave and current traveling wave on each transmission line to calculate the energy, with the purpose of accurate identification of bus internal fault. Simulation is carried out with electromagnetic transient simulation software PSCAD/EMTDC,the simulation result verifies that the bus protection is reliable and accurate.The bus protection also can treat lightning failure or lightning disturbance happened on transmission lines as bus external fault,without malfunction.
Keywords :
busbars; lightning protection; power system transients; power transmission lines; bus external fault; bus internal fault; current traveling wave; electromagnetic transient simulation software PSCAD-EMTDC; lightning disturbance; lightning failure; novel ultrahigh speed bus protection; transient energy; transmission line; voltage traveling wave; Circuit faults; Fault diagnosis; Lightning; Power transmission lines; Simulation; Transient analysis;
Conference_Titel :
Database Technology and Applications (DBTA), 2010 2nd International Workshop on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6975-8
Electronic_ISBN :
978-1-4244-6977-2
DOI :
10.1109/DBTA.2010.5659016
