Title :
Prediction method for preventing reclosing on permanent fault of shunt compensated EHV/UHV transmission lines
Author :
Zengping, Wang ; Haofang, Liu ; Yan, Xu ; Jing, Ma ; Junling, Liu
Author_Institution :
Key Lab. of Power Syst. Protection, North China Electr. Power Univ., Baoding
Abstract :
A criterion is proposed to distinguish between temporary and permanent faults of shunt compensated EHV/UHV transmission lines. Its compensation criterion is established. In order to improve its sensitivity when resonant frequency is high. The performance of the criterion and its compensation criterion is hardly influenced by fault distance, fault earth resistance and the currents of healthy phases. The criterion and its compensation criterion can distinguish between temporary and permanent faults effectively and quickly. Simulation tests show that the conclusions in this paper are correct
Keywords :
fault currents; power transmission faults; prediction theory; fault currents; fault distance; fault earth resistance; permanent fault; prediction method; resonant frequency; sensitivity improvement; shunt compensated EHV-UHV transmission lines; Capacitance; Inductors; Power system stability; Power transmission lines; Prediction methods; Resonance; Resonant frequency; Shunt (electrical); Transmission lines; Voltage; permanent fault; power frequency component; resonant component; resonant frequency; shunt compensated EHV/UHV transmission lines; single-phase reclosing; temporary fault;
Conference_Titel :
Power Engineering Society General Meeting, 2006. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0493-2
DOI :
10.1109/PES.2006.1709611
