Title :
Study on Transient Characteristics and its Impact on Protection of 1000kV Transmission Line Based on Marti Model
Author :
Yan Qiao ; Chen Qing
Author_Institution :
Electr. Eng. Sch., Shandong Univ., Jinan, China
Abstract :
When traveling wave analysis based on Marti model are employed for transient analysis, frequency-dependent line parameters are taken into account, so that calculating results would be more accurate. On the basis of original parameters provided by State Grid Corporation, Marti model of the 1000 kV UHVAC power transmission demonstration project are built in this paper. The transient characteristics such as the distributed capacitive current in transient state, high-frequency harmonics, and their impact on relay protection are mainly calculated and analyzed. It is expected that it can be helpful for relay protection design and manufacture in UHV transmission lines.
Keywords :
power grids; power system harmonics; power system transients; power transmission lines; relay protection; Marti model; State Grid Corporation; UHV transmission lines; UHVAC power transmission; frequency-dependent line parameters; high-frequency harmonics; relay protection; transient analysis; traveling wave analysis; voltage 1000 kV; Frequency; Harmonic analysis; Manufacturing; Power system transients; Power transmission; Power transmission lines; Protection; Protective relaying; Transient analysis; Transmission lines;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5449011
