Title :
Study on Compensation for Secondary Arc Current on UHV Double-Circuit Lines
Author :
Chen, Lei ; Liu, Haijun ; Wu, Ming ; Wei, Delin ; Niu, Meng
Author_Institution :
China Electr. Power Res. Inst., China EPRI Sci. & Technol. CO. Ltd., Beijing, China
Abstract :
This paper discusses theory of secondary arc current on UHV double-circuit lines and introduces 2 compensation schemes: the neutral reactors of shunt reactor compensation and high-speed grounding switches. Using a practical UHV double-circuit line as an example, the mathematical model based on the practical parameters has been built using PSCAD/EMTDC. When the model utilizes 2 compensation schemes respectively, the secondary arc current is carried out in the case of different fault types. By synthetically comparing and analyzing, the neutral reactors of shunt reactor compensation are more suitable for UHV lines which have no transposition.
Keywords :
arcs (electric); compensation; earthing; power overhead lines; power system CAD; power transmission faults; reactors (electric); switchgear; PSCAD/EMTDC simulation; UHV double-circuit line; high-speed grounding switch; mathematical model; neutral reactor; secondary arc current; shunt reactor compensation; Circuit faults; Fault location; Grounding; Inductors; Integrated circuit modeling; Power transmission lines; Shunt (electrical);
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6253-7
DOI :
10.1109/APPEEC.2011.5748939
