Title :
Modeling of Lightning Shielding Failure in UHV Transmission Line Based on Randomness Theory
Author :
Fu, Jin ; Yang, Qing ; Sima, Wenxia ; Li, Jianbiao ; Xie, Bo
Author_Institution :
State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing, China
Abstract :
The operation data obtained abroad indicates that shielding failure in AC UHV transmission system mostly accounts for the tripping-out accidents introduced by lightning striking the transmission line. Based on the discharge theories of long air gap and randomness theory, a leader progression model of lightning shielding failure is presented in this paper. The simulation results shows the good agreement between this model and the field data.
Keywords :
air gaps; lightning protection; power transmission lines; power transmission protection; random processes; UHV transmission lines; air gaps; leader progression model; lightning shielding failure; randomness theory; tripping-out accidents; Atmospheric modeling; Conductors; Lightning protection; Power overhead lines; Power system modeling; Power transmission lines; Transmission line theory; Transmission lines; Voltage; Wire; Leader progression; Lightning shielding; Randomness; Transmission line;
Conference_Titel :
High Voltage Engineering and Application, 2008. ICHVE 2008. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-3823-5
Electronic_ISBN :
978-1-4244-2810-6
DOI :
10.1109/ICHVE.2008.4773934
