Title :
A new tool for lightning performance assessment of overhead transmission lines
Author :
Xie, Yaoheng ; Dong, Manlin ; He, Hengxin ; He, Junjia ; Cai, Hansheng ; Chen, Xipeng
Author_Institution :
State Key Lab. of Adv. Electromagn., Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A new tool has been developed for the evaluation of the lightning performance of overhead transmission lines. The tool can take into account actual ground flash density distribution along line corridor, cumulative probability function of the lightning current, geometric parameters, insulator string configuration and the topography for each tower of the entire line, etc. Moreover, the tool incorporates several lightning attachment models and a method of ATP-based automated simulation for lightning surge analysis. An application to a typical 500 kV double circuit line of the Chinese transmission system shows that it is convenient for estimating the lightning performance of a total line and studying the effects of different models and criteria on the lightning performance of the line.
Keywords :
earthing; higher order statistics; lightning protection; performance evaluation; power overhead lines; power system simulation; surge protection; ATP-based automated simulation; Chinese transmission system; cumulative probability function; double circuit line; geometric parameters; ground flash density distribution; insulator string configuration; lightning attachment model; lightning current; lightning performance assessment tool; lightning performance evaluation; lightning surge analysis; line corridor; overhead transmission lines; tower topography; voltage 500 kV; Flashover; Insulators; Integrated circuit modeling; Lightning; Poles and towers; Power transmission lines; Voltage control; Ground flash density distribution; Lightning attachment models; Lightning performance; Lightning surge; new assessment tool;
Conference_Titel :
Lightning (APL), 2011 7th Asia-Pacific International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4577-1467-2
DOI :
10.1109/APL.2011.6110179
