Title :
Research on shielding failure of UHVDC based on leader progression model
Author :
Yinan, Geng ; Chijie, Zhuang
Author_Institution :
Inst. of Nucl. & New Energy Technol., Tsinghua Univ., Beijing, China
Abstract :
Shielding failure is one of key problems of UHV transmission lines. Considering the high operating voltage and high tower of UHV transmission lines, the inception criterion of upward leader is proposed in this paper. The process of shielding failure is simulated by the method based on leader progression model and shielding failure rate is calculated. This method is verified by comparing the calculation results with the operated data of UHV transmission lines in Japan. The shielding failure characteristics of UHVDC transmission lines in China under different terrain conditions are researched.
Keywords :
HVDC power transmission; electromagnetic shielding; power transmission lines; China; Japan; UHVDC transmission lines; leader progression model; shielding failure characteristics; shielding failure rate; terrain conditions; Conductors; Heating; Lead; Lightning; UHV; critical radius; leader progression model; terrain weighting; upward leader; upward leader inception criterion;
Conference_Titel :
Lightning Protection (ICLP), 2012 International Conference on
Conference_Location :
Vienna
Print_ISBN :
978-1-4673-1898-3
Electronic_ISBN :
978-1-4673-1896-9
DOI :
10.1109/ICLP.2012.6344203
