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

fYear

2012

fDate

2-7 Sept. 2012

Firstpage

1

Lastpage

7

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICLP.2012.6344203

Filename

6344203