Transient lightning response of grounding grid buried in multilayered earth model based on dynamic sate complex image method in time domain

Author

Zhong-Xin Li ; Wei-Dong Shi ; Yu Yin

Author_Institution

High Voltage Insitiute, China Electr. Power Res. Inst., Beijing, China

fYear

2014

fDate

20-22 Oct. 2014

Firstpage

1635

Lastpage

1643

Abstract

A novel mathematical model has been developed in this paper, which can be used for accurately computing the lightning current flowing along the high voltage a.c. substations´ grounding grid buried in multilayered earth model. To accelerate the calculation, dynamic state complex image method and closed form of Green´s function in time domain were introduced into this model. The model can be used for study performance of transient lightning response to grounding grid.

Keywords

Green´s function methods; earthing; lightning protection; substation protection; time-domain analysis; Green function; dynamic sate complex image method; grounding grid; high voltage ac substation; lightning current; multilayered earth model; time domain; transient lightning response; Earth; Green´s function methods; Grounding; Lightning; Mathematical model; Niobium; Time-domain analysis; Closed form of Green´s function; Dynamic state complex image method; Galerkin´s Moment methods; Grounding system; Multilayered earth model; Nodal analysis; lightning currents;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology (POWERCON), 2014 International Conference on

Conference_Location

Chengdu

Type

conf

DOI

10.1109/POWERCON.2014.6993963

Filename

6993963