Title :
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
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;
Conference_Titel :
Power System Technology (POWERCON), 2014 International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/POWERCON.2014.6993963
