Using a coupled transmission line network approach to calculate the transient current in lightning protection system of a Pratt Truss Bridge

Author

Yan Zhang ; Fugui Liu ; Youhua Wang ; Rongmei Liu ; Yanan Li

Author_Institution

Province-Minist. Joint Key Lab. of Electromagn. Field & Electr. Apparatus Reliability, Hebei Univ. of Technol., Tianjin, China

fYear

2014

fDate

11-18 Oct. 2014

Firstpage

1396

Lastpage

1399

Abstract

In this paper, a coupled transmission line network approach is applied to evaluate the transient surge current distribution in lightning protection system (LPS) of Pratt Truss Bridge. The LPS model is based on the transmission line network in the frequency domain combined with the Fast Fourier transform (FFT) technique, and the coupling effects of the LPS are taken into account by adding a set of lumped voltage sources along the transmission line. The validation of the proposed approach is performed by comparing with the result calculated by EMTP. The comparison shows the accuracy and efficiency of the coupled transmission line network approach in the range of application of LPS of Pratt Truss Bridge.

Keywords

coupled transmission lines; fast Fourier transforms; lightning protection; EMTP; LPS model; Pratt truss bridge; coupled transmission line network approach; fast Fourier transform; lightning protection system; transient surge current distribution; transmission line network; Computational modeling; EMTP; Transforms; Transient analysis; Lightning protection system (LPS); Pratt Truss Bridge; coupled transmission line model; transient surge current distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Lightning Protection (ICLP), 2014 International Conference o

Conference_Location

Shanghai

Type

conf

DOI

10.1109/ICLP.2014.6973349

Filename

6973349