NDLI: Lightning Surge Analysis of a Microwave Relay Station Using the FDTD Method

Content Provider	IEEE Xplore Digital Library
Author	Tatematsu, A. Yamazaki, K. Matsumoto, H.
Copyright Year	1964
Abstract	Microwave relay stations are key components in controlling power grids and maintaining their stability, but lightning strikes to the stations may cause faults, malfunctions, or even physical damage to microwave radio equipment. To protect equipment from lightning, it is necessary to predict surge phenomena in a microwave relay station, and design effective lightning protection methodologies. Recently, numerical electromagnetic field computation methods to solve Maxwell's equations have entered widespread use for analyzing surge phenomena in 3-D structures such as buildings and towers and in grounding structures such as grounding grids. In this paper, we apply the finite-difference time-domain (FDTD) method to the surge analysis of a microwave relay station. First, to validate the applicability of the FDTD method, we set up a reduced-scale model of a microwave relay station. Using this model, we measured the distribution of the currents flowing through the station and compared the measured results with those simulated by the FDTD method. Second, through FDTD-based surge simulations, we analyzed the effects of the reinforcing bars of a building, the route of the ground wire of a waveguide, and the layout of a deep earth electrode on the lightning current distribution.
Sponsorship	IEEE Electromagnetic Compatibility Society
Starting Page	1616
Ending Page	1626
Page Count	11
File Size	2804540
File Format	PDF
ISSN	00189375
Volume Number	57
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microwave theory and techniques Buildings Wires Poles and towers Microwave measurement Relays Electrodes microwave relay stations Finite difference time-domain (FDTD) method grounding structures lightning
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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Finite-Difference Time-Domain Simulation of Towers Cascade Under Lightning Surge Conditions

Applying FDTD Simulation to Lightning Surge Route Analysis in Microwave Relay Stations

FDTD Computation of Lightning-Induced Voltages on Multiconductor Lines With Surge Arresters and Pole Transformers

Applications of the FDTD Method to Lightning Electromagnetic Pulse and Surge Simulations

Mutual Influence of a Deeply Buried Grounding Electrode and the Surrounding Grounding Mesh

Finite difference time domain simulation of lightning transient electromagnetic fields on transmission lines

FDTD Simulation of Lightning Surges on Overhead Wires in the Presence of Corona Discharge

Application of the TLM Method to Transient Simulations of a Conductor System With a Lossy Ground: Grounding Electrodes and an Overhead Wire

A Technique for Representing Coaxial Cables for FDTD-Based Surge Simulations

Lightning Surge Analysis of a Microwave Relay Station Using the FDTD Method

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