Analytical Formulas for Induced Surges on a Long Overhead Line Caused by Lightning With an Arbitrary Channel Inclination

This paper presents analytical formulas for lightning-induced surges (voltage and current) on an infinite length of overhead line, which are generated by a nearby lightning stroke with arbitrary striking angle. The formulas are derived using the Rusck model, which is one of the electromagnetic coupl...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2009-08, Vol.51 (3), p.733-740
Main Authors: Matsubara, I., Sekioka, S.
Format: Article
Language:English
Subjects:
Applied sciences
Approximation
Channels
Data mining
Electric potential
Electrical engineering. Electrical power engineering
Electrical power engineering
Electromagnetic compatibility
Electromagnetic coupling
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Equations
Exact sciences and technology
inclined lightning channel
Information, signal and communications theory
Lightning
lightning-induced surges
Mathematical analysis
Mathematical model
Mathematical models
Miscellaneous
Overhead networks
overvoltage protection
power distribution line
Power networks and lines
return stroke
Return strokes (lightning)
Surges
Telecommunications and information theory
Voltage
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Description
Summary:This paper presents analytical formulas for lightning-induced surges (voltage and current) on an infinite length of overhead line, which are generated by a nearby lightning stroke with arbitrary striking angle. The formulas are derived using the Rusck model, which is one of the electromagnetic coupling models based on a transmission-line approximation of a return stroke. The return-stroke current is approximated by piecewise linearly varying characteristics. The formulas are simple and convenient for lightning-induced effect analysis. The analytical formulas are validated by the comparison with a finite-difference method. The paper proposes approximate formulas of peak value and time to peak value of the lightning-induced voltages for a vertical lightning channel.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2009.2025901