Time domain analysis of grounding electrodes impulse response

Lightning protection studies require estimation of grounding systems dynamic behavior. This paper presents the results of a new methodology for calculating the lightning response of the basic component of any grounding system, the grounding electrode. Lightning strike is modeled using a double expon...

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Bibliographic Details
Published inIEEE transactions on power delivery Vol. 18; no. 2; pp. 517 - 524
Main Authors Lorentzou, M.I., Hatziargyriou, N.D., Papadias, B.C.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2003
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Dynamical systems
Electrodes
Equations
Exact solutions
Frequency
Grounding
Impulse response
Ionization
Lightning
Mathematical models
Methodology
Power system transients
Time domain analysis
Transient analysis
Transmission lines
Voltage
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Summary:Lightning protection studies require estimation of grounding systems dynamic behavior. This paper presents the results of a new methodology for calculating the lightning response of the basic component of any grounding system, the grounding electrode. Lightning strike is modeled using a double exponential time function. Closed-form mathematical formulae are used to describe current and voltage distribution along the electrode. The effect of soil ionization can be also taken into account. The proposed methodology is validated by comparison of the obtained results with experimental and simulated waveforms found in literature.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2003.809686