Calculating the transient behavior of grounding systems using inverse Laplace transform

Nabiollah RAMEZANI; Mohammad SHAHRTASH

doi:10.1631/jzus.C0910777

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Calculating the transient behavior of grounding systems using inverse Laplace transform

Electrical Engineering | Updated：2022-08-31

- Calculating the transient behavior of grounding systems using inverse Laplace transform
- Calculating the transient behavior of grounding systems using inverse Laplace transform
- Frontiers of Information Technology & Electronic Engineering Vol. 12, Issue 3, Pages: 250-262(2011)
- Affiliations：
  
  1.Behshahr Branch, Iran University of Science and Technology, Behshahr 47137, Iran
  2.Center of Excellence for Power Systems Automation and Operation, Department of Electrical Engineering, Iran University of Science and Technology, Tehran 16844, Iran
- Author bio：
  
  E-mail:n_ramezani@iust.ac.ir
  shahrtash@iust.ac.ir
- Funds：
- DOI：10.1631/jzus.C0910777
  CLC：
- Received：20 December 2009，
  
  Revised：2010-12-06，
  
  Accepted：12 April 2010，
  
  Published：2011-03
- Accepted：
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Nabiollah RAMEZANI, Mohammad SHAHRTASH. Calculating the transient behavior of grounding systems using inverse Laplace transform[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(3): 250-262.
DOI：

Nabiollah RAMEZANI, Mohammad SHAHRTASH. Calculating the transient behavior of grounding systems using inverse Laplace transform[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(3): 250-262. DOI： 10.1631/jzus.C0910777.

摘要

Abstract

This paper deals with a unified and novel approach for analyzing the frequency and time domain performance of grounding systems. The proposed procedure is based on solving the full set of Maxwell’s equations in the frequency domain

and enables the exact computation of very near fields at the surface of the grounding grid

as well as far fields

by simple and accurate closed-form expressions for solving Sommerfeld integrals. In addition

the soil ionization is easily considered in the proposed method. The frequency domain responses are converted to the time domain by fast inverse Laplace transform. The results are validated and have shown acceptable accuracy.

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