Proceedings ArticleDOI
Modern computational methods for the design and analysis of power system grounding
J. Ma,F.P. Dawalibi +1 more
- Vol. 1, pp 122-126
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TLDR
In this article, a few methods used in power system grounding analysis and illustrates the advantages, limitations and the applicability of these methods are presented and compared the various cases modeled in this paper include grounding networks of different sizes, grounding networks with buried metallic structures such as steel pipes, and high frequency cases.Abstract:
This paper examines a few methods used in power system grounding analysis and illustrates the advantages, limitations and the applicability of these methods. Computation results using these methods are presented and compared the various cases modeled in this paper include grounding networks of different sizes, grounding networks with buried metallic structures, such as steel pipes, and high frequency cases. The discussions and conclusions given in this paper can be used as a reference when deciding which method should be used to carry out an accurate and efficient grounding analysis.read more
Citations
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Journal ArticleDOI
A novel mathematical modeling of grounding system buried in multilayer Earth
TL;DR: In this article, a novel mathematical model for accurately computing the currents flowing along the high-voltage ac substations' grounding system and floating metallic conductors buried in the multilayer earth model has been developed.
Journal ArticleDOI
Simulation of substation grounding grids with unequal-potential
TL;DR: In this article, a method of forming the equation system for simulating substation grounding grids with unequal-potential, i.e., the potential drop caused by the interior resistance of conductors is taken into account, is presented, based on a theory of combination of field and circuit.
Journal ArticleDOI
Numerical simulation grounding system buried within horizontal multilayer earth in frequency domain
Zhong-Xin Li,Wei-Jiang Chen +1 more
TL;DR: In this article, a novel mathematical model for accurately calculating the currents flowing along the conductors of grounding system below high voltage a.c. substations and nearby floating metallic structure buried in horizontal multilayer earth model has been developed.
Journal ArticleDOI
Multilayer Earth Structure Approximation by a Homogeneous Conductivity Soil for Ground Return Impedance Calculations
TL;DR: In this paper, a technique to approximate a multi-layer earth structure by a homogeneous conductivity soil in ground return impedance calculations is proposed, which can be used with reasonable accuracy in a simpler expression or in commonly available EMTP software, such as the Line Constants routine of the Alternative Transients Program (ATP).
Journal ArticleDOI
A Mathematical Model for the Transient Lightning Response from Grounding Systems
TL;DR: In this paper, the authors proposed a hybrid of Galerkin's method of moment (MoM) and a conventional nodal analysis method to calculate the distribution of both branch and leakage currents along the grounding system.
References
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Journal ArticleDOI
Integrated analysis software for grounding, EMF, and EMI
F.P. Dawalibi,F. Donoso +1 more
TL;DR: The CDEGS software package as discussed by the authors includes three input processors, six engineering applications modules, and six output processors for current distribution, electromagnetics, grounding, and soil structure analysis.
Journal ArticleDOI
Transient performance of substation structures and associated grounding systems
F.P. Dawalibi,Wei Xiong,Jinxi Ma +2 more
TL;DR: In this article, the frequency and time domain performance of a substation subjected to a lightning strike is described and discussed graphically as a function of spatial coordinates, including scalar potentials, electric fields, and magnetic fields.