Novel method for analyzing the transient behavior of grounding systems based on the finite-difference time-domain method

Tanabe, Kazuo

doi:10.1109/pesw.2001.917230

Cited by 30 publications

(27 citation statements)

References 9 publications

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“…Fig. 5 shows the numerical results obtained by the simulator developed in this work and the results obtained in (Tanabe, 2001) According to (Mattos, 2004), the influence of the diameter of the conductors is negligible for the steady grounding resistance R (0.0 Hz), which is given by the equation…”

Section: Software Applicationsmentioning

confidence: 92%

“…Analysis of a rectangular grounding system. In order to validate the implementation of the parallel numerical algorithm previously described, the transient responses of a rectangular electrode due the application of a artificial lighting current, originally proposed and analyzed by (Tanabe, 2001) were calculated. The geometry is illustrated by Fig.…”

Section: Software Applicationsmentioning

confidence: 99%

“…meters away from the tower. The simulations were carried out by considering the following parameters: numerical volume: 250x70x100 m by using cubic Yee cells with edges of 0.5 m; ground parameters:  = 50 0 and  = 2 mS/m; insulator parameters: the insulator modeled has 1.0 m of height with the electrical conductivity of 10 -11 S/m and relative electrical permittivity of 7.5; excitation source: the same used previously (Tanabe, 2001). The lighting discharge was included into the analysis domain by creating a vertical conductor, which penetrates the field absorbing boundary region (UPML) at its top (with impedance matching), representing an infinitely long conductor.…”

Section: Transmission Line Tower and Induced Voltages On Line Insumentioning

confidence: 99%

“…It is widely known that the Finite-Difference Time-Domain (FDTD) method is adequate for solving numerically Maxwell's Equations in order to obtain accurate transient solutions regarding lighting discharges occurring in the vicinity or on power systems (Tanabe, 2001;Oliveira & Sobrinho 2009]. These lighting pulses can produce considerable power in bands 7.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Applications of the Parallel-LN-FDTD Method to Calculating Transient EM Field in Complex Power Systems

Oliveira¹,

Leite²,

Filho³

et al. 2010

Modelling, Simulation and Identification

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The present work shows the results of a R&D project carried out by ELETRONORTE and by the Federal University of Pará (UFPA). Its core objective is the development of a computational system, called LANE-MAXWELL, for performing analysis and synthesis involving electromagnetic interference (EMI) in a power system substation environment. For the analysis stage, the numerical solution of the problem is obtained by numerically solving the Maxwell's equations written in a local non-orthogonal coordinate system by employing the Non-orthogonal Curvilinear Finite-Difference Time-Domain Method (LN-FDTD). The truncation of the analysis region is done by a new formulation called LN-UPML which involves the solution of the Maxwell Equations for lossy anisotropic media in a general coordinate system. For the synthesis stage, techniques such as neural networks, genetic algorithms and particle swarm optimization are used. The computational environment conceived has a friendly data input/output interface for the user, which permits a better understanding of the electromagnetic phenomena involved. For illustrate the versatility of the computational environment some practical applications involving complex power systems structures are presented.

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Section: Software Applicationsmentioning

confidence: 92%

Section: Software Applicationsmentioning

confidence: 99%

Section: Transmission Line Tower and Induced Voltages On Line Insumentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Applications of the Parallel-LN-FDTD Method to Calculating Transient EM Field in Complex Power Systems

Oliveira¹,

Leite²,

Filho³

et al. 2010

Modelling, Simulation and Identification

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show abstract

“…Some of the earliest reports on applying it to electric power apparatus were published by Tanabe, which discussed the electromagnetic field propagation in soil from a buried vertical rod when a lightning surge was imposed (Tanabe 2000, Tanabe 2001. As the calculation power of PCs has dramatically increased since early 2000, many reports and papers on surge analysis using the FDTD method have been published, especially by Japanese researchers.…”

Section: Applications Of the Fdtd Methods For Lightning Protection Of mentioning

confidence: 99%

Electromagnetic Calculation of a Wind Turbine Earthing System

Yasuda¹,

Fujii²

2011

Wind Turbines

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Impulse Characteristics of Grounding Devices

2012

Methodology and Technology for Power System Grounding

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Novel method for analyzing the transient behavior of grounding systems based on the finite-difference time-domain method

Cited by 30 publications

References 9 publications

Applications of the Parallel-LN-FDTD Method to Calculating Transient EM Field in Complex Power Systems

Applications of the Parallel-LN-FDTD Method to Calculating Transient EM Field in Complex Power Systems

Electromagnetic Calculation of a Wind Turbine Earthing System

Impulse Characteristics of Grounding Devices

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