FEM analysis of electromagnetic transients in linear networks

Lucić, Rino; Jurić-Grgić, Ivica; Jović, Vinko

doi:10.1002/etep.268

Cited by 7 publications

(12 citation statements)

References 12 publications

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“…These works propose the use of different numerical methods for solving the differential equation. Like using π-circuits [10], the modal method [11], the finite difference method (FDTD) [12], the finite element method [13], the time-step integration method [14], and others [4]. All these works bring useful transmission lines models, but all these resolution methods require, in a greater or lesser extent, numerical approximations to solve the differential equation.…”

Section: Line Model Foundationsmentioning

confidence: 99%

Time-Domain Distributed Parameters Transmission Line Model for Transient Analysis

Andrade

Leite²,

Leao³

2013

PIER B

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Abstract-This article describes a time-domain transmission line model based on distributed parameters for transient analysis. This model is based directly on the differential equations for the basic transmission line without any previous simplification. The solution presented here for these differential equations results in a more detailed time-domain model than others models currently in use, and with certain structural similarities with the distributed parameter frequency-domain model for long transmission lines. The deduction of a general time-domain transmission line model for fundamental frequencies parameters and single-phase line are presented in this article, but the model can also be extended to cases with multiconductor and frequency-depended parameters. In order to validate the model, a comparative test is presented to facilitate the analysis about the main similarities and differences between this and other models.

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Section: Line Model Foundationsmentioning

confidence: 99%

Time-Domain Distributed Parameters Transmission Line Model for Transient Analysis

Andrade

Leite²,

Leao³

2013

PIER B

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“…So far the procedure for the nonlinear analysis of TL problem was identical to the procedure applied to the linear case [8]. As it was mentioned previously, some method for nonlinear analysis has to be applied in order to define the local FE system of equations to be assembled into the global system.…”

Section: Nonlinear Transmission Line Finite Elementmentioning

confidence: 99%

“…In Reference [8] it was shown how to apply the FEM to the linear networks with frequency independent distributed and/or lumped parameters. In a case when lumped and/or TL FEs are nonlinear it is necessary to apply a certain method for nonlinear analysis in order to define the local FE system of equations.…”

Section: Fem Proceduresmentioning

confidence: 99%

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FEM analysis of electromagnetic transients in nonlinear networks

Lucić¹,

Jurić-Grgić²,

Kurtović³

2008

Int Trans Elec Energy Syst

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SUMMARYThe aim of the paper is to present a numerical procedure based on the finite element method (FEM) in the time domain when modeling electromagnetic transients in a single nonlinear electrical network. It presents an extension to the FE time domain model used to analyze electromagnetic transients in linear networks. Based on the Newton-Raphson method for FEM analysis and the generalized trapezoidal rule for time integration a novel numerical procedure for the computation of electromagnetic transients in nonlinear circuits/networks is obtained.

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“…These methods are based on the expansion of some describing functions with unknown amplitudes, i.e. expansion of Taylor's series [14], expansion of Fourier series [15], and application of numerical computations, such as method of moment [16] and finite element method [17].…”

Section: Introductionmentioning

confidence: 99%

Design of Chebychev’s Low Pass Filters Using Nonuniform Transmission Lines

Attamimi

Alaydrus

2015

J. ICT Res. Appl.

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Abstract. Transmission lines are utilized in many applications to convey energy as well as information. Nonuniform transmission lines (NTLs) are obtained through variation of the characteristic quantities along the axial direction. Such NTLs can be used to design network elements, like matching circuits, delay equalizers, filters, VLSI interconnections, etc. In this work, NTLs were analyzed with a numerical method based on the implementation of method of moment. In order to approximate the voltage and current distribution along the transmission line, a sum of basis functions with unknown amplitudes was introduced. As basis function, a constant function was used. In this work, we observed several cases such as lossless and lossy uniform transmission lines with matching and arbitrary load. These cases verified the algorithm developed in this work. The second example consists of nonuniform transmission lines in the form of abruptly changing transmission lines. This structure was used to design a Chebychev's low pass filter. The calculated reflection and transmission factors of the filters showed some coincidences with the measurements.

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FEM analysis of electromagnetic transients in linear networks

Cited by 7 publications

References 12 publications

Time-Domain Distributed Parameters Transmission Line Model for Transient Analysis

Time-Domain Distributed Parameters Transmission Line Model for Transient Analysis

FEM analysis of electromagnetic transients in nonlinear networks

Design of Chebychev’s Low Pass Filters Using Nonuniform Transmission Lines

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