Calculation of switching transients with particular reference to line energisation

Bickford, J.P.; Doepel, P.S.

doi:10.1049/piee.1967.0099

Cited by 27 publications

(3 citation statements)

References 4 publications

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“…The first of these techniques is based on the theory of natural modes and the modified Fourier transform, 1 ' 9 and'the second is that of the Bewley lattice method. 3 ' 9 The voltage and current waveforms, having been obtained, may then be processed to yield frequency spectra. The second objective of the paper is to show how these spectra, obtained by use of the piecewise synthesis technique, 2 may be used to compare the results obtained from the modified Fourier transform and the Bewley lattice methods.…”

Section: Introductionmentioning

confidence: 99%

Developments in the calculation of waveforms and frequency spectra for transient fault currents and voltages

Bickford

Sanderson

Abdelsalem

et al. 1980

IEE Proc. C Gener. Transm. Distrib. UK

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The application of the modified Fourier transform and the Bewley lattice methods to the calculation of transient fault currents and voltages in power system networks is demonstrated. The results obtained using these techniques are compared and discussed on the basis of both waveform and frequency spectra. It is concluded that both methods are capable of yielding acceptable and near identical results.

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Section: Introductionmentioning

confidence: 99%

Developments in the calculation of waveforms and frequency spectra for transient fault currents and voltages

Bickford

Sanderson

Abdelsalem

et al. 1980

IEE Proc. C Gener. Transm. Distrib. UK

Self Cite

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“…State equations are formulated from the lumped parameter representation of transmission line. Numerical integration solutions for lumpedparameter transmission line model are available in the literature [7][8][9], but, in this study explicit formulas are used to solve these equations. This way starting from the initial state and initial time the state of the system at any time can be calculated directly without the need of the computations between that time and the initial time.…”

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Some Renovations in Transient Analysis of Transmission Lines by State-Space Techniques

Mamiş

Köksal

1996

MCA

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A method for transient analysis of single phase transmission lines based on state-space technique is presented. Transmission lines are considered as the interconnection of many lumped parameter sections. By this approach state equations are formulated for the system by choosing the capacitor voltages and inductor currents as the state variables. These equations are solved by state space techniques to compute steady-state and transient responses of transmission lines for various source and load connections. A computer program called LPTLAP (Lumped Parameter Transmission Line Transient Analysis Program) has been prepared for both formulation and solution steps.

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“…Porém, neste tipo de processamento os componentes concentrados (tais como transformadores, reatores, banco de capacitores, resistores) também devem ser representados por circuitos distribuídos. O diagrama de Lattice também é usado em [Bickford and Doepel (1967)], onde o sistema a ser analisado consiste de duas partes, sendo uma delas (que deve ser linear) representada pela resposta ao degrau. Em [Kalra and Stanek (1973)] é apresentada uma técnica baseada no princípio da superposição, que usa resposta degrau para calcular as tensões transitórias aplicando a técnica de Lattice.…”

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Modelo reduzido de linhas de transmissão para transitorios eletromagneticos

Paz¹

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ResumoO objetivo deste trabalho é contribuir para o estudo de linhas de transmissão e o desenvolvimento de modelos de linhas voltados a programas do tipo EMTP. O trabalho desenvolvido consiste em aproveitar as propriedades e semelhanças dos modos não homopolares de propagação das linhas de transmissão, sejam elas idealmente transpostas ou que apresentem plano de simetria vertical. Por meio de manipulações da matriz de transformação fase-modo-fase através do uso de vetores ortogonais e elementos complexos no domínio modal, pode-se reduzir a dimensão dos vetores de estado. O procedimento proposto é direcionado às modelagens que utilizam transformação fase-modo-fase na determinação das variáveis de estado (corrente e tensão) nas linhas de transmissão. Os recursos usados levam a uma redução tanto em número de operações por iteração quanto em alocação de estados, otimizando o procedimento de cálculo e aumentando a velocidade de simulação no processamento. A economia computacional que o procedimento proposto proporciona pode ser usada em ferramentas de simulação em tempo real.

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Calculation of switching transients with particular reference to line energisation

Cited by 27 publications

References 4 publications

Developments in the calculation of waveforms and frequency spectra for transient fault currents and voltages

Developments in the calculation of waveforms and frequency spectra for transient fault currents and voltages

Some Renovations in Transient Analysis of Transmission Lines by State-Space Techniques

Modelo reduzido de linhas de transmissão para transitorios eletromagneticos

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