Multimode wave theory application to the analysis of very fast transients in lossless systems

A. S. Farag; Ya Ping Du; F. Wang; T. C. Cheng

doi:10.1016/S0378-7796(96)01073-5

Multimode wave theory application to the analysis of very fast transients in lossless systems

A. S. Farag, Ya Ping Du, F. Wang, T. C. Cheng

Research output: Journal article publication › Journal article › Academic research › peer-review

Abstract

This paper presents a new method of analyzing very fast transients in power systems by including the higher modes in the wave propagation analysis which, if ignored, can lead to erroneous results. A characteristic matrix is introduced to characterize the mode reflections and couplings to replace the scalar reflection and transmission coefficients used in the conventional traveling wave method. A sample transient calculation is carried out for a lossless coaxial cable terminated with a circular waveguide which shows the necessity to consider higher modes in very fast transient studies. The proposed approach also applies to more complicated structures such as gas insulated substations.

Original language	English
Pages (from-to)	25-32
Number of pages	8
Journal	Electric Power Systems Research
Volume	38
Issue number	1
DOIs	https://doi.org/10.1016/S0378-7796(96)01073-5
Publication status	Published - 1 Jul 1996
Externally published	Yes

Keywords

Electromagnetic waves
Lossless power systems
Substations
Switchgear
Transmission coefficients
Very fast transients

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

More information

10.1016/S0378-7796(96)01073-5

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title = "Multimode wave theory application to the analysis of very fast transients in lossless systems",

abstract = "This paper presents a new method of analyzing very fast transients in power systems by including the higher modes in the wave propagation analysis which, if ignored, can lead to erroneous results. A characteristic matrix is introduced to characterize the mode reflections and couplings to replace the scalar reflection and transmission coefficients used in the conventional traveling wave method. A sample transient calculation is carried out for a lossless coaxial cable terminated with a circular waveguide which shows the necessity to consider higher modes in very fast transient studies. The proposed approach also applies to more complicated structures such as gas insulated substations.",

keywords = "Electromagnetic waves, Lossless power systems, Substations, Switchgear, Transmission coefficients, Very fast transients",

author = "Farag, \{A. S.\} and Du, \{Ya Ping\} and F. Wang and Cheng, \{T. C.\}",

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AU - Farag, A. S.

AU - Du, Ya Ping

AU - Wang, F.

AU - Cheng, T. C.

PY - 1996/7/1

Y1 - 1996/7/1

N2 - This paper presents a new method of analyzing very fast transients in power systems by including the higher modes in the wave propagation analysis which, if ignored, can lead to erroneous results. A characteristic matrix is introduced to characterize the mode reflections and couplings to replace the scalar reflection and transmission coefficients used in the conventional traveling wave method. A sample transient calculation is carried out for a lossless coaxial cable terminated with a circular waveguide which shows the necessity to consider higher modes in very fast transient studies. The proposed approach also applies to more complicated structures such as gas insulated substations.

AB - This paper presents a new method of analyzing very fast transients in power systems by including the higher modes in the wave propagation analysis which, if ignored, can lead to erroneous results. A characteristic matrix is introduced to characterize the mode reflections and couplings to replace the scalar reflection and transmission coefficients used in the conventional traveling wave method. A sample transient calculation is carried out for a lossless coaxial cable terminated with a circular waveguide which shows the necessity to consider higher modes in very fast transient studies. The proposed approach also applies to more complicated structures such as gas insulated substations.

KW - Electromagnetic waves

KW - Lossless power systems

KW - Substations

KW - Switchgear

KW - Transmission coefficients

KW - Very fast transients

UR - https://www.scopus.com/pages/publications/0030182177

U2 - 10.1016/S0378-7796(96)01073-5

DO - 10.1016/S0378-7796(96)01073-5

M3 - Journal article

SN - 0378-7796

VL - 38

SP - 25

EP - 32

JO - Electric Power Systems Research

JF - Electric Power Systems Research

IS - 1

ER -

Multimode wave theory application to the analysis of very fast transients in lossless systems

Abstract

Keywords

ASJC Scopus subject areas

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