Application of nonuniform-line theory to the simulation of electromagnetic transients in power systems

Al-Fuhaid, A.S.; Oufi, E.A.; Saied, M.M.

doi:10.1016/s0142-0615(97)00043-4

Cited by 7 publications

(7 citation statements)

References 6 publications

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“…1, in each direction of an -phase line. If is the factor relating the output to the input vector, then the first equation in (1) becomes (6) We thus see that a wave pattern or modeshape is an eigenvector of the matrix in (6) and the corresponding eigenvalue represents the propagation (transfer) function over the length of the line.…”

Section: B Propagationmentioning

confidence: 99%

“…The new concepts developed in the paper are illustrated below (in addition to the numerical results for a single frequency given in Appendix D) by showing the main variables characteristic for propagation as a function of frequency, in order to assess the differences with respect to a UL. The line parameters and the phase domain frequency dependent matrices and are calculated using simple (but highly accurate) expressions based on the concept of complex penetration depth, as described in [6] and [9].…”

Section: Illustrative Examplementioning

confidence: 99%

“…Presently, the usual practical way for handling such components is to subdivide them into sufficiently short segments so that each could then be modeled as a line with parallel conductors [4], [5] or as an exponential line [3], [6]. The great advantage of this approach is that it permits the inclusion of nonlinear branches needed, for example, in the modeling of corona.…”

Section: Introductionmentioning

confidence: 99%

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Some frequency domain aspects of wave propagation on nonuniform lines

Semlyen

2003

IEEE Trans. Power Delivery

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Nonuniform line (NL) is the designation of a transmission line segment where the conductors are not parallel or where the sag is significant. In addition, transformers and also parts of metallic towers can be viewed as NLs.In this paper, the propagation characteristics of NLs are examined. They appear as generalizations of concepts from uniform transmission lines (ULs). It was found that an -conductor NL has pairs of modes and the forward and backward waves of a mode have the same propagation constants. However, the modeshapes defined by the voltages and currents of a given mode are different. For illustration, the variation with frequency of these propagation characteristics has been presented for the wide-span river crossing of an overhead transmission line.

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Section: B Propagationmentioning

confidence: 99%

Section: Illustrative Examplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Some frequency domain aspects of wave propagation on nonuniform lines

Semlyen

2003

IEEE Trans. Power Delivery

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Section: B Propagationmentioning

confidence: 99%

Section: Illustrative Examplementioning

confidence: 99%

Some Frequency Domain Aspects of Wave Propagation on Nonuniform Lines

Semlyen¹

2002

IEEE Power Eng. Rev.

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Nonuniform line (NL) is the designation of a transmission line segment where the conductors are not parallel or where the sag is significant. In addition, transformers and also parts of metallic towers can be viewed as NLs. In this paper, the propagation characteristics of NLs are examined. They appear as generalizations of concepts from uniform transmission lines (ULs). It was found that an-conductor NL has pairs of modes and the forward and backward waves of a mode have the same propagation constants. However, the modeshapes defined by the voltages and currents of a given mode are different. For illustration, the variation with frequency of these propagation characteristics has been presented for the wide-span river crossing of an overhead transmission line.

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Rational Modeling of Nonhomogeneous Systems

Lima¹

2014

J Control Autom Electr Syst

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Application of nonuniform-line theory to the simulation of electromagnetic transients in power systems

Cited by 7 publications

References 6 publications

Some frequency domain aspects of wave propagation on nonuniform lines

Some frequency domain aspects of wave propagation on nonuniform lines

Some Frequency Domain Aspects of Wave Propagation on Nonuniform Lines

Rational Modeling of Nonhomogeneous Systems

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