Frequency-dependent line model in the time domain for simulation of fast and impulsive transients

Autor(es)

Caballero, Pablo Torrez ^[1] ; Marques Costa, Eduardo C. ^[2] ; Kurokawa, Sergio ^[1]

Afiliação do(s) autor(es)

^[1] Unesp Univ Estadual Paulista, Fac Engn Ilha Solteira FEIS, Dept Engn Eletr, Ilha Solteira, SP - Brazil

^[2] Univ Sao Paulo, Escola Politecn, Dept Engn Energia & Automacao Eletr PEA, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS; v. 80, p. 179-189, SEP 2016.
• Citações Web of Science: 5

Resumo

A new transmission line model is proposed based on the well-established Bergeron method. The conventional Bergeron model is characterized by the line representation by concentrated longitudinal and transversal parameters, i.e., electrical parameters of the line are represented by means of electric circuit elements. The original approach of this research is the inclusion the frequency effect in the longitudinal parameters of the Bergeron line representation. In order to increase the frequency range covered by the proposed model, the line is represented by a cascade of line segments which are modeled following the proposed frequency-dependent Bergeron circuit. The differential equations resulted from the proposed development are represented by state matrices. The line representation by cascade of frequency-dependent Bergeron circuits enables to extend the application of the new modeling technique for simulations considering a wide range of frequencies, from a switching up to an atmospheric impulse. The proposed line model is validated based on results obtained from the well-established line model using numerical Laplace transform. (c) 2016 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 14/17051-0 - Inclusão do efeito da frequência no modelo de Bergeron: representação de linhas de transmissão curtas e longas considerando transitórios eletromagnéticos resultantes de operações de manobras e de descargas atmosféricas
• Beneficiário: Pablo Torrez Caballero
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 15/10204-8 - Modelagem da impedância de surto de torres de transmissão com altura elevada e aterramento elétrico
• Beneficiário: Eduardo Coelho Marques da Costa
• Modalidade de apoio: Auxílio à Pesquisa - Regular