Routine for Simulating Transmission Lines with Symmetrical and Asymmetrical Configurations Using a Real and Constant Modal Transformation Matrix

Autor(es)

Caballero, Pablo Torrez ; Kurokawa, Sergio ; Kordi, Behzad ; IEEE

• Tipo de documento: Artigo Científico
• Fonte: 2018 IEEE ELECTRICAL POWER AND ENERGY CONFERENCE (EPEC); v. N/A, p. 6-pg., 2018-01-01.

Resumo

Modal analysis is widely used in over-voltage and over-current studies of power systems. Modal transformation decouples a transmission line into its modes. Time-domain transmission line models usually require a real and constant modal transformation matrix. This paper proposes an approach that considers a real modal transformation matrix at a fix frequency to transform currents and voltages to the mode domain, and computes mode parameters using a frequency-dependent transformation matrix. Presented results demonstrate that the proposed approach is accurate and works with symmetrical, non-symmetrical and vertical transmission overhead line geometries. (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