Banca de DEFESA: TÚLIO OLIVEIRA SILVA E ASSUNÇÃO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : TÚLIO OLIVEIRA SILVA E ASSUNÇÃO
DATE: 28/12/2023
TIME: 17:00
LOCAL: Apresentação remota: meet.google.com/thp-zubk-yww
TITLE:

Comparative Study of Fitting Rational Functions in Transmission Line Models

KEY WORDS:

Applied Electromagnetism; Transmission lines; Electromagnetic transients; Lightning; Lightning Overvoltages; Soil Effect; Longitudinal and Transverse Parameters; Voltage and Current Distributions; Rational Approach; Bode diagram; Vector Fitting.

PAGES: 87
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Sistemas Elétricos de Potência
SPECIALTY: Transmissão da Energia Elétrica, Distribuição da Energia Elétrica
SUMMARY:

The overhead transmission lines are subject to several transients events, such as atmospheric discharges. For this, the study of electromagnetic transients in transmission lines is fundamental to know the response of this element before the electrical power system in cases of unexpected requests. In the existing line models in electromagnetic transient softwares, a required step is the fitting of the functions that model the line in rational functions. Therefore, this paper aims to analyze the difference between two methods of rational approximation in the study of electromagnetic transients in a single-phase overhead transmission line. The two methods used are: i) Asymptotic Bode Fitting (ABF); ii) Vector Fitting (VF). The analyzed models are computed considering a frequency spectrum from 100 Hz to 10 MHz. According to the results, the use of the most complex model, VF, can lead to mean square errors up to 36 times smaller than those resulting from the use of the traditional ABF implemented in electromagnetic transient software such as ATP.

BANKING MEMBERS:
Presidente - 1418371 - MARCO AURELIO DE OLIVEIRA SCHROEDER
Interno - 1032696 - RODOLFO ANTONIO RIBEIRO DE MOURA
Externo ao Programa - 089.733.996-75 - MIGUEL DE BRITO GUIMARÃES NETO - NÃO INFORMADO
Externo à Instituição - ANTONIO CARLOS SIQUEIRA DE LIMA - UFRJ
Externo à Instituição - JAIMIS SAJID LEON COLQUI
Externo à Instituição - MÁRCIO ZAMBOTI FORTES - UFF