Avaliação do curto - circuito com outfeed em linhas de transmissão com compensação série
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Data
2019-07-11
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Universidade Federal de Goiás
Resumo
The use of series compensation in transmission lines is advantageous as it increases the
power transmitted by this equipment. Nevertheless, the use of capacitor banks in series to lines
raises the complexity of the protection of these equipments. Among the phenomena that can
compromise the correct performance of line protection, it’s mentioned fault situation with outfeed,
in which currents directions in the transmission line remain the same as the nominal operating
condition, despite having an internal fault occurred. As both the use of capacitor banks in series
and the protection employed in these banks contribute to the incidence of faults with outfeed, this
work aims to evaluate the occurrence of this phenomenon in series compensated transmission line.
For that, a 500 kV and 400 km transmission line with series compensation was modeled, through
the Alternative Transient Program (ATP) software, which was submitted to different types of
internal faults. Based on the obtained results, parametric sensitivity analyzes, throught the Octave
software, were carried out to verify how system load, type of fault, resistance and fault location
contribute to the existence of faults with outfeed.
Descrição
Palavras-chave
Curto-circuito, Outfeed, Compensação série, Linhas de transmissão, Faults, Series compensation, Transmission, Lines
Citação
MARÇAL, Valentina de Paula. Avaliação do curto-circuito com outfeed em linhas de transmissão com compensação. 2019. 79 f. Trabalho de Conclusão de Curso (Graduação) - Escola de Engenharia Elétrica, Mecânica e da Computação, Universidade Federal de Goiás, Goiânia, 2019.