Modelagem e simulação de pára-raios para proteção de sistemas de distribuição contra descargas atmosféricas (Modeling and simulation of surge arresters for lightning protection of distribution systems)

Marcel Ayres de Araújo (marcel.araujo@usp.br)1, Rogério Andrade Flauzino (raflauzino@sc.usp.br)1, Vinícius de Cillo Moro (vinicius.moro@usp.br)1, José Carlos de Melo Vieira Jr (jcarlos@sc.usp.br)1


1Universidade de São Paulo, Escola de Engenharia de São Carlos, Departamento de Engenharia Elétrica, USP/EESC/SEL

This paper appears in: Revista IEEE América Latina

Publication Date: July 2015
Volume: 13,   Issue: 7 
ISSN: 1548-0992


Abstract:
Overvoltage protection systems are necessary to protect power system components against several types of overvoltages. In this paper, protection against overvoltage caused by lightning in 69 kV distribution feeders is addressed. The idea is to describe a methodology for which is possible to model and simulate the performance of a protection system which is composed by surge arresters when exposed mainly to direct lightning incidence. Moreover, typical overvoltage ranges were considered in this paper for the purpose of evaluating the developed protection system. Thus the major contribution of this paper relies upon the assessment of the lightning protection system performance, under different configurations.

Index Terms:
Electric power distribution, Electric power quality, Lightning, Protection against overvoltages, Surge arresters   


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