Modelagem e análise da proteção anti-ilhamento de geradores distribuídos térmicos e fotovoltaicos

Rodrigo T. Toledo; Eduardo P. A. Ribeiro; Kleber M. Silva; Luciano S. Barros; Caio M. Moraes

doi:10.20906/sbse.v2i1.3078

Rodrigo T. Toledo Departamento de Engenharia Elétrica, Universidade de Brasília, DF
Eduardo P. A. Ribeiro Departamento de Engenharia Elétrica, Universidade de Brasília, DF
Kleber M. Silva Departamento de Engenharia Elétrica, Universidade de Brasília, DF
Luciano S. Barros Departamento de Sistemas de Computação, Universidade Federal da Paraíba, PB
Caio M. Moraes Departamento de Engenharia Elétrica, Universidade de Brasília, DF

DOI: https://doi.org/10.20906/sbse.v2i1.3078

Keywords: Anti-islanding protection, distributed generation, synchronous generator, photovoltaic generator, frequency, distribution network

Abstract

This paper presents an analysis of the anti-islanding protection (AIP) functions behavior during the islanded operation of a distribution network section that contains simul- taneously distributed generators interfaced by inverters and directly connected to the grid via synchronous generator. Through the simulations carried out, it was verified that the tripping time of traditional passive islanding detection functions is significantly affected when there are synchronous generators connected to the island. This is due to the existence of a synchronous, although weak, reference for the photovoltaic generator, extending its islanded operation. It was also verified the need for greater care in the parameterization of AIP functions as well as the complementation of more robust and sensitive detection functions in order to ensure greater network reliability and security.