Localização por Área de Faltas de Alta Impedância em Sistemas de Distribuição baseado na Componente de Sequência Zero de Corrente (High Impedance Fault Area Location in Distribution Systems Based on Current Zero Sequence Component)

João Tito Almeida Vianna (joaotito.vianna@gmail.com)1, Leandro Ramos Araujo (leandro.araujo@ufjf.edu.br)1, Débora Rosana Ribeiro Penido (debora.rosana@ufjf.edu.br)1


1Universidade Federal de Juiz de Fora

This paper appears in: Revista IEEE América Latina

Publication Date: Feb. 2016
Volume: 14,   Issue: 2 
ISSN: 1548-0992


Abstract:
This paper presents a new methodology for detection and area location of high impedance faults (HIF) on unbalanced distribution systems. The method is called Quasi-Differential Zero Sequence Protection (PQDSZ) and it detects these faults by analyzing the current zero sequence rms value on a distribution feeder. The detection relies on a differential area, defined by two points of measurement. The data is sent to a control center, which analyzes the relation between the received currents and send an alarm if any problem is detected. A simulation system with the RTDS and real automation equipment is presented, in order to validate the PQDSZ.

Index Terms:
automation systems, distribution systems, high impedance faults, power system protection, Real Time Digital Simulator, unbalanced operation   


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