Desenvolvimento de Plataforma de Testes Virtuais em Tempo Real para Dispositivos Eletrônicos Inteligentes com Função de Detecção de Faltas de Alta Impedância

Abstract

This paper presents the development of a virtual real-time test platform for intelligend electronic devices (IEDs) with high impedance fault detection function. High impedance faults are very common events in overhead distribution systems, being difficult to detect due to it’s low current magnitude. Considering the difficulty of recording oscillographies of these faults, and the availability of real-time digital simulations, this paper proposes a test platform for protection devices. In order to accomplish this, a real-time simulation platform from Typhoon HIL Inc., equipped with a Typhoon HIL 604 is used. The elaboration and validation process of the high impedance fault model proposed by Gautam and Brahma (2013) is demonstrated, testing the parameters of three different surfaces. The results reflect what is expected for high impedance faults, with the tests occuring dynamically through the accesses of the low-level interface of the used IED.