Limitador de Corrente de Curto-Circuito Baseado em Circuito Ressonante Controlado por Dispositivos Semicondutores de Potência (Fault Current Limiter Based on Resonant Circuit Controlled by Power Semiconductor Devices)

Matusalém Martins Lanes (, Henrique Antonio Carvalho Braga (, Pedro Gomes Barbosa (

1Centro Federal de Educação Tecnologica de Minas Gerais
2Universidade Federal de Juiz de Fora

This paper appears in: Revista IEEE América Latina

Publication Date: Sept. 2007
Volume: 5,   Issue: 5 
ISSN: 1548-0992

This work presents a resonant fault current limiter (FCL) controlled by power semiconductor devices. Initially the operation of two ideal resonant circuit topologies as fault current limiter are discussed. The analysis of these circuits is used to derive an alternative topology to the fault current limiter based on the connection of a series and a parallel resonant circuit. Digital models are implemented in the SimPowerSystem/Matlab simulation package to investigate the performance of the proposed FCL to protect transmission and distribution electric networks against short circuit currents. Transfer functions of the linear limiter models are used to identify the effect of each element of the FCL over its stability and its transient response. The developed analysis will be used to derive modifications in the FCL topology in such a way to improve their dynamic response.

Index Terms:
Fault Currents, Fault Current Limiter (FCL), Solid-State Current Limiter (SSCL)   

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