Wavelet-based relay agent for isolating faulty sections in distribution grids with distributed generators | IET Conference Publication | IEEE Xplore

Wavelet-based relay agent for isolating faulty sections in distribution grids with distributed generators

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Abstract:

This paper presents an agent based protection scheme to detect and isolate the faults in a distribution system with high penetration of distributed generation. An algorit...Show More

Abstract:

This paper presents an agent based protection scheme to detect and isolate the faults in a distribution system with high penetration of distributed generation. An algorithm that uses wavelet coefficients of the transient fault currents is proposed for the identification of faulted sections. The algorithm is a hybrid of two techniques: one that determines the direction of fault currents based on the sign of wavelet coefficients and the other that estimates the distance to a fault based on the time interval between the travelling waves (and their reflections) arriving from the fault. Studies with a simulated distribution system indicate that the proposed method can correctly recognize the faulty sections.
Date of Conference: 28-31 March 2006
Date Added to IEEE Xplore: 05 June 2006
Print ISBN:0-86341-613-6
Print ISSN: 0537-9989
Conference Location: London, UK

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