Title :
Modeling and simulation of fault detection methods for power electronic interfaced microgrids
Author :
Ndjaba, S. ; Machnida, G.T. ; Nthontho, M. ; Chowdhury, S. ; Chowdhury, SP ; Mbuli, N.
Author_Institution :
UCT, Cape Town, South Africa
Abstract :
Conventional protection schemes are unable to detect low fault current levels common in microgrids. A number of methods have been proposed in various research papers. Some of the recently proposed methods are the total harmonic distortion detection method, addition of a current source, abc-dq0 transformation method and the voltage constraint overcurrent method. Analysis of these methods is conducted in this paper and simulations run using Matlab Simulink.
Keywords :
distributed power generation; fault currents; fault diagnosis; harmonic distortion; power electronics; power generation faults; power generation protection; Matlab-Simulink simulation; abc-dq0 transformation method; current source; fault detection methods; low fault current level detection; microgrid protection schemes; power electronic interfaced microgrids; total harmonic distortion detection method; voltage constraint overcurrent method; Batteries; Circuit faults; Fault currents; Mathematical model; Power electronics; Voltage measurement; THD detection; abc-dq0 transformation; adding fault current sources; fault detection; power electronic interfaced microgrid; voltage-restrained over-current relaying;
Conference_Titel :
Universities Power Engineering Conference (UPEC), 2012 47th International
Conference_Location :
London
Print_ISBN :
978-1-4673-2854-8
Electronic_ISBN :
978-1-4673-2855-5
DOI :
10.1109/UPEC.2012.6398556
