Simulation of load-sharing in standalone distributed generation system
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Date
2018
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IOP Publishing
Abstract
This paper presents a study on load-sharing among the component generating units
of a multi-source electric microgrid that is operated as an autonomous ac supply-mode system.
Emerging trend in power system development permits deployment of microgrids for
standalone or stand-by applications, thereby requiring active- and reactive power sharing
among the discrete generating units contained in hybrid-source microgrids. In this study,
therefore, a laboratory-scale model of a microgrid energized with three renewable energybased
sources is employed as a simulation platform to investigate power sharing among the
power-generating units. Each source is represented by a source emulator that captures the real
operational characteristics of the mimicked generating unit and, with implementation of reallife
weather data and load profiles on the model; the sharing of the load among the generating
units is investigated. There is a proportionate generation of power by the three source
emulators, with their frequencies perfectly synchronized at the point of common coupling as a
result of balance flow of power among them. This hybrid topology of renewable energy-based
microgrid could therefore be seamlessly adapted into national energy mix by the indigenous
electric utility providers in Nigeria.
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Ajewole1, T, O., Craven2, R.P.M., Kayode, O., and Babalola, O.S. (2018): ‘Simulation of load-sharing in standalone distributed generation system’IOP Conf. Series: Earth and Environmental Science 154(2018) 012014.