Design and Implementation of a Laboratory-scale Microgrid

Abstract

This paper deals with the implementation of a single phase laboratory scale micro grid (MG) including a control system based on emulated energy resources and loads which permits the experimentation of various scenarios. The proposed MG is comprised of a wind turbine simulator, a solar photovoltaic (PV) and a battery bank which are connected to the MG via flexible Voltage Source Inverters respectively. Although a MG can operate either in grid connected mode or islanded mode, in our research we have mainly focused on islanded operation only. In that mode, bidirectional inverter performs a major role in maintaining the voltage and frequency at an acceptable level for safe collaborative operation. The results of these studies show the capability of developing a reliable control mechanism for islanding operation of micro grids based on the proposed concept.