Large Scale Integration of Micro-Generation to Low Voltage Grids

Description of the laboratory micro grids
The laboratory Microgrid system of NTUA
This report presents the laboratory-scale microgrid system, which has been installed at the National Technical University of Athens, within Workpackage H of the project. The microgrid comprises two PV generators, battery energy storage, controllable loads and a controlled interconnection to the local LV grid. Both the battery unit and the PV generators are connected to the AC grid via fast-acting DC/AC power converters. The converters are suitably controlled to permit the operation of the system either interconnected to the LV network (grid-tied), or in stand-alone (island) mode, with a seamless transfer from the one mode to the other.
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