Design Support Tool for Multi-DER Residential Microgrids

In last years new energetic scenario are emerging. They are particularly applicable in residential contexts due to DER sources application and predictable energetic needs. In this paper residential multi-DER microgrids are considered with their devices and systems. A software tool is proposed to support designers in the identification and sizing of multi-DER domestic microgrids. Functioning conditions, sources and loads input data can be defined to configure the microgrid. Photovoltaic, fuel cells and micro wind generators are taken into account to plan the microgrid according to dwellings needs. Specific control techniques are implemented to minimize the active power exchange with the AC electric grid and to maximize the consumption of auto generated power. The application of Smart Converters to DER generators permits an online maximum power achievement. A case study is presented with particular attention to a cooling dominated building microgrid.