Study on house-level microgrids and their power electronics
This thesis introduces the concept of microgrid, and analyzes the capability for Plug-in Electric Vehicles (PHEV) and photovoltaics (PV) to support a residential load during the time when the utility grid has a power outage. A microgrid system model is introduced and simulations have demonstrated the performance of this microgrid in a grid outage. The possible power electronics interfaces in this microgrid configuration is investigated and compared. Several power electronics converters are introduced and simulated to realize different forms of power conversion. The system model of a DC-DC buck converter is formed, and a possible frequency compensator has been designed and simulated for it. This thesis has introduced the feasibility of a house-level microgrid in its theoretical backup performances, hardware implementations and control.