Abstract
In recent years, the capacity of installed distributed energy resources (DERs) using renewable energy such as photovoltaic systems (PVs) has been increasing. In the near future, battery energy storage systems (BESs) may also be installed. Then, smart communities using DERs and BESs are expected to realize the efficient use of energy in demand area. However, if the smart communities are operated to optimize their local objectives (cost minimization, etc.), the demand fluctuations of the communities will be complicated. Then, there may be problems in the distribution system, such as voltage rise and overcurrent. In this study, simulation models to evaluate the mutual impact between a smart community and a distribution system are proposed, and the impact of the autonomous operation of a smart community using BESs on the distribution system is evaluated by the simulation analyses.
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