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Application of Battery Storage in Low Voltage Distribution Network for Improving Integration of Distributed Generation

In this paper, using of a battery energy storage system in a low voltage distribution network for improving the integration of distributed generation and island operation during the failure in the main grid is presented. Modeling and simulation of the low voltage distribution network are performed using DigSilent Power Factory. The observed network consists of households whose load diagram based on measurement data is modeled. Distributed generation in the observed network is a photovoltaic power plant. Time step simulation is performed to show the impact of battery storage on transformer load. Power flow simulations for two different cases are performed: maximum generation and minimum load and minimum generation and maximum load to show the impact of battery storage on voltages and power flows. Battery storage can cover consumption when the main grid is not available in case of any failure. Time step simulation is done to show how long a fully charged battery can cover consumption during the day when generation is available and during the night when there is no generation from photovoltaic. Power flow simulation is done to show the impact of battery storage on voltages when the main grid is not available.