Grid-friendly Integration of Future Public Charging Infrastructure by Flywheel Energy Storage Systems (FESS)

Inhalt:
An area-wide electrification of the transport sector requires, in addition to private charging at home, the implementation of public charging infrastructure. However, the aggregation of private- and public-charging loads could push existing distribution grids to their limits, considering future electric vehicle penetration prospections. In this regard, potential grid impacts of private- and public EV charging on an urban low-voltage grid are evaluated for several charging scenarios and various electromobility penetrations. Furthermore, it is investigated if EV related grid restrictions can be counteracted by the implementation of flywheel energy storage systems. Finally, this study demonstrates the potential of locally generated photovoltaic energy for supplying electric vehicle charging demands based on decentralized storage systems.