The innovation towards sustainable solutions is
involving all the industrial sectors. In this context, the marine
world is going through a great transition. The integration of
renewable energy sources and the adoption of flexible power
systems, like DC microgrids, are some powerful solutions to
develop advanced and sustainable marine grids. These concepts
are not only adopted in the onboard shipboard distribution, but
also when conceiving supplying platforms and marinas. In this
paper a flexible DC microgrid is proposed for a yacht-marina,
and a coordinated power control is presented. The ships at
berth, renewable sources and energy storages are all connected
through multiple power converters. A centralized controller is
demanded in managing sources and loads. By properly
coordinating the photovoltaic modules, landed/embarked
storage and power flows to/from the main grid, the attained goal
is the sustainable operation of the yacht-marina DC microgrid.
