A novel optimal power management and control strategy for Marine Microgrids Integrated with Renewable Energy Sources and hybrid energy storage devices

Abstract : An advanced strategy for optimizing power management and frequency control in
marine microgrids is introduced in this paper. The investigated system incorporates a mix of
renewable energy sources and hybrid energy storage devices. A robust optimal PID controllerwas employed to tackle the intermittency challenges associated with wind and marine energy
sources, ensuring precise frequency control via time-domain simulations. A hybrid energy
storage system, which includes SMES/Battery/Ultra-Capacitors (UCs) and Fuel Cells (FCs),
was implemented to manage frequency variations and optimize the charge/discharge cycles
of batteries. To further mitigate power fluctuations and extend the life of batteries, a low-pass
filter was applied, inspired by optimization techniques for hybrid storage systems. A notable
innovation in this study is the introduction of a photovoltaic (PV) energy source into the
system, enhancing the diversity and capacity for renewable energy production in the
microgrid. A comprehensive comparative study is conducted, exploring a range of scenarios:
with and without energy storage, with the integration of PV energy, excluding the use of
diesel, and implementing battery filtering. This approach allows for an evaluation of the
impact of each configuration on the overall performance of the microgrid, underscoring
significant enhancements in sustainability, efficiency, and a reduction in dependence on fossil
fuels. The preliminary results point to a considerable improvement in energy management in
isolated marine environments, showcasing the potential of this strategy for future marine
microgrid applications. This research makes a significant contribution to the advancement of
renewable energy management systems, presenting a viable and sustainable option for the
powering of marine microgrids.