Performance of Ship Microgrid With Power Management

Opportunities for advancing power management system (PMS) have arisen due to the growing emphasis on enhancing the fuel economy of maritime transportation. This work examines the ideal functioning of a multi-energy ship microgrid to lower the ship's running cost and fuel emissions in light of the rapidly expanding shipping sector. This microgrid consists of a synchronous generator (SG) driven diesel generator (DG) set, solar photovoltaic array (SPV), battery, and onboard electric loads. Power quality problems, such as voltage imbalance, frequency jump, grid voltage distortions, etc., are typical in ship power systems and negatively impact onboard electric loads. The frequency-adaptive moving average filter (FAMAF) is employed in the first voltage source inverter (VSI) to improve the system's power quality. FAMAF phase-locked loop (FAMAF-PLL) is deployed to accurately track grid voltage when the vessel receives shore power supply. In order to ensure the stability of the DC bus, the proportional-integral (PI) controller is tuned using the Pelican optimization algorithm.