Resilience Analysis of a Shipboard Power System with Disruptive Events and Varying Ship Load Conditions

Sustainable marine ships are in top priority of the governing bodies to address the adverse impacts of climate change. Thus, the maritime industry is starting to develop a full-electric shipboard power system (SPS) that consists of energy storage systems (ESS), electric propulsion, and necessary loads to operate a ship. In this study, resilience analysis was conducted by simulating a battery-operated ship, the Ampere ship. SPS environment of the ship was constructed and simulated under varying loads and disruptive events using MATLAB Simulink. Different case problems were considered in the simulation to incorporate the resilience analysis in the ship during disruptive events. The results of the simulation which include the electrical parameters of voltage and current were further analyzed using correlation method. Results showed that a strongly positive correlation exists between currents from voltage spikes and dips for cold-ironing conditions, while a strongly negative correlation is present between values of current after voltage spikes and voltage dips when in sailing conditions.