Comparative Analysis on AC and DC Distribution Systems for Electric Propulsion Ship

Decarbonization is an ongoing issue in the shipping industry, and electric propulsion systems are being proposed as alternative solutions to satisfy this requirement. To answer fundamental questions of “Are green solution?” “Can DC distribution contribute decarbonization shipping?”, paper analyzed system electrical characteristics, economic feasibility, environmental evaluation for a full-scale AC-DC hybrid facility. By applying actual ship’s operating profile inputs, with active front end rectifier variable speed generator engine was proven guarantee same stability conventional AC system. The life cycle assessment results achieved benefits about 10% (8.9% Case 1 12.4% 2). These research findings offer meaningful insights into minimize fuel consumption emissions toward cleaner shipping.