Review of Different Propulsion Methods for Hybrid-Electric Propulsion Ship

Paper in proceeding, 2022

This paper reviews different hybrid-electric propulsion modes, i.e., series hybrid, parallel hybrid, and series-parallel hybrid. It then focuses on traditional propeller propulsion, shaftless rim propulsion, and pod propulsion. It mainly distinguishes and compares various propulsion methods, from advantages and disadvantages, power range, to technical issues, and analyzes the applicable ships and propulsion efficiencies for each type of propulsion method. Although shaftless rim propulsion and pod propulsion have various key technical challenges, their propulsion efficiencies are higher than traditional propeller propulsion. And they are promising to be used in hybrid power ships in the near future.