Multi-objective Coordinated Energy Dispatch and Voyage Scheduling for a Multi-energy Cruising Ship

Abstract

To develop a more efficient and environmentally-friendly ship is absolutely appealing for the worldwide ship industry, given its current low efficiency but high emissions. In this light, this paper proposes a novel multi-energy configuration for the cruising ships. First, we introduce the high-efficient combined cooling heat and power (CCHP) plant in the ship with diesel generators and electric energy storage, to provide multiple energies. Second, to flexiblize the operation of CCHP plant and enhance the multi-energy interaction, the thermal storage and power to thermal conversion unit are also included. Further, a multiobjective coordinated energy dispatch and voyage scheduling method for the cruising ship is presented to simultaneously reduce the ship operating cost and gas emissions by the augmented ε-constraint method (AUGMECON). After the constraints linearization, the coordination method is formulated as a mix-integer linear programming (MILP) problem and solved by the Cplex solver. Finally, the proposed method is applied to a test cruising ship and by comparing it with the traditional benchmarks, its effectiveness is verified.