Given the rapid development of the ship industry and increasing ship operating cost and gas emissions, this article studies the optimal operation of a multienergy ship (MES) microgrid to simultaneously reduce the ship operating cost and gas emissions. Apart from the conventional diesel generators, electric energy storage, and photovoltaic cells, the combined cooling heat and power (CCHP) unit is introduced for higher energy utilization efficiency. Besides, to flexiblize the CCHP operation and enhance the multienergy interaction, the thermal storage and power-to-thermal conversion unit are also included in the MES microgrid. Then, a multiobjective coordinated energy dispatch and voyage scheduling method are presented. After the constraints linearization, the coordination method is formulated as a mixed-integer linear programming problem, which is solved by the augmented ϵ-constraint method through Cplex solver. Finally, the proposed method is verified on a testing MES microgrid with necessary sensitivity analysis, and by comparing it with traditional benchmarks, its advantages are demonstrated. The simulation results indicate that the proposed method is effective for reducing the operating cost and emission, and it could provide references for the optimal operation of the emerging multienergy cruising ships.

中文翻译：

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多能源船舶微电网多目标协调能源调度与航次调度

鉴于船舶工业的快速发展以及船舶运营成本和气体排放量的增加，本文研究了多能源船舶（MES）微电网的优化运行，以同时降低船舶运营成本和气体排放。除了传统的柴油发电机、电能储存和光伏电池外，还引入了冷热电联产（CCHP）装置，以提高能源利用效率。此外，为了灵活 CCHP 运行并增强多能交互，MES 微电网中还包括蓄热和电热转换单元。然后，提出了一种多目标协调能源调度和航次调度方法。在约束线性化之后，协调方法被表述为混合整数线性规划问题，这是通过 Cplex 求解器通过增广 ϵ-constraint 方法求解的。最后，通过必要的灵敏度分析在测试 MES 微电网上验证了所提出的方法，并通过与传统基准进行比较，证明了其优点。仿真结果表明，该方法能有效降低运营成本和排放，可为新兴多能巡航船舶的优化运营提供参考。