Abstract Isolated microgrid is a conventional power supply mode for inhabited pelagic islands, but limited land resources restrict the capacity of renewable energy units, resulting in overreliance on diesel turbines or gas turbines, which consumes a large amount of fossil fuels and produces substantial emissions. Establishing effective connections among pelagic islands can optimize the use of land/energy resources in uninhabited islands. However, a transmission network composed solely of submarine cables is not feasible or economical. This paper proposes an energy transmission route that uses all-electric vessels (AEVs) to transport battery energy storage (BES) between islands. The battery swapping mode is employed and part of the cable network is replaced by AEV routes to transmit the renewable energy and lower the overall cost. First, the transmission modes composed of AEVs and batteries are modeled to analyze energy transmission efficiency and cost-effectiveness. Then, a hybrid transmission planning model is established using scenario clustering method, and the additional costs under extreme weather scenarios are also considered. The model is optimized with the chaotic gravitational search algorithm, and the feasibility and effectiveness of the proposed method are verified through actual cases and sensitivity analysis.

中文翻译：

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具有海底电缆和基于全电动船的能量传输路线的远洋岛屿混合传输网络

摘要 孤立微电网是有人居住的远洋岛屿的常规供电方式，但有限的土地资源限制了可再生能源机组的容量，导致过度依赖柴油涡轮机或燃气涡轮机，消耗大量化石燃料并产生大量排放。在远洋岛屿之间建立有效的联系可以优化无人岛土地/能源的利用。然而，仅由海底电缆组成的传输网络不可行或不经济。本文提出了一种使用全电动船（AEV）在岛屿之间传输电池储能（BES）的能量传输路线。采用电池交换模式，将部分有线网络改为AEV路线，传输可再生能源，降低整体成本。第一的，对由 AEV 和电池组成的传输模式进行建模，以分析能量传输效率和成本效益。然后，采用情景聚类方法建立混合输电规划模型，并考虑极端天气情景下的额外成本。采用混沌引力搜索算法对模型进行优化，通过实际案例和敏感性分析验证了所提方法的可行性和有效性。