A MILP program for integrated global optimization of electrical cables systems in Offshore Wind Farms (OWFs) is presented. Electrical cables encompass the cable layout in collection systems to interconnect Wind Turbines (WTs), and transmission systems to couple Offshore Substations (OSSs) to the Onshore Connection Point (OCP). The program is solved through a modern branch-and-cut solver, demonstrating the ability to tackle large-scale instances with hundreds of WTs and several OSSs. The model supports as objective function the initial investment plus economic losses due to total electrical power losses. The importance and functionality of incorporating electrical losses is demonstrated, along with the need to simultaneously optimize the cable layout, OSSs location, and transmission cables. The method is tested for three case studies. The results show that (i) points near the global optimum, with an imposed maximum tolerance, are calculable within reasonable computational time and effort, and (ii) the integrated model can be much more efficient than a benchmark approach based on enumeration, i.e., exhaustive evaluation of all possible optimization problems derived from unique OSSs locations.

中文翻译：

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海上风电场电缆的集成全局优化模型

提出了用于海上风电场（OWF）中的电缆系统的集成全球优化的MILP程序。电缆包括收集系统中用于互连风力涡轮机（WT）的电缆布局，以及用于将离岸变电站（OSS）与陆上连接点（OCP）耦合的传输系统的电缆布局。该程序是通过现代的分支切割求解器解决的，展示了使用数百个WT和多个OSS处理大型实例的能力。该模型将初始投资加上由于总电力损耗引起的经济损失作为目标函数。展示了合并电损耗的重要性和功能，以及同时优化电缆布局，OSS位置和传输电缆的需求。该方法针对三个案例进行了测试。