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Scalable enumeration approach for maximizing hosting capacity of distributed generation

机译:可扩展的枚举方法,可最大化分布式发电的托管容量

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摘要

At the stage of planning distributed generation (DG) for a distribution network, the network configuration is a key factor in increasing the DG hosting capacity. The determination of a configuration that maximizes the hosting capacity is a highly complex, nonlinear combinatorial optimization problem. No existing method can yield the global optimal solution for practical-scale networks. Therefore, this paper proposes a scalable optimization method. Specifically, the proposed method enumerates all optimal configurations while simultaneously considering optimal DG placement. The proposed method first optimizes the DG placement for possible partial networks using a second-order cone programming technique. Next, it enumerates possible combinations of the partial networks while avoiding a combinatorial explosion using a highly compressed data structure. Finally, it finds the optimal configurations by exploring solutions over the data structure. In experiments involving a large-scale network containing 235 switches, our enumeration method obtained 1.49 x 10(18) global optimal configurations in 17.1 h. Another powerful feature of our method is that it enables distribution system operators to select the preferred optimal configuration interactively.
机译:在规划配电网络的分布式发电(DG)阶段,网络配置是增加DG托管容量的关键因素。确定最大承载能力的配置是一个高度复杂的非线性组合优化问题。现有的方法都无法为实际规模的网络提供全局最优解决方案。因此,本文提出了一种可扩展的优化方法。具体来说,该方法列举了所有最佳配置,同时考虑了最佳DG放置。提出的方法首先使用二阶锥规划技术为可能的部分网络优化DG放置。接下来,它列举了部分网络的可能组合,同时避免了使用高度压缩的数据结构进行组合爆炸。最后,它通过探索数据结构的解决方案来找到最佳配置。在涉及包含235个交换机的大规模网络的实验中,我们的枚举方法在17.1小时内获得了1.49 x 10(18)全局最优配置。我们方法的另一个强大功能是,它使配电系统运营商可以交互地选择首选的最佳配置。

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