分布式水光电源插座式耦合接入配电网的优化规划方法  

Optimized Planning Method for Plug-in Coupled Integration of Distributed Hydro Power and Photovoltaic Power

作　　者：陈菲尔 莫阮清 蓝国卉 CHEN Feier;MO Ruanqing;LAN Guohui(State Grid Economic and Technological Research Institute,SMEPC,Shanghai 200233,China)

机构地区：[1]国网上海市电力公司经济技术研究院,上海200233

出　　处：《电力与能源》2025年第1期67-73,共7页Power & Energy

摘　　要：分布式光伏的快速增长对配电网规划的适应性提出了新的要求。为避免光伏接入的“卡脖子”问题,提出了一种利用配电网中广泛分布的小水电与光伏在资源特性上的互补潜力,提前优化布局水光耦合插座,以实现分布式光伏即插即用的规划方法。具体而言,针对径流式小水电和分布式光伏,基于模糊C均值聚类算法生成水光耦合特征场景集,并定义了波动率指标来衡量水光耦合发电在微气象角度下的电力和电量波动程度。针对海量高密度分布式光伏与水电开发区域,以资源空间位置距离和耦合后电力电量波动率最小为目标,建立了该区域水光耦合集群的多目标最优划分模型,并采用多目标遗传算法NSGA-II进行求解。最后通过算例仿真,验证了该方法的有效性,可为“双碳”背景下新能源接入和新型配电网规划提供一定的参考。The rapid growth of distributed photovoltaics(PV)has raised new requirements for the adaptability of distribution grid planning.In order to avoid issues such as the"bottleneck"effect of PV integration,this paper proposes an optimized planning method for plug-in coupling of distributed hydropower and PV in the distribution network,utilizing the complementary potential of small hydropower and PV in terms of resource characteristics.This method aims to achieve plug-and-play integration of distributed PV by optimizing the layout of hydro-PV coupling sockets in advance.Specifically,for runoff small hydropower and distributed PV,a hydro-PV coupling feature scenario set is generated based on the fuzzy C-means clustering algorithm.A volatility index is defined to measure the power and energy fluctuations of hydro-PV coupled generation from a micro-meteorological perspective.For large-scale,high-density distributed PV and hydropower development areas,a multi-objective optimal partition model for regional hydro-PV coupling clusters is established with the goal of minimizing the spatial distance between resources and the coupled power and energy fluctuation rate.The model is solved using the multiobjective genetic algorithm NSGA-II.Simulation examples verify the effectiveness of the proposed method,which can provide useful references for the integration of new energy sources and the planning of new distribution grids under the"dual carbon"(carbon peaking and carbon neutrality)context.

关 键 词：分布式电源 水光互补 配电网规划 

分 类 号：TM73[电气工程—电力系统及自动化]