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期刊号: CN32-1800/TM| ISSN2097-6623

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基于凸包辨识的主动配电网电压-功率聚合可行域研究

来源:电工电气发布时间:2026-01-26 10:26浏览次数:2

基于凸包辨识的主动配电网电压-功率聚合可行域研究

赵智勇,李岩,李卫军,李志前,冯华威
(国网河南省电力公司驻马店供电公司,河南 驻马店 463000)
 
    摘 要:随着分布式资源的加速渗透,新型电力系统运行面临着更大的不确定性,配电网电压越限、潮流阻塞等安全问题的风险进一步提升,据此聚合配电网中的海量异质资源,充分发挥分布式资源的灵活性,有助于电力系统的安全稳定运行,进一步提升电力系统运行经济性。提出了一种基于凸包辨识的主动配电网电压-功率聚合方法。该方法基于配电网与分布式资源的运行约束,考虑了配电网根节点电压对输入功率的影响,构建了含分布式资源的配电网根节点电压-功率可行域模型,并以多面体的形式将可行域可视化,形象表征了主动配电网根节点电压-功率的可行范围。通过多规模的算例分析,验证了所提方法的有效性和通用性。
    关键词: 聚合;主动配电网;凸包辨识;可行域;分布式资源
    中图分类号:TM743     文献标识码:A     文章编号:2097-6623(2026)01-0037-08
 
Research on Voltage-Power Aggregation Feasible Region for Active
Distribution Networks Based on Convex Hull Identification
 
ZHAO Zhi-yong, LI Yan, LI Wei-jun, LI Zhi-qian, FENG Hua-wei
(Zhumadian Power Supply Company of State Grid Henan Electric Power Co., Ltd., Zhumadian, 463000, China)
 
    Abstract: With the rapid integration of distributed energy resources, the new-type power systems are experiencing heightened operational uncertainties,which led to increased risks of safety issues such as voltage over-limit and power flow blockage in distribution networks. Based on this, aggregating the massive heterogeneous resources in the distribution network and giving full play to the flexibility of distributed resources is conducive to the safe and stable operation of the power system and further improves the economic operation of the power system.This paper proposes a voltage-power aggregation method for active distribution networks based on convex hull identification. This method is based on the operational constraints of distribution networks and distributed resources. It considers the influence of the root node voltage of the distribution network on the input power, constructs a feasible region model of the root node voltage and power of the distribution network containing distributed resources, and visualizes the feasible region in the form of a polyhedron, vividly representing the feasible range of the root node voltage and power of the active distribution network. Through multi-scale case studies, the effectiveness and universality of the proposed method were verified.
    Key words: aggregation; active distribution network; convex hull identification; feasible region; distributed energy resource
 
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