虚拟电厂资源聚合运行边界评估方法  

Resource aggregation operation boundary estimation method for virtual power plant

作　　者：吴玫蓉 李旭涛 白杨 任勇 尹亮 王放 宋宇航 丁永杰 WU Meirong;LI Xutao;BAI Yang;REN Yong;YIN Liang;WANG Fang;SONG Yuhang;DING Yongjie(Electric Power Research Institute,State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750011,China;State Grid Ningxia Integrated Energy Service Co.,Ltd.,Yinchuan 750011,China;NARI Technology Nanjing Control Systems Co.,Ltd.,Nanjing 211106,China)

机构地区：[1]国网宁夏电力有限公司电力科学研究院,银川750011 [2]国网宁夏综合能源服务有限公司,银川750011 [3]国电南瑞南京控制系统有限公司,南京211106

出　　处：《电力需求侧管理》2025年第2期1-7,共7页Power Demand Side Management

基　　金：国网宁夏电力有限公司科技项目(5229DK24000T)。

摘　　要：虚拟电厂(virtual power plant,VPP)在整合分布式能源(distributed energy resources,DER)方面有着巨大潜力,为促进电网资源的灵活管理和有效利用提供了一种高效的解决方案。为便于VPP参与系统调度,提出一种VPP内部灵活资源聚合运行边界评估方法。首先,考虑DER有功和无功功率的运行约束,将其表示为统一的线性不等式形式;然后,通过几何计算方法将同一个配电网节点上的所有异构DER聚合为一个DER聚合体;最后,考虑网络约束,建立VPP运行边界评估模型,并采用边界点搜索的方法计算出运行边界。算例结果表明所提方法能够考虑功率耦合和时间耦合特性,有效地评估出VPP的多时间运行边界。The virtual power plant(VPP)holds great potential in integrating distributed energy resources(DER),which provides an efficient solution for the flexible management and effective utilization of grid resources.A flexible resource aggregation operation boundary estimation method for VPP is proposed to facilitate VPP participation in system dispatch.First,the active and reactive power operation constraints of DER are considered and expressed in a unified linear inequality form.Then,all heterogeneous DERs on the same distribution network node are aggregated into one DER aggregator by a geometric computation method.Finally,considering the network constraints,a VPP operation boundary estimation model is established,and the operation boundary is calculated using the boundary point search method.The case study results show that the proposed method can effectively estimate the multi-time operation boundary of VPP by considering the power coupling and time coupling characteristics.

关 键 词：虚拟电厂 分布式能源 运行边界 几何计算 配电网 

分 类 号：TM73[电气工程—电力系统及自动化]