面向季节性短时高峰负荷的虚拟配电馈线功能架构及协同配置  

Functional Architecture and Collaborative Configuration of Virtual Distribution Feeder for Seasonal Short-term Peak Load

作　　者：周念成[1] 王鹏[1] 池源[1] 郭莹霏 王强钢[1] 罗永捷 ZHOU Niancheng;WANG Peng;CHI Yuan;GUO Yingfei;WANG Qianggang;LUO Yongjie(State Key Laboratory of Power Transmission Equipment&System Security and New Technology(Chongqing University),Chongqing 400044,China)

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市400044

出　　处：《电力系统自动化》2024年第14期79-90,共12页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(52077017)。

摘　　要：传统线路增容方式面对季节性短时高峰负荷时存在线路整体利用率低、紧急功率支撑能力差等问题。因此,文中以功能虚拟化为核心,研究了传统配电馈线与储能元件融合的虚拟配电馈线功能架构,利用双端储能元件搭建虚拟电能传输通道,以应对季节性短时高峰负荷、延缓传统线路增容改造工程,并在非高峰时期提供紧急功率支撑和辅助服务功能,提高储能元件整体利用率。为充分挖掘虚拟配电馈线的灵活传输和紧急功率支撑潜力,提出了配电网线路增容优化配置模型,在保证经济性和满足高峰负荷需求的前提下,优化虚拟配电馈线储能配置。算例研究表明,虚拟配电馈线能够有效延缓传统线路增容改造工程、应对季节性短时高峰负荷;对于线路负荷增长较稳定、线路长度较长和设计延缓增容年限较短的配电区域,虚拟配电馈线的优势更加凸显。The traditional line capacity expansion method suffers from the low overall utilization rate of lines and poor power support ability during a contingency when facing seasonal short-term peak loads.Therefore,with the function virtualization as the core concept,this paper studies the functional architecture of virtual distribution feeders that integrate traditional distribution feeders with energy storage components.By using paired energy storage components to construct a virtual power transmission channel,the virtual distribution feeders address seasonal short-term peak loads,delay the conventional line capacity expansion project,and provide emergency power support and auxiliary service functions during non-peak periods to improve the overall utilization rate of energy storage components.In order to further fulfill the flexible transmission and emergency power support potential of virtual distribution feeders,an optimal configuration model for line capacity expansion in distribution network is proposed to optimize the energy storage configuration for virtual distribution feeders while ensuring economy feasibility and meeting peak load demand.Case studies show that the virtual distribution feeders can effectively delay the traditional capacity expansion projects and cope with the seasonal short-term peak loads.For areas with relatively stable load growth,or long lines and short designed delay years for capacity expansion,the advantages of virtual distribution feeders are more noticeable.

关 键 词：储能 虚拟配电馈线 季节性短时高峰负荷 线路增容 优化配置 

分 类 号：TM75[电气工程—电力系统及自动化]