考虑节点响应故障概率的10 kV双环网自愈系统节点优化配置  

Optimization of Node Configuration in 10 kV Dual-Ring Self-Healing Distribution Networks Considering Node Response Fault Probability

作　　者：史媛 SHI Yuan(State Grid Shibei Power Supply Company,SMEPC,Shanghai 200072,China)

机构地区：[1]国网上海市电力公司市北供电公司,上海200072

出　　处：《电力与能源》2024年第4期430-434,446,共6页Power & Energy

摘　　要：10 kV双环网自愈系统的配置大大提升了配电网的自愈能力和供电可靠性,但配电网络中节点数量的增加也使得节点动作故障风险增大,节点数量过少不利于双环网供电效率最大化,节点数量过多则降低供电网络整体可靠性。基于对单个节点响应故障概率的研究,引入事件概率模型,建立兼顾单因风险和迭代风险的双环网配电站的节点响应故障风险概率模型;基于不同系统运行方式,建立了双环网自愈系统中配电站的可靠性增量模型;在考虑响应故障风险概率和可靠性双叠加的基础上,引入系统容量、负荷平衡等因素,建立了配电网自愈系统节点配置优化模型。The configuration of 10 kV dual-ring self-healing systems significantly enhances the self-healing capa bility and supply reliability of distribution networks.However,the increasing number of nodes in distribution networks also increases the risk of node operation faults.Too few nodes hinder the maximization of supply efficiency in dual-ring networks,while too many nodes decrease the overall reliability of the supply network.Based on research into the fault probability response of individual nodes,this paper introduces an event probability model and establishes a dual-ring distribution station node response fault risk probability model that considers single-factor and iterative risks.Furthermore,based on different system operation modes,a reliability increment model for distribution stations in dual-ring self-healing systems is developed.Building upon the additive combination of response fault risk probability and reliability,factors such as system capacity and load balance are introduced to establish a node configuration optimization model for distribution network self-healing systems.

关 键 词：配电网自愈系统 响应故障风险 可靠性增量 节点优化配置 系统容量 负荷平衡 

分 类 号：TM76[电气工程—电力系统及自动化]