中国电机工程学报2026，Vol.46Issue(2)：569-581,中插10,14.DOI:10.13334/j.0258-8013.pcsee.241795
考虑N-1故障重构下的配电网PMU优化配置方法
An Optimal PMU Allocation Method for Distribution Networks Under Considering N-1 Fault Reconfiguration
摘要
Abstract
The operation of new distribution networks incorporating large-scale photovoltaic systems and flexible loads are becoming increasingly complex.The optimal configuration of synchrophasor measurement unit for distribution network(D-PMUs)can provide effective synchronized measurement data for coordinated scheduling and control.However,when the distribution network experiences an N-1 contingency and undergoes reconfiguration,the original configuration scheme may fail to meet the requirements of scheduling and control.Therefore,an D-PMU configuration optimization method considering N-1 contingency reconfiguration is proposed.This method introduces a node vulnerability index that accounts for node voltage loss and network topology.To ensure the observability of the distribution network after fault reconfiguration,an D-PMU configuration optimization model considering N-1 contingency reconfiguration is proposed.The network topology is acquired through distribution network reconfiguration.Observability constraints under N-1 fault conditions are established,taking into account the impact of limited D-PMU channels.The model also incorporates measurement information from supervisory control and data acquisition(SCADA)systems and advanced measurement infrastructure(AMI).Furthermore,a unified D-PMU configuration optimization model is established with comprehensive consideration of economic efficiency,full-network observability under normal conditions,zero-injection nodes,observability under N-1 contingency reconfiguration,D-PMU channel limitations,and existing traditional measurements.The feasibility and effectiveness of the proposed method are verified by using the IEEE 33-node and IEEE 69-node test systems.关键词
N-1故障重构/优化配置/零注入节点/通道限制/传统量测Key words
N-1 fault reconfiguration/configuration optimization/zero-injection node/channel limitation/traditional measurement分类
信息技术与安全科学引用本文复制引用
晁婉萌,刘灏,毕天姝,陈艳霞..考虑N-1故障重构下的配电网PMU优化配置方法[J].中国电机工程学报,2026,46(2):569-581,中插10,14.基金项目
国家电网有限公司科技项目(5400-202411177A-1-1-ZN).Project Supported by Science and Technology Project of State Grid Corporation of China(5400-202411177A-1-1-ZN). （5400-202411177A-1-1-ZN）
