电测与仪表2025，Vol.62Issue(3)：147-156,10.DOI:10.19753/j.issn1001-1390.2025.03.018
基于智能计量系统的配电网监测与状态估计方法研究
Research on distribution network monitoring and state estimation method based on intelligent metering system
摘要
Abstract
The smart electricity meter-based measurement can provide a new model for the management of power grid in the future.This paper presents a new state estimation method,which uses smart electricity meter measure-ment to monitor the distribution network.The analytical expressions required to calculate the uncertainty of voltage and power are derived,which is a function of the number of smart electricity meters and their accuracy characteris-tics.The transformer is modeled in order to fully apply the state evaluation results of low-voltage power grid to the state evaluation of medium-voltage power grid.The uncertainty propagation theory is used to coordinate the state e-valuation level to maximize the accuracy performance.The accuracy performance of different levels of state estima-tion of distribution system is given.The cloud architecture for interconnecting different voltage level evaluation mod-els is also introduced.The proposed method is tested in the simulation.The results show that the proposed method can not only ensure the evaluation accuracy,but also significantly reduce the calculation time.It is suitable for re-al-time state evaluation and monitoring of distribution network.关键词
智能计量/状态监测/智能电网Key words
intelligent metering/state monitoring/smart grid分类
信息技术与安全科学引用本文复制引用
王中敏,李振东,王琳,陈尧,崔胜胜..基于智能计量系统的配电网监测与状态估计方法研究[J].电测与仪表,2025,62(3):147-156,10.基金项目
国家电网青海公司科技项目(632807160031) （632807160031）
