基于智能电表的量测数据实时状态监测估计  

Research on State Estimation of Distribution Network Based on Smart Meter

作　　者：王坤 赵永生 赵爱华 余小飞 张纬 WANG Kun;ZHAO Yongsheng;ZHAO Aihua;YU Xiaofei;ZHANG Wei(State Grid Anhui Electric Power Co.,Ltd.,Hefei 230000,Anhui China;State Grid Anhui Electric Power Co.,Ltd.,Electric Power Research Institute,Hefei 230601,Anhui China;State Grid Anhui Electric Power Co.,Ltd.,Bozhou Power Supply Company,Bozhou 236800,Anhui China;State Grid Anhui Electric Power Co.,Ltd.,Fuyang Power Supply Company,Fuyang 236001,Anhui China)

机构地区：[1]国网安徽省电力有限公司,安徽合肥230000 [2]国网安徽省电力有限公司电力科学研究院,安徽合肥230601 [3]国网安徽省电力有限公司亳州供电公司,安徽亳州236800 [4]国网安徽省电力有限公司阜阳供电公司,安徽阜阳236001

出　　处：《粘接》2023年第1期177-181,共5页Adhesion

摘　　要：为实现配电网运行状态的实时估计,提出一种基于智能电表量测数据的状态估计方案。该方案使用部署在中低压变电站的PMU监视整个配电网的负载实时变化,将所取得的负载变化值平均分配给智能电表以提升测量值的时间分辨率,最后使用加权最小二乘法进行配电网状态估计。仿真结果表明该方案能够以较高更新速率提供较为准确的配电网运行状态信息。In order to realize the real-time estimation of the operating state of the distribution network,a state estimation scheme based on the measurement data of the smart meter is proposed.This solution uses PMUs deployed in low-and medium-voltage substations to monitor the real-time load changes of the entire distribution network,and evenly distribute the obtained load changes to smart meters to improve the time resolution of the measured values,and finally use the weighted least squares method for power distribution Net state estimation.The simulation results show that the scheme can provide more accurate information about the operation status of the distribution network at a higher update rate.

关 键 词：低压电网 状态估计 智能电表 最小二乘估计 相量测量单元 

分 类 号：TM930.114[电气工程—电力电子与电力传动]