基于电能计量管理系统数据分析的配电网线变关系校验方法  

Calibration Method of Line Transformer Relationship in Distribution Network Based on Data Analysis of Electric Energy Metering Management System

作　　者：宋宇 余永忠 梁旭常 汪毅 侯铁信 SONG Yu;YU Yongzhong;LIANG Xuchang;WANG Yi;HOU Tiexin(Foshan Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Foshan 528010,China;Wuhan Guoce D&T Co.,Ltd.,Wuhan 430223,China)

机构地区：[1]广东电网有限责任公司佛山供电局,佛山528010 [2]武汉国测数据技术有限公司,武汉430223

出　　处：《高电压技术》2021年第12期4461-4470,共10页High Voltage Engineering

基　　金：佛山供电局电量能量守恒下的计量适组计算(第一期)(030600KK52190250)。

摘　　要：准确计算配电网线变关系是均衡配电网负荷、提高线路运行可靠性的关键,长期以来依靠人工方式校验配电网线变关系的方式耗时耗力。因此,在大数据分析的基础上,运用电能量守恒的原理建立数学模型建模,提出了基于电能计量管理系统数据分析的线变关系校验方法。通过偏相关系数的大小和变化来校验线变关系的正确性并进行实例校验。结果表明,此校验方法能精确判断配电网线变关系的正确性,大大提高分析配电网海量运行数据的效率。根据所提出的配电网线变关系校验方法,对变电站多条10k V线路下的数据进行校验,准确率达97.8%。Accurate calculation of line transformer relationship in distribution network is the key to balance the load of distribution network and improve the reliability of line operation.For a long time,it is time-consuming and labor-consuming to rely on manual way to verify the line transformer relationship of distribution network.On the basis of big data analysis,we established a mathematical model based on the principle of electric energy conservation,and put forward a calibration method of line transformer relationship based on the data analysis of electric energy measurement management system.Through the size and change of partial correlation coefficient,the correctness of line transformer relationship was verified,and an example was given to verify.The results show that the verification method is accurate in judging the line transformer relationship of distribution network.It can greatly improve the efficiency of analyzing the massive operation data of distribution network,and solve the time-consuming and labor-consuming problem of manual mode.According to the proposed calibration method of line transformer relationship in distribution network,the data of different 10 kV lines in a substation are verified,and the accuracy is 97.8%.

关 键 词：配电网 线变关系 能量守恒 数据分析 偏相关 数据迭代 

分 类 号：TB971[一般工业技术—计量学] TM73[机械工程—测试计量技术及仪器]