摘要
低压配电网潮流计算是低压台区配电网运行态势感知的重要基础计算。基于低压台区配电网特点,尤其是其潮流计算量测数据的精度以及冗余特点,提出了基于电流量测和功率量测的潮流计算方法。对某台区实际数据的计算分析表明,基于电流量测的计算精度高于基于功率量测的计算精度。同时,通过用户的潮流计算电压、电流和智能电表量测的电压、电流对比,可以分析发现量测异常或用户用电异常情况。
The power flow calculation is an important basic calculation method for situational awareness of the low-voltage distribution network.Based on the characteristics of the low-voltage distribution network,especially the accuracy of power flow calculation and redundancy characteristics,a power flow calculation method based on the current measurement and power measurement is proposed.The result of the case using the actual data of a low-voltage distribution network shows that the accuracy of the current measurement is better than that of power measurement.At the same time,many erroneous data can be found by comparing the voltage and current data calculated from power flow with the voltage and current data from the consumer′s smart meter,which can be analyzed to find measurement abnormality consumption abnormality of users.
作者
张旭
夏燕
章江铭
章坚民
汪东耀
郑宇峰
ZHANG Xu;XIA Yan;ZHANG Jiangming;ZHANG Jianmin;WANG Dongyao;ZHENG Yufeng(State Grid Zhejiang Electric Power Research Institute,Hangzhou 310014,China;College of Automation,Hangzhou Dianzi University,Hangzhou 310018,China;State Grid Haining Power Supply Company,Haining Zhejiang 314000,China;Zhejiang Huayun Information Technology Co.,Ltd.,Hangzhou 310012,China)
出处
《浙江电力》
2020年第4期22-28,共7页
Zhejiang Electric Power
基金
国家电网有限公司总部科技项目(5600-201919168A-0-0-00)
国家自然科学基金项目(51677047)。
关键词
低压配电网
潮流计算
前推回代
功率量测
电流量测
误差分析
low-voltage distribution network
power flow calculation
back/forward sweep
power measurement
current measurement
error analysis
