基于智能电表的配电网电能计量方法研究
2021-09-16和振国
和振国
[摘 要]文章以基于智能电表的配电网电能计量方法为重点进行研究,分析基于智能电表的配电网电能计量工作意义,从互感器配置不合理、计量用互感器不能保证专用绕组、互感器二次负荷偏小、PT二次压降几个方面的影响深入说明和探讨影响基于智能电表的配电网电能计量准确性,阐述提高配电网电能计量准确性的途径,以进一步强化配电网电能计量效率与质量,旨在为相关研究提供参考资料。
[关键词]智能电表;配电网;电能计量;有效方法
[中图分类号]TM933.4 [文献标志码]A [文章编号]2095–6487(2021)07–0–02
Research on Electric Energy Metering Method of Distribution Network Based on Smart Meter
He Zhen-guo
[Abstract]Mainly focus on the research on the energy measurement method of distribution network based on smart meters, analyze the significance of the power measurement of the distribution network of smart meters, from the phenomenon of unreasonable configuration of transformers, measurement transformers cannot guarantee special windings, mutual inductances In-depth explanation and discussion of the influence of the secondary load of the PT on the small secondary load and the secondary voltage drop of the PT. The smart meter's power metering method for the distribution network is discussed, and the way to improve the accuracy of the smart meter's power metering in the power distribution network is described to further strengthen the smart meter. The power metering efficiency and quality of the distribution network is intended to provide reference materials for related research.
[Keywords]smart meter; distribution network; electric energy measurement; effective method
电能计量是电网公司工作的主要部分,然而由于多种因素造成的电能计量误差,影响着电力单位与电力客户之间的电费核算的公平和效率,不利于建立电力单位的良好形象。在智能电表运用条件下,要想为客户提供科学准确的电能量计量,电力企业要研究电能计量装置存在的误差现象,妥善处理电能计量问题,促使智能电表背景下的配電网电能计量方法足够准确与规范。
1 基于智能电表的配电网电能计量工作意义
智能电表是由电子元器件组成的,其工作原理是,电能计量芯片对被测交流电压和电流信息进行数字化处理,转变为脉冲频率信号发送到微处理器内,对脉冲信号进行分时累加,得到最终的总电量信息,保存在信息存储器内。微处理器具备显示功能与信息交换功能,借助电脑联网能够远程控制。电力企业人员可以进行远程抄表与远程送电,提高付费与预付费的处理效率。……
