摘要
针对数字高压表自动化计量精度不足问题,本文介绍了一种新型配电系统多层级交直流数字高压表自动化计量校准方法。该方法架设新型配电系统多层级交直流电网架构,并分析数字高压表在新型配电系统多层级交直流电网内的运行原理后,通过基于平均值原理的数字高压表自动化计量误差计算方法,获取高压表自动化计量新型配电系统多层级交直流电网电压误差数值,再设计高压表自动化计量校准装置后,并以该新型配电系统多层级交直流电网电压误差数值为基础,计算数字高压表自动化计量校准系数,利用该校准系数实现数字高压表自动化计量校准,同时分析数字高压表不确定度后,依据该不确定度对数字高压表自动化计量校准进行进一步优化,使数字高压表自动化计量结果更加精准。实验表明:该方法计算新型配电系统多层级交直流电网电压误差数值较为准确,可有效对数字高压表自动化计量进行校准,应用效果较为显著。
In response to the problem of insufficient automatic measurement accuracy of digital high-voltage meters,this article introduces a new multi-level AC/DC digital high-voltage meter automatic measurement calibration method for distribution systems.This method establishes a multi-layer AC/DC power grid architecture for a new distribution system,analyzes the operating principle of digital high-voltage meters in the multi-layer AC/DC power grid of the new distribution system,and obtains the voltage error value of the new distribution system's multi-layer AC/DC power grid through the calculation method of automatic measurement error of digital high-voltage meters based on the average value principle.After designing an automatic measurement calibration device for highvoltage meters,Based on the voltage error values of the multi-layer AC/DC power grid in the new distribution system,the calibration coefficient for automatic measurement of digital high-voltage meters is calculated.This calibration coefficient is used to achieve automatic measurement and calibration of digital high-voltage meters.At the same time,after analyzing the uncertainty of digital highvoltage meters,further optimization and optimization of automatic measurement and calibration of digital high-voltage meters are carried out based on this uncertainty,making the automatic measurement results of digital high-voltage meters more accurate.The experiment shows that this method is more accurate in calculating the voltage error value of the multi-layer AC/DC power grid in the new distribution system,and can effectively calibrate the automatic measurement of digital high-voltage meters.The application effect is significant.
作者
侯永辉
王赛爽
李帅
贾红斌
HLU Yonghui;WANG Saishuang;LI Shuai;JIA Hongbin(Henan Institute of Measurement and Testing Science Zhengzhou 450000,China;North China University of Water Resources and Hydropower Zhengzhou 450000,China)
出处
《自动化与仪器仪表》
2024年第2期250-254,共5页
Automation & Instrumentation
基金
2023年河南省市场监督管理局科技攻关项目,项目名称:基于线性度分析方法的高电压溯源研究及标准研制(2023sj09)。
关键词
新型配电系统
多层级
交直流
数字高压表
自动化计量
校准方法
new distribution system
multi level
AC and DC
digital high-voltage meter
automated measurement
calibration method
