电测与仪表2023，Vol.60Issue(12)：189-195,7.DOI:10.19753/j.issn1001-1390.2023.12.028
基于系统寿命分布的智能电能表时钟电池欠压预测研究
Research on undervoltage prediction of clock battery for smart electricity meters based on system life distribution
摘要
Abstract
The battery undervoltage fault is common in the field operation of smart electricity meters.Due to the diverse causes of battery undervoltage and reliability data sources,it is difficult to carry out quantitative evaluation of battery und-ervoltage in field operation,and there is still a lack of engineering-applicable clock battery undervoltage evaluation and prediction methods.This method sorts out the reliability logic relationship of each component unit from the clock battery circuit level and constructs a system reliability model of the clock battery circuit for the battery undervoltage fault mode,then,a time-varying weight model for system life distribution and a method for undervoltage prediction of clock battery based on system reliability synthesis theory are innovatively proposed.It realizes the comprehensive utilization of unit per-formance degradation data,life data and life distribution information to predict the trigger time of clock battery undervolt-age event and solves the difficult problem of quantitative evaluation of the battery undervoltage of clock of electricity meter under the condition of diversity of reliability information of the constituent units.Finally,an engineering example is used to verify the effectiveness of this method.关键词
电能表/时钟电池/电池欠压/系统寿命分布/系统可靠性综合Key words
electricity meter/clock battery/battery undervoltage/system life distribution/system reliability synthesis分类
信息技术与安全科学引用本文复制引用
朱毓,金耀,陶琳,鲍震峰,龚国庆,周尧..基于系统寿命分布的智能电能表时钟电池欠压预测研究[J].电测与仪表,2023,60(12):189-195,7.基金项目
国网安徽省电力有限公司科技项目(SGAHXT00TKJS2000033) （SGAHXT00TKJS2000033）
