基于双芯智能电表的时钟电池容量监测应用设计  

Application design of clock battery capacity monitoring based on dual core smart meter

作　　者：张本松 吴昊文 何恒靖 刘林 陈爱华 乔舒雅 ZHANG Bensong;WU Haowen;HE Hengjing;LIU Lin;CHEN Aihua;QIAO Shuya(Digital Grid Research Institute,CSG,Guangzhou 510700,China;Zhejiang Chint Instrument&Meter Co.,Ltd.,Hangzhou 310052,China)

机构地区：[1]南方电网数字电网研究院有限公司,广东广州510700 [2]浙江正泰仪器仪表有限责任公司,浙江杭州310052

出　　处：《电力科学与技术学报》2023年第2期240-247,共8页Journal of Electric Power Science And Technology

基　　金：中国南方电网有限责任公司科技项目(670000KK52200011)。

摘　　要：智能电能表时钟电池能够在掉电状态下为表内时钟芯片提供电源,而时钟电池过早欠压是近年来电表常见故障之一。为此,通过对电表电池的恒温退化数据进行分析,提出一种对表内电池进行电量检验与预测的经验方法,并以国产带操作系统的新型双芯智能电表为基础,设计一个进行表内时钟电池在线电量监测的管理芯操作系统应用。此应用对时钟电池电量进行定期检测,给出近似的电池寿命预计,并上报异常情况。通过实验分析表明,该应用可有效地对电池容量进行监控。The smart meter clock battery can provide power for the clock chip in the meter during the power down state,and premature undervoltage of the clock battery is one of the common faults of the meter in recent years.To this end,through the analysis of the constant temperature degradation data of the clock battery,an empirical method to test and predict the battery power in the meter is proposed.Then,based on the domestic new dual-core smart meter with operating system,a management core operating system application is design for on-line power monitoring of the clock battery in the meter.This application regularly detects the battery power of the clock,gives an approximate battery life estimate,and reports abnormal conditions.The experimental analysis shows that the application can effectively monitor the battery capacity.

关 键 词：双芯智能表 智能表应用 时钟电池 退化数据 

分 类 号：TM933[电气工程—电力电子与电力传动]