摘要
大批量智能电能表已经在线运行,积累了丰富的现场运行数据;如何在电能表批量上线前,拦截潜在缺陷,提前暴露可靠性问题,激发不易定位和不易复现的故障现象,变得尤为关键;利用电能表现场运行大数据分析结果,理清电能表现场运行主要的故障模式、失效机理以及工作微环境特征;通过失效分析获得其典型失效机理,统计电能表的主要缺陷类型和敏感应力;通过分析电能表的环境剖面和任务剖面等全生命周期的可靠性数据,借助于故障发生的背景信息,提出了基于失效物理的电能表故障定位、故障复现试验方法;通过一些实际评价案例,说明了该方法的实施过程和应用效果,为电能表的验收评价、现场故障分析和批量管理提供了一种有效的技术手段。
A large number of smart electricity energy meters have been running online and accumulated rich on-site operation data.How to find out potential defects,expose reliability problems in advance,and activate fault phenomena which are not easy to detect and reappear before they are launched online in batches are becomes more and more important.The main failure modes,failure mechanisms and micro environment characteristics of the on-site operation of the electricity energy meter are clarified by using the big data analysis results of the on-site operation of the electricity energy meter.Typical failure mechanisms are obtained by failure analysis,and the main defect types and sensitive stresses of the electric energy meter are summarized.By analyzing the life cycle reliability data such as environment profile and mission profile of the electricity energy meter,and with the help of background information of fault occurrence,a fault location and fault recurrence test method based on failure mechanism is proposed.Through some practical evaluation cases,the implementation process and application effect of the excitation method are illustrated.The method provides an effective technical means for the acceptance evaluation,on-site fault analysis and batch management of electric energy meters.
作者
陈亮
黄友朋
路韬
党三磊
张捷
何胜宗
CHEN Liang;HUANG Youpeng;LU Tao;DANG Sanlei;ZHANG Jie;HE Shengzong(Measurement Center of Guangdong Power Grid Co.,Ltd.,Guangzhou Guangdong 510062,China;The Fifth Electronics Research Institute of Ministry of Industry and Information Technology,Guangzhou Guangdong 510610,China)
出处
《电子器件》
CAS
北大核心
2021年第4期946-952,共7页
Chinese Journal of Electron Devices
基金
广东电网有限责任公司科技项目(GDKJXM20185871)。
关键词
智能电能表
故障激发
试验
失效
缺陷
smart electricity energy meter
fault excitation
test
failure
defect
