摘要
2013年开始天津电力公司开展了计量资产全寿命周期管理,其中智能电能表的故障发生预测、供应商选择决策对于提高资产质量来说至关重要。使用故障树分析法将电能表故障归类,建立电能表可靠性的混合威布尔分布模型,对电能表寿命进行预测。结果显示:09版电能表在2.5 a后进入故障高发期,平均寿命约为1036 d;制约寿命的主要原因是电池故障;利用本模型对比多家供应商的产品,结果为供应商产品选择与改进提供了参考。
Tianjin electric power company adopted life cycle management of measurement assets since 2013,and the fault prediction of smart watt-hour meter and decision-making of supplier were very important to improve the quality of assets.The fault tree analysis method was used to classify the faults of watt-hour meters,and a hybrid Weibull distribution model of watt-hour meter reliability was established to predict the lifecycle of watt-hour meters.The results show that the 09 version of watt-hour meters would enter a period of high failure rate after 2.5 years,and its average life is about 1036 days.The main reason that impacted the life is battery failure.The model was used to compare the products of some suppliers,and the results provide a reference for product selection and improvement.
作者
滕永兴
曹国瑞
杨霖
钟睿君
朱逸群
李祺
TENG Yongxing;CAO Guorui;YANG Lin;ZHONG Ruijun;ZHU Yiqun;LI Qi(State Grid Tianjin Electric Power Research Institute,Tianjin 300384,China;School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China)
出处
《电气传动》
2021年第1期61-66,共6页
Electric Drive
基金
国家自然科学基金(61573253)
国网公司总部科技项目(KJ16-1-43)。
关键词
混合威布尔分布
故障树
电能表
寿命预测
可靠性评价
mixed Weibull distribution
fault tree
watt-hour meters
life prediction
reliability evaluation
