电测与仪表2024，Vol.61Issue(4)：198-205,8.DOI:10.19753/j.issn1001-1390.2024.04.028
基于混合威布尔模型的智能电能表可靠性评价方法
Reliability evaluation method of smart electricity meter based on mixed Weibull model
摘要
Abstract
In order to solve the problems of multiple fault types and single reliability evaluation of smart electricity meters,this paper proposes a reliability evaluation method based on hybrid Weibull model.Firstly,the fault type is classified based on the unit series relationship of smart electricity meters and fault events,the least square method is used to estimate the scale of the fault types and shape parameters of each unit,in combination with the median rank and the average rank,the cumulative failure probability of smart electricity meter is computed to improve model accuracy,and weight coefficient that fault type affecting the reliability of electricity meter is calculated through the entropy weight method.Therefore,the reliability evaluation method of smart electricity meter based on hybrid Weibull model is established.The example results show that the proposed method can accurately obtain the reliability evaluation of smart electricity meter under all kinds of fault types,and accurately obtain the reliability of smart electricity meter unit module.Compared with the existing meth-ods,the proposed method does not need a lot of prior knowledge,and is simple to implement and has higher accuracy.关键词
智能电能表/混合威布尔模型/熵权法/故障类型/可靠性评价Key words
smart electricity meters/mixed Weibull model/entropy weight method/fault types/reliability evaluation分类
信息技术与安全科学引用本文复制引用
黄瑞,刘小平,刘谋海,吕芳,谢雄,高云鹏..基于混合威布尔模型的智能电能表可靠性评价方法[J].电测与仪表,2024,61(4):198-205,8.基金项目
国家电网有限公司科技项目(5216AG20000D) （5216AG20000D）
