刘勇,荣雪琴,卜树坡.基于Weibull分布的智能电能表寿命预计[J].电测与仪表,2019,56(3):148-152. Liu Yong,Rong Xueqin,Bu Shupo.Life expectancy of smart meter with Weibull distribution[J].Electrical Measurement & Instrumentation,2019,56(3):148-152.
基于Weibull分布的智能电能表寿命预计
Life expectancy of smart meter with Weibull distribution
The relationship between MTTF and failure rate is analyzed.The Weibull distribution failure rate is used to model the bathtub curve.The parameters of the Weibull distribution are estimated by the least squares method and the correlation coefficient method.The distribution curve of the reliability is obtained.The life table of the energy meter provides the theoretical basis.