基于weibull分布的智能电能表可靠性预计

利用weibull分布与智能电能表故障数据信息对智能电能表进行可靠性预计。为了解决weibull分布参数估计困难等问题,首先将weibull分布的累积分布函数线性化,再采用最小二乘法拟合,然后利用EXCEL软件求得线性方程的斜率及截距,再经过运算,获得weibull分布的参数估计,据此可进行智能电能表可靠性预计。该方法简单易行,可应用于其他工程领域。

The Weibull distribution and fault data information of smartwatt-hourmeter are used to predict reliability of smart meter.In order to solve some problems of estimating the parameters of weibull distribution,the cumulative distribution function of Weibull distribution is linearized;the least square method is used to fit it;the slope and intercept of the linear equation are obtained by EXCEL software;and then the parameter estimation of Weibull distribution is obtained.Based on this,the reliability of smart watt-hour meter can be predicted.This method is simple and feasible and can be applied to other engineering fields.