基于威布尔分布和极大似然法的智能电能表寿命预测方法研究

doi:10.3969/j.issn.1000-1158.2019.6A.027

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Abstract With the extensively use of the smart meter, it becomes necessary to predict the reliability and life of the smart meter instead of the traditional on-site inspection method. A prediction method of the failure rate and life of the smart meter based on Weibull distribution was proposed. The shape parameter and scale parameter of Weibull distribution were calculated through maximum likelihood estimation method. The proposal method was showed to be reliable by predicting the average life, rated life and median life based on the status from MDS system of State Grid Corporation. And the predicted results are possible to help the performance evaluation and rotation work of the smart meter in the future.

Key words： metrology smart meter life prediction Weibull distribution maximum likelihood estimation

Received: 10 September 2019

PACS:

TB971

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	Articles by authors
	WANG Rui
	YANG Fan
	YUAN Jing
	XU Xin-ping

Cite this article:

WANG Rui,YANG Fan,YUAN Jing, et al. A Life Prediction Method of the Smart Meter Based on Weibull Distribution and Maximum Likelihood Estimation[J]. Acta Metrologica Sinica, 2019, 40(6A): 125-129.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2019.6A.027 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2019/V40/I6A/125

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