电测与仪表2018，Vol.55Issue(5)：119-124,136,7.
继电保护装置的一种新型评估方法
A new evaluation method for relay protection device
摘要
Abstract
The evaluation of the economic life of the protection device can provide important decision basis for the secondary equipment condition maintenance and substation planning,which also can improve the competitive advantage of enterprises.Based on the theory of life cycle management,a new economic life evaluation model of protection device is proposed in this paper.Firstly,the concept of health index is introduced to calculate the actual failure rate of the device.The Weibull distribution function is used to fit the failure rate curve of the device.Secondly,it analyzes the other important factors,including the cost of the installation,the operation and maintenance,the decommissioning,the repair and failure risks.The life evaluation model is established with the daily average consumption as the criterion.Finally,taking an 110 kV substation protection device as a practical example,the optimal exit time is beforehand compared with that given by the factory.Considering the actual operating environment and the fault factors,the prediction result is reasonable,which also can be meaningful to the maintenance strategy of the secondary equipment and the planning of the substation.关键词
状态检修/生命周期成本/Weibull分布/健康指数/寿命评估Key words
condition-based maintenance/life cycle cost/Weibull distribution/health index/life assessment分类
信息技术与安全科学引用本文复制引用
徐岩,王士铭,刘婧妍,叶远波,谢民,黄太贵..继电保护装置的一种新型评估方法[J].电测与仪表,2018,55(5):119-124,136,7.基金项目
国家重点研发计划(2016YFB0900203) （2016YFB0900203）
