一种变电站计算机监控系统寿命的评估方法Assessment Method for Life Cycle of Substation Computer Monitoring Systems
钱肖,朱英伟,刘栋
QIAN Xiao1,2,ZHU Ying-wei 2
摘要(Abstract)：
提出了一种变电站计算机监控系统寿命的评估方法。该方法以厂商提供的电路板级的平均无故障时间为基础数据,将电路板间的逻辑关系映射为串并联关系,得出装置的平均无故障时间值。又以装置的平均无故障时间值为基础,计算系统的平均无故障时间,从而得出变电站的计算机监控系统寿命估计。以运行了12年的500 kV变电站的间隔层为研究对象,进行了可靠性分析,
This paper presents an assessment method for life cycle of substation computer monitoring systems.The mean time between failures of circuit board provided by manufacturers is used as basic data in this method.The logical relationship between boards is mapped for series and parallel relations and the MTBF value of the device is calculated.The MTBF of the system is calculated based on that of the device and the life cycle assessment for substation computer monitoring system is conducted.The bay level of a 500 kV substation,which has been in operation for 12 years is studied and the reliability analysis is carried out.
关键词(KeyWords)：
计算机监控系统;电网;寿命;估计
computer monitoring system;power grid;life cycle;assessment
基金项目(Foundation):
作者(Author):
钱肖,朱英伟,刘栋
QIAN Xiao1,2,ZHU Ying-wei 2
DOI: 10.19585/j.zjdl.2012.05.004
参考文献(References)：
- 卢昆祥.电子产品可靠性测试[M].天津:天津科学技术出版社,1987.
- CHEN ZEHUA,ZHENG HURONG.Lifetime distribution based degradation analysis[J].IEEE Transactions on Reliability,2005,54(1):3-10.
- J AYARAM J S R,GIRISH T.Reliability prediction through degradation data modeling using a quasi likeli hood approach[C]//Proceedings Annual Reliability and Maintainability Symposium.New York:Institute of Electrical and Electronics Engineers,2005.
- XU DI,ZHAO WENBIAO.Reliability prediction using multivariate degradation data[C]//Proceedings Annual Reliability and Maintainability Symposium.New York:Institute of Electrical and Electronics Engineers,2005.
- VLADIMIR CRK.Reliability assessment from degradation data[C]//Proceedings Annual Reliability and Maintainability Symposium.New York:Institute of Electrical and Electronics Engineers,2000.
- 姚立真.可靠性物理[M].北京:电子工业出版社,2004.
- 峁诗松,王玲玲.加速寿命试验[M].北京:科学出版社,1997.