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Deciding the Maintenance Priority of Power Distribution System using Time-varying Failure Rate  

Lee, Hee-Tae (숭실대 공대 전기공학부)
Moon, Jong-Fil (기초전력연구원 전력시스템연구실)
Kim, Jae-Chul (숭실대 공대 전기공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers A / v.55, no.11, 2006 , pp. 476-484 More about this Journal
Abstract
The failure prediction and preventive maintenance for the equipment of nuclear power plant area using reliability-centered maintenance have been grown. On the other hand, the maintenance for power distribution system consists of time-based maintenance mainly. In this paper, the new maintenance algorithms for power distribution system are developed considering reliability indices. First of all, Time-varying failure rates are extracted from data accumulated at KEPCO using exponential distribution function and weibull distribution function. Next, based on the extracted failure rate, reliability for real power distribution system is evaluated for applying the effective maintenance algorithm which is the analytic method deciding the maintenance point of time and searching the feeder affecting the specific customer. Also the algorithm deciding the maintenance priority order are presented based on sensitivity analysis and equipment investment plan are analyzed through the presented algorithm at real power distribution system.
Keywords
Time-varying Failure Rate; Reliability; Maintenance Priority; Sensitivity Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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