Failure and maintenance data extraction from power plant maintenance management databases

Babakalli Alkali, Tim Bedford, John Quigley, Jim Gaw

Research output: Contribution to journalArticle

Abstract

Reliability analysis is plagued by a lack of accurate data, leading to suboptimal parameter estimates and inaccurate decisions about replacement intervals and preventive maintenance activities. This paper discusses some of the problems associated with failure and maintenance data extraction from coal-fired power plant maintenance databases. Data from four generating units were observed for over 5 years and a reasonable number of equipment classes reviewed. The coal mills are identified as significant equipment that affects the availability of the generating units. This paper describes the interplay of events which includes failure modes, failure, repair and operating time.

Original languageEnglish
Pages (from-to)1766-1776
Number of pages11
JournalJournal of Statistical Planning and Inference
Volume139
Issue number5
DOIs
Publication statusPublished - 1 May 2009

Keywords

  • reliability
  • competing risk
  • engineering
  • database

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