Imperfect Preventive Maintenance Plan of Generation Unit Using Quasi-renewal Theory

Quasi-renewal 이론을 이용한 발전설비의 불완전한 유지보수 예방정비 계획

  • 김형준 (한양대 공대 전기공학과) ;
  • 변융태 (한양대 공대 전기공학과) ;
  • 김진오 (한양대 공대 전기공학과) ;
  • 이준경 (세종기술 주식회사)
  • Published : 2008.05.01


Recently, the research of PM (Preventive Maintenance) method on the RCM(Reliability-Centered Maintenance) of the system equipment is being actively advanced for a few years. For the most of the current power equipment maintenance, the state of the equipment after maintenance is assumed to be becoming 'as good as new ones' state. However, the state of the power equipment is maintained like the states of the between 'as good as new ones' and 'as bad as old ones' by imperfect maintenance that implies the life decrease of the equipment by frequent breakdown, the error of maintenance process, and so on. So, the Maintenance method considering the real case has to reflect Imperfect maintenance than perfect maintenance. This paper suggests the Preventive Maintenance method by using Quasi - Renewal Theory for the gas turbine equipment as deliberating the imperfect maintenance for the real cases.


  1. I. J. Rehmert, Availability Analysis for theQuasi-renewal Process;2000, Ph.D. Dissertation, Virginia Polytechnic Institute and State University,Blacksburg, VA
  2. J. Moubray, Reliability-Centered Maintenance, Butterworth-Heinemann, 1997
  3. R. Billinton and R. N. Allan, Reliability Evaluation of Engineering System, 2nd Edition, Plenum Press, New York, 1992
  4. M. Rausand, A. Hoyland, System Reliability Theory, Wiley-Interscience, 2004
  5. M. Ross, Stochastic Processes, 2nded, New York, wiley, 1996
  6. S. Yang, "Quasi-renewal Approach to Spares Provisioning for Deteriorationg Systems under Imperfect Maintenance Reliability Centered Maintenance," IEEE, pp. 577-585, 2004
  7. S. Yang, T. Lin, "On the Application of Quasi-renewal Theory in Optimization of Imperfect Maintenance Policies" IEEE, pp. 410-415, 2005
  8. C. Richard. Casady, I. M. Iyoob, K. Schneider. Edward A, Pohl. "A Generic Model of Equipment Availability Under Imperfect Maintenance," IEEE Transactions on Reliability , vol. 54, no. 4, December 2004
  9. M. Rausand, Reliability centered maintenance, Reliability Engineering and System Safety 60 pp. 121, 1998
  10. T. Nakagawa, Sequential Imperfect Preventive Maintenance Policies, IEEE Transactions on Reliability, 37, 1998