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Reliability optimisation using harmony search algorithm under performance and budget constraints

Author

Listed:
  • Abdelkader Zeblah
  • Eric Chatelet
  • Farouk Yalaoui
  • Mohamed El Samrout
  • Yamani Massim

Abstract

The redundancy optimisation problem is a well-known NP hard problem that involves the selection of components (elements) and redundancy levels to maximise system reliability, given different system-level constraints such as cost and performance. This paper presents an efficient algorithm based on the Harmony Search Algorithm (HSA) to solve this optimisation problem. The HSA is a new nature-inspired algorithm which mimics the improvisation process of music players. The problem considered in testing our algorithm is limited to the binary series-parallel system, where the problem consists of a selection of elements and redundancy levels. The proposed approach has the advantage to allow power components with different parameters to be allocated in power systems. To allow fast reliability estimation, a Universal Moment Generating Function (UMGF) method is applied. A computer program has been developed to implement the UMGF and the HSA. An illustrative example is presented.

Suggested Citation

  • Abdelkader Zeblah & Eric Chatelet & Farouk Yalaoui & Mohamed El Samrout & Yamani Massim, 2010. "Reliability optimisation using harmony search algorithm under performance and budget constraints," International Journal of Reliability and Safety, Inderscience Enterprises Ltd, vol. 4(2/3), pages 299-317.
    • Handle: RePEc:ids:ijrsaf:v:4:y:2010:i:2/3:p:299-317
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