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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Chaitrak, Kanticha
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Control & Systems Engineering Electrical & Electronics Engineering

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Comparison between the multi-shaft and the single-shaft combined cycle power plants Chaitrak, Kanticha; Paoprasert, Naraphorn; Anussornnitisarn, Pornthep
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 14, No 4: December 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v14.i4.pp2064-2071

Abstract

A multi-shaft system has been adopted by power plants in Thailand for decades; however, for newer units, single-shaft systems have become more popular. This paper compared reliability measures—the system means failure rate, system mean repair rate, and system unavailability indices—between multi-shaft and single-shaft combined cycle power plants (CCPPs). The results showed that the long-term system availability of one multi-shaft CCPP was higher than each of the single-shaft units by 40.70%. In addition, the multi-shaft unit had a 42.14% longer mean time to failure (MTTF) than the single-shaft unit. Finally, the multi-shaft CCPP had 34.59% higher expected capacity than that of the single-shaft system.
Co-Authors Anussornnitisarn, Pornthep Paoprasert, Naraphorn