Short-Term Reliability Analysis of Power Plants with Several Combined Cycle Units

Lisnianski, Anatoly; Laredo, David; Haim, Hanoch Ben

doi:10.1007/978-3-319-63423-4_15

Cited by 1 publication

(1 citation statement)

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“…Then these UGFs are integrated at the system level to obtain MSS reliability. 18,22 In addition, considering factors such as redundant configurations 23,24 and aging effects 25,26 for multi-state systems, which are introduced to contribute to the model fidelity, are also frequently discussed and researched issues in MSS reliability and risk assessment. Through sensitivity analysis, valuable information and constructive suggestions for appropriate decisions can be provided for system design and engineering improvement.…”

Section: Introductionmentioning

confidence: 99%

Multi‐state reliability assessment for shipboard hybrid turbine‐diesel generation system with redundancy and aging effects

Shi

Xiong

et al. 2023

Quality & Reliability Eng

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Complex system structures, dynamic energy demands, and tough operating environment pose a huge challenge to reliability assessment and risk control.Taking multi-state, redundant structure and aging impact into account, reliability assessment for shipboard hybrid turbine-diesel generation system is studied. This work adopts a comprehensive method combining the Markov method and universal generating function (UGF): the Markov method is used for reliability modeling at the unit level, and then synthesized and calculated through UGFs to obtain system-level reliability. Based on the above methodology, this work presents a multi-state system (MSS) model with different configuration structures and failure rate types, then compares the availability evaluation results of the single power generation system, the hybrid power system with redundancy and aging effects. The results show that (1) redundant design effectively improves system availability to meet power supply requirements; (2) in the case of system aging and imperfect repair, redundant configuration and power distribution can significantly improve the availability of power supply to be almost unaffected by aging, and effectively reduce the risk of performance failure; and (3) when the redundancy is applied, the system power supply availability is not sensitive in the high-value range of the redundant installed capacity ratio, but sensitive in the high-value range of effective coefficient about power compensation control.

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