Reliability assessment and activation sequence optimization of non-repairable multi-state generation systems considering warm standby

•Multi-state decision diagram method for reliability of power systems is proposed.•The method allows warm standby systems with any transition time distributions.•Successful start-up probabilities of warm standby units are considered.•The proposed method enables the automated calculation of system re...

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Vydané v:Reliability engineering & system safety Ročník 195; s. 106736
Hlavní autori: Jia, Heping, Ding, Yi, Peng, Rui, Liu, Hanlin, Song, Yonghua
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Barking Elsevier Ltd 01.03.2020
Elsevier BV
Predmet:
Activation sequence optimization
Decision analysis
Electric power generation
Energy consumption
Mathematical analysis
Multi-state decision diagram
Optimization
Power generation systems
Reliability analysis
Reliability assessment
Reliability engineering
State power
System reliability
Warm standby
Power generation systems
Reliability assessment
Activation sequence optimization
Warm standby
Multi-state decision diagram
ISSN:0951-8320, 1879-0836
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Shrnutí:•Multi-state decision diagram method for reliability of power systems is proposed.•The method allows warm standby systems with any transition time distributions.•Successful start-up probabilities of warm standby units are considered.•The proposed method enables the automated calculation of system reliability.•Optimal activation sequence of units is formulated to maximize system reliability. Warm standby has been widely applied to power generation systems to ensure safe and reliable operation with lower energy consumption and shorter leading time compared with the case of hot standby and cold standby, respectively. Since there is a series of intermediate states between perfect functioning and complete failure for generating units, multi-state characteristics emerge in power generation systems. Considering different parameters of state transition time distributions before and after activation of standby units, as well as generating units with arbitrary state transition time distributions, this entails a need to propose a reliability evaluation technique to handle multi-state power generation systems considering warm standby with arbitrary state transition time distributions. An analytic method based on multi-state decision diagram (MSDD) is proposed in this paper for the reliability analysis of the proposed systems considering successful activation probabilities of warm standby units. The MSDD-based technique is applicable to multi-state power generation systems with arbitrary state transition time distributions for generating units. The proposed method enables the automated calculation of the system reliability and expected surplus performance. Furthermore, the optimum sequence of activating warm standby units that maximizes system reliability is formulated based on the proposed automatic reliability calculation method. Illustrative examples are provided to validate the effectiveness of the proposed technique.
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ISSN:0951-8320
1879-0836
DOI:10.1016/j.ress.2019.106736