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Abstract
This article explores the impacts of non-exponentially distributed failures on reliability of microgrids. Failure rate of some components such as power electronic converters is not constant, while they play a major role in microgrids. Consequently, their failure characteristics will affect the microgrid reliability. Hence, the conventional reliability evaluation approaches based on mean time to failure may introduce inaccurate inputs for decision making in planning and operation of microgrids. In this article, different approaches are employed for evaluating the reliability of microgrids with non-constant failure rates. The obtained results indicate that the system reliability remarkably depends on the failure characteristics and considering mean or steady-state probabilities instead of failure statistics may introduce erroneous reliability prediction results. Numerical case studies are provided to illustrate the impacts of failure characteristics on the availability of single power units as well as the reliability of microgrids.
Original language | English |
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Article number | 8892731 |
Journal | I E E E Systems Journal |
Volume | 14 |
Issue number | 2 |
Pages (from-to) | 2861-2872 |
Number of pages | 12 |
ISSN | 1932-8184 |
DOIs | |
Publication status | Published - Jun 2020 |
Keywords
- Reliability
- Microgrid
- Failure rate
- Wear-out failure
- Constant failure rate
- Availability
- Markov process
- Semi-markov process
- Method of device of stages
- LOLE
- wear-out
- exponential failure rate
- reliability
- bathtub-shaped failure rate
- availability
- Adequacy
- microgrid
- risk
- non-exponential failure rate
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Dive into the research topics of 'Reliability Evaluation in Microgrids with Non-exponential Failure Rates of Power Units'. Together they form a unique fingerprint.Projects
- 1 Finished
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REPEPS: REliable Power Electronic based Power System
Blaabjerg, F., Iannuzzo, F., Davari, P., Wang, H., Wang, X. & Yang, Y.
01/08/2017 → 01/12/2023
Project: Research