Reliability Analysis of European Power System Assets
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Author / Producer
Date
2023
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
Large interconnected systems can be severely destabilized due to failures of interconnector lines and large generating units. Therefore, identifying the failure behavior of critical assets can be invaluable for modeling and research purposes. In this work, we analyze outages of European generation and transmission system assets, obtained from the ENTSO-E transparency platform. We analyze the data using Markov chain and analytical methods. Our results show that the reliability of generating units is primarily impacted by the technology type and country of origin. Nuclear and fossil units have the lowest availability, resulting from their high unavailability due to planned and forced outages, respectively. Furthermore, we observe that units with high frequency of planned transitions, tend to have a low frequency of forced transitions, and vice versa. This emphasizes the positive impact of preventive maintenance measures in ensuring the safe and reliable operation of generating units. Regarding transmission system assets, we find that AC interconnectors are substantially more reliable than DC interconnectors. Additionally, we observe that internal lines, transformers, and substations are more available compared to interconnector lines. The results obtained from this work can provide important insights for the operation of European assets, helping system operators and researchers identify key vulnerabilities.
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Publication status
published
Book title
Proceedings of the 33rd European Safety and Reliability Conference (ESREL 2023)
Journal / series
Volume
Pages / Article No.
3127 - 3128
Publisher
Research Publishing
Event
33rd European Safety and Reliability Conference (ESREL 2023)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Transmission grid; Generating units; European power system; Availability; Transition rates
Organisational unit
09452 - Sansavini, Giovanni / Sansavini, Giovanni
Notes
Conference lecture held on September 6, 2023