Hurricane Risk Assessment of Power Distribution Systems: Effects of Wind Direction
Publication: Natural Hazards Review
Volume 22, Issue 4
Abstract
This paper presents a framework for the risk assessment of urban power distribution systems under hurricane hazard, focusing on the effects that both line orientation and hurricane time history have on the overall risk assessment. In the proposed methodology, the necessary steps to assess risk (hazard, exposure, vulnerability) are presented. Wind hazard is briefly described considering hurricane events as the basis for the analysis of both wind speed and wind direction. The structural vulnerability of wood poles is computed based on the angle of attack of the wind load and the module of rupture of the pole; these results are used to define the damage probability distribution. Lastly, a case study of the expected losses computed with a probabilistic risk analysis for the power distribution network of Cancun, Mexico, is presented, showcasing both the applicability of the methodology to city-wide networks and the importance of wind direction on the financial risk assessment of distribution networks.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The first author thanks CONACYT for its support during his graduate studies.
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Published In
Natural Hazards Review
Volume 22 • Issue 4 • November 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Dec 16, 2019
Accepted: Jul 1, 2021
Published online: Aug 26, 2021
Published in print: Nov 1, 2021
Discussion open until: Jan 26, 2022
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