Harmonizing the Mooring System Reliability of Multiline Anchor Wind Farms
- 6 October 2021
- journal article
- research article
- Published by ASME International in Asce-Asme Journal of Risk and Uncertainty in Engineering Systems Part B: Mechanical Engineering
- Vol. 7 (4)
- https://doi.org/10.1115/1.4052423
Abstract
One of many barriers to the deployment of floating offshore wind turbines is the high cost of vessel time needed for soil investigations and anchor installation. A multiline anchor system is proposed in which multiple floating offshore wind turbines (FOWTs) are connected to a single caisson. The connection of multiple FOWTs to a single anchor introduces interconnectedness throughout the wind farm. Previous work by the authors has shown that this interconnectedness reduces the reliability of the FOWT below an acceptable level when exposed to survival loading conditions. To combat the reduction in system reliability an overstrength factor (OSF) is applied to the anchors functioning as an additional safety factor. For a 100 turbine wind farm, single-line system reliabilities can be achieved using the multiline system with an OSF of 1.10, a 10% increase in multiline anchor safety factors for all anchors in a farm.Keywords
Funding Information
- National Science Foundation (1463273)
- National Science Foundation (1552559)
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