Offshore wind farm optimisation: a comparison of performance between regular and irregular wind turbine layouts
<p>Layout optimisation is essential for improving the overall performance of offshore wind farms. During the past 15 years, the use of yield optimisation algorithms has resulted in a transition from regular to more irregular farm layouts. However, since the layout affects many factors, yield o...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2023-07-01
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| Series: | Wind Energy Science |
| Online Access: | https://wes.copernicus.org/articles/8/1225/2023/wes-8-1225-2023.pdf |
| _version_ | 1797772889027510272 |
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| author | M. Sickler M. Sickler M. Sickler B. Ummels B. Ummels M. Zaaijer R. Schmehl K. Dykes |
| author_facet | M. Sickler M. Sickler M. Sickler B. Ummels B. Ummels M. Zaaijer R. Schmehl K. Dykes |
| author_sort | M. Sickler |
| collection | DOAJ |
| description | <p>Layout optimisation is essential for improving the overall performance of offshore wind farms. During the past 15 years, the use of yield optimisation algorithms has resulted in a transition from regular to more irregular farm layouts. However, since the layout affects many factors, yield optimisation alone may not maximise the overall performance. In this paper, a comparative case study is presented to quantify the effect of the wind farm layout on the overall performance of offshore wind farms. The case study was performed to investigate two performance indicators: power performance, using yield calculations with windPRO, and wake-induced tower fatigue, using the Frandsen model. It is observed that irregular wind farm layouts have a higher annual energy production compared to regular layouts. Their power production is also more persistent and less sensitive to wind direction, improving predictability and thus the market value of power output. However, one turbine location in the irregular layout has a 24 % higher effective turbulence level, leading to additional tower fatigue. As a result, fatigue-driven tower designs would require increased wall thicknesses, which would result in higher capital costs for all turbine locations. It is demonstrated in this study that layout optimisation using minimum inter-turbine spacing effectively resolves the induced wake issue while maintaining high-yield performance.</p> |
| first_indexed | 2024-03-12T21:58:14Z |
| format | Article |
| id | doaj.art-99d40b47d82b482aafebdde9028ef195 |
| institution | Directory Open Access Journal |
| issn | 2366-7443 2366-7451 |
| language | English |
| last_indexed | 2024-03-12T21:58:14Z |
| publishDate | 2023-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Wind Energy Science |
| spelling | doaj.art-99d40b47d82b482aafebdde9028ef1952023-07-25T13:19:13ZengCopernicus PublicationsWind Energy Science2366-74432366-74512023-07-0181225123310.5194/wes-8-1225-2023Offshore wind farm optimisation: a comparison of performance between regular and irregular wind turbine layoutsM. Sickler0M. Sickler1M. Sickler2B. Ummels3B. Ummels4M. Zaaijer5R. Schmehl6K. Dykes7Ventolines B.V., P.J. Oudweg 4, 1314 CH Almere, the NetherlandsFaculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, the NetherlandsDTU Wind Energy, Frederiksborgvej 399, 4000 Roskilde, DenmarkVentolines B.V., P.J. Oudweg 4, 1314 CH Almere, the NetherlandsFaculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN Delft, the NetherlandsFaculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, the NetherlandsFaculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, the NetherlandsDTU Wind Energy, Frederiksborgvej 399, 4000 Roskilde, Denmark<p>Layout optimisation is essential for improving the overall performance of offshore wind farms. During the past 15 years, the use of yield optimisation algorithms has resulted in a transition from regular to more irregular farm layouts. However, since the layout affects many factors, yield optimisation alone may not maximise the overall performance. In this paper, a comparative case study is presented to quantify the effect of the wind farm layout on the overall performance of offshore wind farms. The case study was performed to investigate two performance indicators: power performance, using yield calculations with windPRO, and wake-induced tower fatigue, using the Frandsen model. It is observed that irregular wind farm layouts have a higher annual energy production compared to regular layouts. Their power production is also more persistent and less sensitive to wind direction, improving predictability and thus the market value of power output. However, one turbine location in the irregular layout has a 24 % higher effective turbulence level, leading to additional tower fatigue. As a result, fatigue-driven tower designs would require increased wall thicknesses, which would result in higher capital costs for all turbine locations. It is demonstrated in this study that layout optimisation using minimum inter-turbine spacing effectively resolves the induced wake issue while maintaining high-yield performance.</p>https://wes.copernicus.org/articles/8/1225/2023/wes-8-1225-2023.pdf |
| spellingShingle | M. Sickler M. Sickler M. Sickler B. Ummels B. Ummels M. Zaaijer R. Schmehl K. Dykes Offshore wind farm optimisation: a comparison of performance between regular and irregular wind turbine layouts Wind Energy Science |
| title | Offshore wind farm optimisation: a comparison of performance between regular and irregular wind turbine layouts |
| title_full | Offshore wind farm optimisation: a comparison of performance between regular and irregular wind turbine layouts |
| title_fullStr | Offshore wind farm optimisation: a comparison of performance between regular and irregular wind turbine layouts |
| title_full_unstemmed | Offshore wind farm optimisation: a comparison of performance between regular and irregular wind turbine layouts |
| title_short | Offshore wind farm optimisation: a comparison of performance between regular and irregular wind turbine layouts |
| title_sort | offshore wind farm optimisation a comparison of performance between regular and irregular wind turbine layouts |
| url | https://wes.copernicus.org/articles/8/1225/2023/wes-8-1225-2023.pdf |
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