Atmospheric stability affects wind turbine power in large offshore wind farms
- DOI
- 10.2991/iceep-16.2016.70How to use a DOI?
- Keywords
- offshore wind farm; atmospheric stability; sea surface roughness; Richardson gradient method; output power
- Abstract
With the rapid development of offshore wind power industry, it is significant to improve the accuracy of offshore wind energy assessment. Sea surface roughness and atmospheric thermal stability are main factors that influence the offshore wind energy. But at present, most researches on micro-scale aerodynamic field of wind farms are based on neutral atmospheric condition, few takes thermal stability into account; also, sea surface roughness is often set as a constant, which reduces the accuracy of offshore wind energy assessment. This paper researches the thermal stability of an offshore wind farm in Jiangsu Province, gives a suitable way to decide thermal stability for offshore wind farms. Also, it analyzes variation of output power of the turbines in a column under different thermal conditions, with roughness into account, to consider their impact on offshore wind farms. The result shows that when roughness is big enough, thermal stability has little influence on output power; while sea surface roughness is small enough, thermal stability has a dominant influence on output power.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Xiufang Peng AU - Yu Hu AU - Wen Xiang AU - Cang Xu AU - Feifei Xue PY - 2016/11 DA - 2016/11 TI - Atmospheric stability affects wind turbine power in large offshore wind farms BT - Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016) PB - Atlantis Press SP - 408 EP - 415 SN - 2352-5401 UR - https://doi.org/10.2991/iceep-16.2016.70 DO - 10.2991/iceep-16.2016.70 ID - Peng2016/11 ER -