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Wind resource assessment Offshore Fujian using 30-year wind estimates
Wenfei Xue1, Rongfu Li1, Weidong Ji1
1Goldwind Science & Technology Co., Ltd, Urumqi, China.
This study assessed offshore wind resources near Fujian, China, finding suitable conditions for wind power development. The analysis supports the selection of wind turbine classes based on measured wind characteristics and long-term predictions.
Area of Science:
- Renewable Energy
- Meteorology
- Oceanography
Background:
- China aims to expand offshore wind energy to meet coastal demand.
- Assessing wind resources is critical for successful offshore wind farm development.
Purpose of the Study:
- To conduct a comprehensive assessment of offshore wind resources near Fujian, China.
- To analyze wind characteristics and estimate long-term wind conditions for wind energy potential.
Main Methods:
- Deployed wind measurement devices at XiaPu and PingTan for one year.
- Analyzed wind speed, direction, shear, and turbulence intensity.
- Utilized an adaptive Measure-Correlate-Predict methodology for 30-year wind condition estimation.
Main Results:
- Wind energy density ranged from 3082.63 to 11753.52 kWh/m2/year.
- Optimal conditions for wind power were observed with lower turbulence and higher wind shear.
- Turbulence intensity remained below IEC Class A+ standards, with a 50-year extreme wind speed of 38.0m/s at 100m.
Conclusions:
- The Fujian offshore region exhibits significant wind energy potential.
- Recommended wind turbine class II, with a potential upgrade to IEC Class A+ due to ambient turbulence.
- Seasonal variations in wind shear and speed impact wind power generation potential.
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