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Typhoon-Induced Effects on Wind Power Generation of a Coastal Wind Farm Based on Wind Observations
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DOI：10.1002/ese3.70347.png)
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Abstract
En 中文
Guangdong Province, a significant wind energy producer in China, is frequently impacted by landing typhoons along its coastal areas. Therefore, it is crucial to analyze the characteristics and influencing factors of wind power generation during typhoons at coastal wind farms in Guangdong. This study examines power generation data from the Lingnan Wind Farm during Typhoon Chaba and calculates indexes including wind shear, temperature and pressure change. Results show that the average power generation of Lingnan Wind Farm was 44.4 MW/h during the study period, and when Typhoon Chaba approaches the wind farm within a proximity of less than 300 km, the average power generation increases by 43%. Conversely, when Chaba is more than 600 km away from the wind farm, the average power generation decreases by 10%. The analysis employing a random forest model identifies wind speed at 80 m height, 24-h pressure change, and pressure as the most influential factors throughout the study period. This underscores the significance of surface pressure and pressure variations at the wind farm for predicting wind power output at coastal wind farms during a typhoon process. The random forest model yields mean absolute error and root mean square error values of 9.4 MW/h and 11.6 MW/h, respectively, in the prediction of wind power generation.
Keywords:
24-h pressure change
landfalling typhoon
wind farm
wind power generation
wind speed
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