Accurate prediction of ultra-short-term power of offshore wind farm is an important means to ensure the safe operation of offshore wind power system. Because offshore wind power has the characteristics of low sea level roughness and dense layout of wind turbines
its power generation is significantly affected by wake. An ultra-short-term power prediction method for offshore wind farms considering wake effect is proposed. Firstly
the weather research and forecasting model (WRF) coupled with the wind farm parameterization (WFP) is used to quantitatively evaluate the wake effect between adjacent offshore wind farms
and the obtained wake quantification index is used as the input data of the prediction model. Then
on the basis of considering wake effect
the prediction models of spatio-temporal graph convolutional network
spatially adaptive feature modulation module (SAFM) and partial convolutional (PConv) based on learnable adjacency matrix are established. Finally
the proposed prediction method is applied to an adjacent offshore wind farm group in Jiangsu Province to quantitatively analyze the wake effect between wind farms. The example shows that the proposed method can significantly improve the power prediction accuracy of offshore wind farms and offer technical assistance for the high-quality advancement of offshore wind power.
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Key Laboratory of Modern Power System Simulation Control and New Green Energy Technology of Ministry of Education (Northeast Electric Power University)
School of Control and Computer Engineering, North China Electric Power University
China Nuclear Power Engineering Co., Ltd. Zhengzhou Branch
Longyuan(Beijing)Wind Power Engineering Technology Co., Ltd.
College of Electrical Engineering, Guizhou University