RESEARCH ON WIND RESOURCE ASSESSMENT OF WIND FARMS IN COMPLEX TERRAIN BASED ON MESO-MICRO-SCALE COUPLED UNSTEADY SIMULATION TECHNOLOGY

Ma Guolin; Li Jinzhui; Song Yilei; Tian Linlin; Liu Xiaoya; Zhao Ning

doi:10.19912/j.0254-0096.tynxb.2024-1001

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (10) : 642-654. DOI: 10.19912/j.0254-0096.tynxb.2024-1001

RESEARCH ON WIND RESOURCE ASSESSMENT OF WIND FARMS IN COMPLEX TERRAIN BASED ON MESO-MICRO-SCALE COUPLED UNSTEADY SIMULATION TECHNOLOGY

Ma Guolin¹, Li Jinzhui², Song Yilei¹, Tian Linlin¹, Liu Xiaoya², Zhao Ning¹

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Abstract

In this paper, a newly coupled meso-micro-scale technique is constructed based on the mesoscale Weather Research and Forecasting （WRF） model and Computational Fluid Dynamics （CFD） technology, which is applicable to the simulation of unsteady flow in wind farms in complex terrain. In particular, due to the different terrain resolutions used in mesoscale and microscale simulations, the paper proposes a meso-microscale terrain blending method to ensure high fidelity in the cross-scale transfer of boundary data. Taking two wind farms in Shanxi and Yunnan as examples, the impact of the terrain blending method on mesoscale data transmission is firstly analyzed, then the impact of the terrain on the wind profile in complex mountain wind farms is investigated, and finally, the strategy of wind turbine layout in wind farms is analyzed. The results show that the proposed method can effectively reflect the influence of mesoscale atmospheric conditions and microscale topography on wind resource distribution; compared with the WRF simulation method, the WRF-CFD method can control the mean absolute error of wind speed simulation within 1 m/s. The method can be further utilized for the load evaluation and operation control of wind turbines in complex terrain.

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wind farm / CFD / boundary condition / meso-micro-scale coupling / terrain blending

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Ma Guolin, Li Jinzhui, Song Yilei, Tian Linlin, Liu Xiaoya, Zhao Ning. RESEARCH ON WIND RESOURCE ASSESSMENT OF WIND FARMS IN COMPLEX TERRAIN BASED ON MESO-MICRO-SCALE COUPLED UNSTEADY SIMULATION TECHNOLOGY[J]. Acta Energiae Solaris Sinica. 2025, 46(10): 642-654 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1001

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