COMPARATIVE ANALYSIS OF WIND FARM POWER ASSESSMENT METHODS BASED ON MULTI-DIMENSIONAL MODELS

Zhang Ningning; Xiao Pengcheng; Tian Linlin; Zhao Ning; Zhao Jun; Zhao Zhangle

doi:10.19912/j.0254-0096.tynxb.2025-0331

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (7) : 108-115. DOI: 10.19912/j.0254-0096.tynxb.2025-0331

COMPARATIVE ANALYSIS OF WIND FARM POWER ASSESSMENT METHODS BASED ON MULTI-DIMENSIONAL MODELS

Zhang Ningning¹, Xiao Pengcheng², Tian Linlin², Zhao Ning², Zhao Jun¹, Zhao Zhangle¹

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Abstract

This paper proposes a novel power generation assessment method based on a three-dimensional wake model and a new equivalent wind speed calculation model, aimed at overcoming the insufficient accuracy of traditional methods caused by the inadequate consideration of wind shear and wake effects. The method is validated using measured power generation data from two typical wind farms under different wind conditions. The results indicate that for the Horns Rev wind farm with a conventional layout configuration, the novel power generation assessment method demonstrates significantly improved evaluation accuracy compared to conventional approaches. The error margins relative to measured data range from 2.43% to 7.68%, slightly outperforming the error range of 1.65% to 11.89% observed in large eddy simulation （LES） results. In the case of the closely-packed Lillgrund wind farm, the new assessment method exhibits superior comprehensive evaluation performance under two wind direction conditions when compared to traditional methods, while maintaining overall accuracy comparable to LES numerical simulation results. Overall, the new assessment method comprehensively considers the coupling effects of wind shear and wake interactions on the complex flow field within the wind farm, thereby enabling more accurate prediction of the actual power generation of the turbines.

Key words

wind farm / wind turbines / wakes / power assessment / Jensen model

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Zhang Ningning, Xiao Pengcheng, Tian Linlin, Zhao Ning, Zhao Jun, Zhao Zhangle. COMPARATIVE ANALYSIS OF WIND FARM POWER ASSESSMENT METHODS BASED ON MULTI-DIMENSIONAL MODELS[J]. Acta Energiae Solaris Sinica. 2026, 47(7): 108-115 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0331

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