CONTROL STRATEGY FOR STABILIZING POWER FLUCTUATIONS BY UTILIZING LARGE ROTATIONAL INERTIA OF WIND TURBINE BLADE

Yang Huanhong; Zheng Ying; Jia Dajiang

doi:10.19912/j.0254-0096.tynxb.2025-0087

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (6) : 316-326. DOI: 10.19912/j.0254-0096.tynxb.2025-0087

CONTROL STRATEGY FOR STABILIZING POWER FLUCTUATIONS BY UTILIZING LARGE ROTATIONAL INERTIA OF WIND TURBINE BLADE

Yang Huanhong¹, Zheng Ying¹, Jia Dajiang²

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Abstract

A power smoothing strategy without energy storage system by utilizing the large rotational inertia of the wind turbine rotor to achieve power smoothing is proposed to solve the problem of output power fluctuations of modern large-scale wind turbines under rated wind speed. Firstly, the inherent characteristics of the wind turbines are employed to provide an immediate and accurate equivalent wind speed for control participation. Secondly, the upper and lower limits of the rotational speed are set for each wind speed segment based on high aerodynamic efficiency zone and wide speed-ratio design, and the entire inertia control process is given simultaneously to achieve the energy storage and release of the wind turbine rotor. Subsequently, multiple prediction models based on the slope of the wind speed pulsation trend are constructed via big data sources to realize the predictive action of the torque. Finally, the comparative simulation experiments of the power output of the wind turbine are carried out by BLADED simulation software and a certain actual wind farm. The results show that the adopted strategy stabilizes the output power effectively without the additional energy storage devices.

Key words

wind power / wind speed / wind turbine blades / tip-speed ratio / rotational of inertia / big data

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Yang Huanhong, Zheng Ying, Jia Dajiang. CONTROL STRATEGY FOR STABILIZING POWER FLUCTUATIONS BY UTILIZING LARGE ROTATIONAL INERTIA OF WIND TURBINE BLADE[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 316-326 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0087

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