POWER AND LOAD COOPERATIVE FUZZY CONTROL METHOD OF LARGE WIND TURBINES DURING FULL GENERATION STAGE

Zhang Zheng; Yao Shigang; Yu Mengting; Liu Yongqian; Sun Dongmei

doi:10.19912/j.0254-0096.tynxb.2025-0008

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (6) : 230-238. DOI: 10.19912/j.0254-0096.tynxb.2025-0008

POWER AND LOAD COOPERATIVE FUZZY CONTROL METHOD OF LARGE WIND TURBINES DURING FULL GENERATION STAGE

Zhang Zheng¹, Yao Shigang¹, Yu Mengting¹, Liu Yongqian², Sun Dongmei²

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Abstract

Because of the applicability challenges of power/torque control technology near the rated wind speed for large wind turbines, this paper proposes a fuzzy-based electrical power and load cooperative control strategy for large wind turbines in the full-generation stage. Firstly, a fuzzy algorithm is used to intelligently judge the rotation speed change trend of the generator's speed change during full-generation stage. Secondly, maximum/minimum torque coefficients and power switching coefficients are proposed, and different control strategies are flexibly selected based on the trend of rotation speed change of generat or. That achieve the organic combination of constant-power and constant-torque control method. Finally, the effectiveness of the proposed method is verified through simulation experiments. This method can not only maintain relatively stable of electrical power and ensure the operation safe of wind turbines and the grid, but also effectively reduce the fatigue loads on the major components of wind turbines, which can extend its service life.

Key words

wind turbines / fuzzy control / load control / full-generation-stage control strategy / constant-power control / constant-torque control

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Zhang Zheng, Yao Shigang, Yu Mengting, Liu Yongqian, Sun Dongmei. POWER AND LOAD COOPERATIVE FUZZY CONTROL METHOD OF LARGE WIND TURBINES DURING FULL GENERATION STAGE[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 230-238 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0008

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