DECOUPLING CONTROL STRATEGY FOR LOADING FORCE IN STATIC LOADING TEST OF LARGE WIND TURBINE BLADES

Liu Mei; Zhang Leian; Lin Chenyu; Li Chengliang; Zhang Yuhuan; Li Jinlei

doi:10.19912/j.0254-0096.tynxb.2024-1331

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (12) : 718-724. DOI: 10.19912/j.0254-0096.tynxb.2024-1331

DECOUPLING CONTROL STRATEGY FOR LOADING FORCE IN STATIC LOADING TEST OF LARGE WIND TURBINE BLADES

Liu Mei¹, Zhang Leian¹, Lin Chenyu¹, Li Chengliang², Zhang Yuhuan¹, Li Jinlei¹

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Abstract

To eliminate the effect of load oscillation caused by cross-link coupling of loading force between multiple nodes in the static loading test of wind turbine blades, a proportional-integral-derivative（PID） decoupling control strategy based on an intelligent optimization algorithm with self-tuning parameters is proposed. Firstly, the mathematical model, between multi-node loading force and the deflection variation of multiple nodes is established, and the algorithm-free control loading of a 71.5 m blade is taken as an example to reveal the cross-link coupling response characteristics. Secondly, combining the variable speed integral and incomplete differential PID control strategy, an improved Beetle Antennae Search algorithm is proposed for the online self-tuning of PID parameters in the nonlinear loading process. Finally, the proposed control strategy is applied to a seven-node static load proof test of 110.5 m wind turbine blades. The results show that the control strategy can effectively reduce the multi-node cross-link coupling, meet the requirements of coordination control of loading force, and realize stable loading of large blade static loading test.

Key words

wind turbines / blades / load control / decoupling control strategy / static loading test / improved beetle antennae search algorithm

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Liu Mei, Zhang Leian, Lin Chenyu, Li Chengliang, Zhang Yuhuan, Li Jinlei. DECOUPLING CONTROL STRATEGY FOR LOADING FORCE IN STATIC LOADING TEST OF LARGE WIND TURBINE BLADES[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 718-724 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1331

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