Abstract

Floating offshore wind turbine is a complex rigid-flexible coupling nonlinear system, and the accurate dynamic model is difficultly established. Therefore, the wind-wave interference cannot be improved by adopting the conventional control strategy. In order to solve this problem, an adaptive fuzzy controller (AFC) is used to suppress the dynamic response of floating wind turbine. Two correction factors are introduced to optimize the fuzzy rule, and the traditional fuzzy controller (FC) is firstly obtained. Since the balance positions change and structural parameter perturbation of the wind turbine, an AFC is designed and validated. Finally, the suppression vibration responses ability of floating offshore wind turbine by using the different control strategies is studied under the random wind-wave disturbance and blade pitch control system coupling effect. The simulation results show that the tracking ability of the AFC to the target value is obviously higher than that of the FC; Comparing with the passive control strategy, the suppression vibration effect on the power spectral density (PSD) of the platform pitch (PFPI) motion peak can increase by 39.06% by adopting the AFC.

Highlights

  • 图 9 为在随机风浪扰动和叶片桨距控制系统耦 合作用下,不同控制方式的 PFPI 运动 PSD 图。 明 显的,FC 和 AFC 的 PSD 峰值远远低于 TMD 被动控

  • The wind⁃wave interference cannot be improved by adopting the conventional control strategy

  • The suppression vibration responses a⁃ bility of floating offshore wind turbine by using the different control strategies is studied under the random wind⁃ wave disturbance and blade pitch control system coupling effect

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Summary

Introduction

即可保证 V = - 1 eTQe - eTPg( q,q) w < 0。 为保证 2 图 9 为在随机风浪扰动和叶片桨距控制系统耦 合作用下,不同控制方式的 PFPI 运动 PSD 图。 明 显的,FC 和 AFC 的 PSD 峰值远远低于 TMD 被动控 Passive structural control of offshore wind turbines[ J] . [3] JIN X, XIE S, HE J, et al Optimization of tuned mass damper parameters for floating wind turbines by using the artificial fish swarm algorithm[ J] .

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Conclusion

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