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本文以UpWind/NREL 5 MW为参考风力机,通过重新集成和改进FAST/Aerodyn气动、结构模块,结合Matlab/Simulink里搭建的PID控制器,自主开发了基于柔性尾缘襟翼(DTEF)的“智能叶片”整机气动伺服弹性仿真平台。在此基础上,研究了基于DTEF智能叶片系统降低IEC多种湍流风下疲劳载荷的有效性及其疲劳载荷减少情况。结果表明:无论是标准湍流风模型(NTM)还是极限湍流模型(ETM)下,所开发的智能叶片系统都有效地降低了疲劳载荷,其中,叶根挥舞弯矩和叶尖偏移量的波动都得到了有效的减少。
In this paper, based on UPWind / NREL 5 MW wind turbine, a new type of wind turbine based on DTEF is developed through reintegration and improvement of FAST / Aerodyn pneumatic and structural modules and PID controller built in Matlab / Simulink. “Intelligent Blade ” machine pneumatic servo flexible simulation platform. Based on this, the effectiveness of DTEF intelligent blade system to reduce the fatigue load under various turbulent winds and the reduction of fatigue load were studied. The results show that the developed intelligent blade system can effectively reduce the fatigue load both in the standard turbulence model (NTM) and the extreme turbulence model (ETM), in which the waving moment of blade root and the tip-offset Have been effectively reduced.