张力腿漂浮式风电机组疲劳载荷智能控制研究  

NUMERICAL INVESTIGATION OF SMART FATIGUE LOAD CONTROL ON TENSION LEG PLATFORM FLOATING WIND TURBINE

作　　者：李欣 张明明[1,3] 杨洪磊[1,2,3] Li Xin;Zhang Mingming;Yang Honglei(Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Wind Energy Utilization,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]中国科学院大学,北京100049 [3]中国科学院风能利用重点实验室,北京100190

出　　处：《太阳能学报》2020年第9期278-286,共9页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51736008);中国科学院洁净能源先导科技专项(XDA 21050303);中科院创新交叉团队项目。

摘　　要：以张力腿式(tension leg platform,TLP)UpWind/NREL 5 MW风电机组为研究对象,采用FAST/AeroDyn开源代码,结合自主开发的基于柔性尾缘襟翼(deformable trailing edge flap,DTEF)的载荷智能控制系统,搭建气动-水动-伺服-弹性仿真平台,选取国际电工协会(IEC)标准正常湍流模型(NTM)和正常海况模型(NSS)工况,开展张力腿漂浮式风电机组载荷控制研究。通过与整体变桨控制比较发现,在DTEF控制下,叶片、传动链和塔架的疲劳载荷得到了有效控制,载荷降低20%~35%,增加了系统的可靠性和经济性。在额定风速以上,DTEF的辅助变桨作用可缓解变桨系统的磨损,并同时降低发电机转速、扭矩和功率的波动,提高了机组的性能。为探索控制有效性的原因,开展详细的基于DTEF的相关机理分析。The smart fatigue load control of Up Wind/NREL 5 MW floating wind turbine on tension leg platform(TLP)is numerically investigated on our newly integrated aero-hydro-servo-elastic platform based on NREL FAST/AeroDyn open source code.The load condition of normal turbulence model(NTM)and normal sea state(NSS)under International Electrotechnical Commission(IEC)standard is chosen to examine the effect of deformable trailing edge flap(DTEF)control.It is found that DTEF significantly alleviates the fatigue loads on blade,driving chain and tower by up to 20%-35%compared to collective pitch control,enhancing reliability and economy for the system.Above rated wind speed,the auxiliary pitching function of DTEF regulates the generator speed to obtain steady and safety electric power and torque output,meanwhile relieving the wear of the blade pitch system,which further improves the performance of TLP floating offshore wind turbine.A detailed analysis based on DTEF is also carried out for the sake of exploring related mechanisms for its effectiveness.

关 键 词：海上风力发电机组 张力腿基础 疲劳载荷 智能叶片控制 柔性尾缘襟翼 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]