3种典型海上浮动式风力机动力学特性比较分析  

COMPARISON AND ANALYSIS OF DYNAMIC CHARACTERISTICS OF THREE TYPICAL FLOATING WIND TURBINES

作　　者：贺尔铭[1] 张扬[1] 胡亚琪[1] 

机构地区：[1]西北工业大学航空学院,西安710072

出　　处：《太阳能学报》2015年第12期2874-2881,共8页Acta Energiae Solaris Sinica

基　　金：高等学校博士学科点专项科研基金(20116102110002)

摘　　要：综合考虑海上浮动式风力机所受气动、水动载荷及控制系统的影响,建立3种典型浮动式风力机的气动-水动-控制-结构完全耦合动力学模型。以NREL 5 MW机组为基础,运用FAST程序与Aero Dyn、Hydro Dyn子程序,计算分析3种浮动式风力机在不同工况下的响应,并与相同型号的陆基定桩式风力机组在相应工况下的响应进行分析比较。研究结果表明:气动载荷和水动载荷的耦合作用对浮动式风力机动力学响应影响显著,且不同浮动风力机的响应也有明显差距;浮动风力机所受最大载荷相对陆上风力机有所增加,其中Barge和Spar-Buoy两种浮动风力机最大塔根弯矩增幅达到1.4倍以上;Barge平台和TLP平台作为海上风力机组的浮动平台具有较好的稳定性。The influence of aerodynamic loading, hydrodynamic loading on the floating wind turbine and its control system was systematically considered. The fully coupled aero-hydro-servo-elastic dynamic models of three typical floating wind turbines were established, respectively. Based on NREL 5-MW wind turbine, the comprehensive dynamic responses of three floating wind turbines under different load cases were obtained by using FAST code with AeroDyn and HydroDyn subroutines, and compared with the onshore wind turbine with the same baseline in the corresponding working condition. The results showed that the influence of coupled aero-hydro dynamic loading on the dynamic response of wind turbine is obvious, and the responses of different floating wind turbines have obvious differences. The maximum load acting on the floating wind turbine is increased relative to the onshore wind turbine. Especially, the maximum tower-base bending moments of the Barge and the Spar-Buoy floating wind turbines increase 1.4 times more with respect to onshore wind turbine. Barge platform and TLP platform have better stability as offshore wind turbines platforms.

关 键 词：浮动式风力机 全耦合模型 动力学分析 FAST 水动载荷 

分 类 号：TM113.1[电气工程—电工理论与新技术]