漂浮特性对风力发电机振动影响
|
摘要
在前期研究工作的基础上,将浮式基础波浪载荷计算和系泊系统计算考虑到所已建立的风力发电机分析模型中,形成漂浮式风力发电机动力学分析模型,进行在风浪下漂浮式风力发电机的动力学分析及振动计算。研究表明:漂浮特性对风力发电机的振动影响很大,同样条件下漂浮式风力发电机振动情况相对固定式风力发电机幅值变化较大(平均值一样),这意味着漂浮式风机的疲劳寿命会有较大下降。因此,针对固定风机的设计方法对漂浮式风机要有所修正及完善。
For analyzing the dynamic characteristics of floating wind turbine system and calculating the wave load on the floating body,the models of sea load and mooring system were established.The dynamic analysis results show that the floating characteristics of platform has great influence on the vibration of wind turbine.Under the same environmental conditions,the vibration amplitude of floating wind turbine fluctuates more seriously than that of fixed wind turbine,despite both have vibrations of the equal mean value,which means the reduction in fatigue life for floating wind turbine.Therefore,the design method for floating wind turbine should be revised and improved.
For analyzing the dynamic characteristics of floating wind turbine system and calculating the wave load on the floating body,the models of sea load and mooring system were established.The dynamic analysis results show that the floating characteristics of platform has great influence on the vibration of wind turbine.Under the same environmental conditions,the vibration amplitude of floating wind turbine fluctuates more seriously than that of fixed wind turbine,despite both have vibrations of the equal mean value,which means the reduction in fatigue life for floating wind turbine.Therefore,the design method for floating wind turbine should be revised and improved.
引文
[1]Johanning L.Dynamic response characteristics of a floating wind turbine tower at low response frequency[J].Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering-OMAE,2009,4PART B:983-992.
[2]Weinzettel J.Life cycle assessment of a floating offshore wind turbine[J].Renewable Energy,2009,34(3):742-747.
[3]Puneet A,Lance M.Simulation of offshore wind turbine response for long-term extreme load prediction[J].Engineering Structures,2009,31:2236-2246.
[4]Utsunomiya T.Wave response experiment on SPAR-type floating bodies for offshore wind turbine[J].Proceedings of the International Offshore and Polar Engineering Conference,2009:378-383.
[5]Karimirad M.Dynamic response of floating wind turbine[J].Scientia Iranica,2010,17(2B):146-156.
[6]Sultania A.Extreme loads on a spar buoy-supported floating offshore wind turbine,51st AIAA/ASME/ASCE/AHS/ASC[C].Structures,Structural Dynamics and Materials Conference,2010.
[7]Jason J,Tim F.Model development and loads analysis of an offshore wind turbine on a tension leg platform,with a comparison to other floating turbine concepts[R].NREL/SR-500-45891February,2010.
[8]金鑫,何玉林,杜静,等.风力机结构耦合振动分析[J].中国机械工程,2008,19(1):9-13.JIN Xin,HE Yu-lin,DU Jing,et al.Coupled vibrationanalysis of wind turbine[J].China Mechanical Engineering,2008,19(1):9-13.
[9]金鑫,何玉林,刘桦,等.Pitt-peters理论在风力发电机耦合振动分析中的应用[J].工程力学,2008,25(7):28-34.JIN Xin,HE Yu-lin,LIU Hua.Vibration analysis of wind turbine based on pitt-peter theory[J].Engineering Mechanics,2008,25(7):28-34.
[10]吴春艳,金鑫,何玉林,等.风力发电机在地震-风力作用下的载荷计算[J].中国机械工程,2011,22(18):2236-2240.WU Chun-yan,JIN Xin,He Yu-lin,et al.Load calculation of wind turbine subjected to earthquake and wind[J].China Mechanical Engineering,2011,22(18):2236-2240.
[11]何玉林,王磊,金鑫,等.海浪作用下的风力发电机组总体性能仿真[J].重庆大学学报,2011,34(3):18-24.HE Yu-lin,WANG Lei,JIN Xin,et al.Performance simulation of high-power wind turbine under the action of wind and wave[J].Journal of Chongqing University[J].2011,34(3):18-24.
[12]金鑫,王磊,刘桦.大功率风力发电机地震动力学建模及载荷计算[J].工程力学,2012,29(5):224-229.JIN Xin,WANG Lei,LIU Hua.A large scale wind turbine dynamic model and its load calculation in earthquake[J].Engineering Mechanics,2012,29(5):224-229.
[2]Weinzettel J.Life cycle assessment of a floating offshore wind turbine[J].Renewable Energy,2009,34(3):742-747.
[3]Puneet A,Lance M.Simulation of offshore wind turbine response for long-term extreme load prediction[J].Engineering Structures,2009,31:2236-2246.
[4]Utsunomiya T.Wave response experiment on SPAR-type floating bodies for offshore wind turbine[J].Proceedings of the International Offshore and Polar Engineering Conference,2009:378-383.
[5]Karimirad M.Dynamic response of floating wind turbine[J].Scientia Iranica,2010,17(2B):146-156.
[6]Sultania A.Extreme loads on a spar buoy-supported floating offshore wind turbine,51st AIAA/ASME/ASCE/AHS/ASC[C].Structures,Structural Dynamics and Materials Conference,2010.
[7]Jason J,Tim F.Model development and loads analysis of an offshore wind turbine on a tension leg platform,with a comparison to other floating turbine concepts[R].NREL/SR-500-45891February,2010.
[8]金鑫,何玉林,杜静,等.风力机结构耦合振动分析[J].中国机械工程,2008,19(1):9-13.JIN Xin,HE Yu-lin,DU Jing,et al.Coupled vibrationanalysis of wind turbine[J].China Mechanical Engineering,2008,19(1):9-13.
[9]金鑫,何玉林,刘桦,等.Pitt-peters理论在风力发电机耦合振动分析中的应用[J].工程力学,2008,25(7):28-34.JIN Xin,HE Yu-lin,LIU Hua.Vibration analysis of wind turbine based on pitt-peter theory[J].Engineering Mechanics,2008,25(7):28-34.
[10]吴春艳,金鑫,何玉林,等.风力发电机在地震-风力作用下的载荷计算[J].中国机械工程,2011,22(18):2236-2240.WU Chun-yan,JIN Xin,He Yu-lin,et al.Load calculation of wind turbine subjected to earthquake and wind[J].China Mechanical Engineering,2011,22(18):2236-2240.
[11]何玉林,王磊,金鑫,等.海浪作用下的风力发电机组总体性能仿真[J].重庆大学学报,2011,34(3):18-24.HE Yu-lin,WANG Lei,JIN Xin,et al.Performance simulation of high-power wind turbine under the action of wind and wave[J].Journal of Chongqing University[J].2011,34(3):18-24.
[12]金鑫,王磊,刘桦.大功率风力发电机地震动力学建模及载荷计算[J].工程力学,2012,29(5):224-229.JIN Xin,WANG Lei,LIU Hua.A large scale wind turbine dynamic model and its load calculation in earthquake[J].Engineering Mechanics,2012,29(5):224-229.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心