海上风力机在极端工况下的动力响应特性分析  

Dynamic response characteristics of offshore wind turbines under extreme condition

作　　者：王洪哲 张立茹[2,3] 喻涛涛 吕成 Wang Hongzhe;Zhang Liru;Yu Taotao;Lv Cheng(Power Dispatch and Control Center,State Grid Liaoning Electric Power Supply Co.,Ltd.,Shenyang 110006,China;School of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Minstry of Education Key Laboratory of Wind Energy Utilization Technology（Inner Mongolia University of Technology）,Hohhot 010051,China)

机构地区：[1]国网辽宁省电力有限公司电力调度控制中心,辽宁沈阳110006 [2]内蒙古工业大学能源与动力工程学院,内蒙古呼和浩特010051 [3]风能太阳能利用技术教育部重点实验室(内蒙古工业大学),内蒙古呼和浩特010051

出　　处：《可再生能源》2018年第11期1719-1723,共5页Renewable Energy Resources

基　　金：国家自然科学基金项目(51666014)

摘　　要：针对海上风力机在极端环境下动力响应问题,利用自回归滑动平均方法建立具有功率谱密度特性的风速模型。结合海上风力机三维结构动力学模型,研究海上风力机在极端工况下的动力响应特性,得出风力机线性速度、平均运动能、平均力矩等参数随时间变化的曲线,分析了曲线中的参数变化对风力机正常运行的影响。研究结果表明,风力机叶尖的平均运动能随着时间的增加呈衰减振荡趋势,平均力矩从0~16 s逐渐衰减变小,16~18 s线性上升,20~60 s呈抛物线变化趋势,并且其它动力响应参数也符合风力机实际运行规律。该研究为海上风力机在极端工况下运行状态参数监测提供一定的参考。Aiming at the dynamic response problem about offshore wind turbine in the extreme environment, it uses autoregressive moving average method to establish a wind speed model of power spectral density characteristics. The dynamic response characteristics combined with the three-dimensional dynamic model of offshore wind turbine under extreme conditions are studied.The curves on linear velocity, average motion energy and torque of wind turbine changes with time are obtained, the impact of parameter variation on normal operation of wind turbine is analyzed.The results show that the total motion of the blade end of the wind turbine decreases with the increase of time, and the average torque decreases gradually from 0 s to 16 s, and increases linearly from 16 s to 18 s, and a parabolic trend from 20 s to 60 s. The results provide some reference value for offshore wind turbine operation monitoring under extreme operating conditions.

关 键 词：海上风力机 动力响应 衰减振荡 运动能 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]