以MW级水平轴风力机为研究对象,基于实测数据建立风力机模型,考虑动态失速影响,以实测风资源边界进行风力机整机空转运行状态仿真,针对风力机动态响应进行分析。结果表明：不可压缩Beddoes-Leishman模型计算结果与实测数据变化趋势一致,通过频域分析对比可知,塔架频率最大误差为2.4%,叶片频率最大误差为1.2%;叶片结构阻尼比和风向角会影响风力机的动态响应,在风力机设计和运行过程中需要重点关注。
Abstract
Taking MW class horizontal axis wind turbine as the object of the research, the wind turbine model is established based on the measured data in this paper. Considering the influence of dynamic stall, the idling operation state of the wind turbine is simulated by the measured wind resource boundary, and the dynamic response of the wind turbine is analyzed. The results show that the calculated results of incompressible Beddoes-Leishman model are consistent with the measured data. The maximum error of tower frequency is 2.4%, and the maximum error of blade frequency is 1.2%. The damping ratio of the blade structure and the wind direction will affect the dynamic response of the wind turbine, which needs to be focused on during the design and operation of the wind turbine.
关键词
水平轴风力机 /
动态失速 /
动态响应 /
仿真
Key words
horizontal axis wind turbines /
dynamic stall /
dynamic response /
simulation
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