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A COMPARISON OF RESULTS FROM DYNAMIC-RESPONSE FIELD TESTS

机译：动态响应场测试结果的比较

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摘要

The dynamic response of Howden's 330-kW horizontal-axis wind turbine (HAWT) and the Northern Power Systems 100-kW "North Wind 100" HAWT has been measured. The How-den machine incorporates a 26-m-diameter, upwind, three-bladed, wood/epoxy rotor that operates at 42 rpm and is a rigid-hub design. The North Wind 100 rotor has a diameter of 17.8 m, is upwind, two-bladed, and constructed of fiberglass, and has a teetered hub. The Northern Power turbine's blades are fully pitchable, while the Howden machine uses pitchable blade tips. This paper will present the results from each of these test programs in an effort to compare the dynamic response of each turbine. The analysis will focus on rotor bending loads in terms of both time domain and frequency response. The FLAP code will be used to explore sensitivity to teeter stiffness and natural frequency placement to provide a better understanding of the differences in behavior caused by configuration alone. The results are presented in the form of normalized azimuth-averaged plots of the deterministic loads, and spectral density plots of the stochastic responses. This presentation of the results will contrast major response differences due to design configurations.
机译：测量了Howden 330千瓦水平轴风力涡轮机（HAWT）和北方电力系统100-kW“北风100”HAWT的动态响应。 How-Den机采用26米直径，挤压，三刃，木/环氧转子，可在42 rpm下运行，是刚性毂设计。北方100转子的直径为17.8米，是玻璃纤维的逆风，双叶片和构造的，并且具有毛刺枢纽。北极动力涡轮的刀片是完全倾斜的，而伦敦机械使用可挥手刀尖。本文将展示来自这些测试计划的每个测试计划的结果，以比较每个涡轮机的动态响应。分析将在时间域和频率响应方面聚焦转子弯曲载荷。襟翼码将用于探索对跷跷板刚度和自然频率放置的敏感性，以更好地理解单独由配置引起的行为的差异。结果以确定性负载的标准化方位平均图的形式提出，以及随机反应的光谱密度图。该结果的呈现将导致由于设计配置引起的主要反应差异。

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