风轮振动行为与尾迹的关联性研究

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (13) : 117-122.

论文

风轮振动行为与尾迹的关联性研究

李佩林 1，马剑龙 1,2，汪建文 1,2，张彦奇 1，姜勇 1，吕文春 1,3

作者信息 +

Relevance between wind wheel vibration and wake

LI Pei-lin1，MA Jian-long1,2，WANG Jian-wen1,2，ZHANG Yan-qi1，JIANG Yong1，Lv Wen-chun1,3

Author information +

文章历史 +

摘要

利用PULSE19装置和TR-PIV装置构建了发电机、塔架加速度与风轮尾迹发展的同步监测系统，针对直径1.4m的小型水平轴风力机振动特性及叶尖附近湍流涡旋进行了测试与分析，证实了风轮振动与尾流发展之间存在密切关联性。由风轮旋转形成的一次谐波能量值最高。对比加速度与尾流的频谱图，发现加速度峰值与尾流能量峰值对应的特征频率相近，风轮振动的能量传递到了流场中。风力机发生偏航后，风轮旋转三倍频与尾流一次谐波间能量传递受阻，偏航角小于10°时，尾流能量值对振动加速度值的变化较敏感，而随着偏航角的增加，两者之间的关联性减小。

Abstract

A synchronous monitoring system for vibration acceleration of a wind driven generator, hat of its pylon, and a wind wheel wake was constructed using the devices of PULSE19 and TR-PIV. The vibration features and turbulent vortex near blade tip of a 1.4m-diameter horizontal axis wind turbine were measured and analyzed, it was shown that there is a close relation between wind wheel vibration and wake; the energy of the first harmonic vibration component caused due to the wind wheel rotating is the highest. Comparing frequency spectra of wind wheel’s vibration acceleration and wake, it was found that the characteristic frequency of acceleration peak and that of wake energy peak are very close，so the wind wheel vibration energy is transmitted into the flow field; after the wind turbine has a yaw, the energy transfer between the third harmonic vibration component due to wind wheel rotating and the first harmonic component of the wake is blocked; when yaw angle is less than 10°, the wake energy value is more sensitive to the change of wind wheel vibration acceleration; with increase in yaw angle, the relevance between them decreases.

导出引用

李佩林 1，马剑龙 1,2，汪建文 1,2，张彦奇 1，姜勇 1，吕文春 1,3. 风轮振动行为与尾迹的关联性研究[J]. 振动与冲击, 2018, 37(13): 117-122

LI Pei-lin1，MA Jian-long1,2，WANG Jian-wen1,2，ZHANG Yan-qi1，JIANG Yong1，Lv Wen-chun1,3. Relevance between wind wheel vibration and wake[J]. Journal of Vibration and Shock, 2018, 37(13): 117-122

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