上海交通大学学报

上海交通大学学报 >

2018 , Vol. 52 >Issue 8: 904 - 909

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2018.08.004

学报（中文）

结冰对风力机载荷的影响

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  • 上海交通大学 机械与动力工程学院， 上海 200240
胡良权（1987-），男，江西省赣州市人，博士生，主要研究方向为风力机叶片结冰数值模拟.

收稿日期: 2017-10-13

基金资助

国家自然科学基金（51506123），国家博士后科学基金（2015M571563）

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Load of Wind Turbine Affected by Icing

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  • School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2017-10-13

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摘要

针对风力机叶片结冰问题，以NREL Phase VI风力机为研究对象，采用Fluent和气动弹性程序FAST，研究了不对称结冰(只有1个叶片结冰)和对称结冰(2个叶片都结一致的冰)对风力机载荷的影响.结果表明：结冰会导致叶片气动性能下降，从而导致风轮转矩减小；对称结冰可使风轮转矩减小量达 34.99%；不对称结冰会引起低速轴剪切力不平衡，增加低速轴疲劳载荷；对称结冰可使风轮轴向推力、叶根力矩和塔基力矩减小量分别达 6.07%，40.32% 和 37.32%.

关键词： 风力机; 叶片结冰; 载荷

本文引用格式

胡良权，陈进格，沈昕，竺晓程，杜朝辉 . 结冰对风力机载荷的影响[J]. 上海交通大学学报, 2018 , 52(8) : 904 -909 . DOI: 10.16183/j.cnki.jsjtu.2018.08.004

Abstract

Aiming at the wind turbine blade icing problem, the NREL Phase VI wind turbine was used as the research object. The Fluent and the aero-elasticity program FAST were used to study the load effects of the asymmetry icing (i.e., just one blade is covered with ice) and the symmetry icing (i.e., two blades are covered with ice). Results show that the icing can decrease the blade aerodynamic performance, its rotor torque will be decreased. The symmetry icing can decrease the rotor torque up to 34.99%. The asymmetry icing can induce the unbalance shear force on the low speed shaft, and will increase the low speed shaft fatigue load. The symmetry icing can decrease the rotor thrust, the blade root moment and the tower base moment up to 6.07%, 40.32% and 37.32%, respectively.

Key words： wind turbine; blade icing; load

参考文献

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