电工技术学报  2018, Vol. 33 Issue (10): 2253-2260    DOI: 10.19595/j.cnki.1000-6753.tces.161941
高电压与绝缘技术 |
考虑覆冰粗糙度影响的风力发电机叶片气动性能数值仿真
李瀚涛, 舒立春, 胡琴, 蒋兴良, 邱刚
输配电装备及系统安全与新技术国家重点实验室(重庆大学) 重庆 400030;
Numerical Simulation of Wind Turbine Blades Aerodynamic Performance Based on Ice Roughness Effect
Li Hantao, Shu Lichun, Hu Qin, Jiang Xingliang, Qiu Gang
State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400030 China;
全文: PDF (28664 KB)  
输出: BibTeX | EndNote (RIS)      
摘要 针对高湿、寒冷地区覆冰造成机组出力减少的问题,以NREL S809二维翼型及某型300kW风力机三维风轮为研究对象,采用计算流体力学(CFD)数值仿真方法,结合覆冰粗糙度模型,研究分析覆冰粗糙度对风力机叶片气动性能的影响规律。计算结果表明:对于改变翼型气动外形较小的覆冰,二维翼型的气动性能随着覆冰粗糙度大小、覆冰相对宽度的增加而降低,随着攻角的增加影响变大;对于改变翼型气动外形较大的覆冰(雾凇或雨凇),雨凇覆冰的破坏作用更大,但雾凇覆冰翼型受覆冰粗糙度影响更大;叶片覆冰导致三维风轮气动性能降低,在大风速下更为显著;随着覆冰粗糙度大小的增加,三维风轮输出转矩和轴向推力降低,且随着风速的增加,降低程度变大。该文的计算结果对覆冰地区风电场运行及机组性能评估有一定的参考价值和借鉴意义。
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
李瀚涛
舒立春
胡琴
蒋兴良
邱刚
关键词 风力发电机叶片覆冰覆冰粗糙度气动特性计算流体力学数值模拟    
Abstract:Wind turbines in humid and cold regions often suffer blades icing problems resulting in the loss of power generation. In the paper, the CFD methods combining with ice equivalent roughness model are carried out on NREL S809 airfoils and a 300kW wind turbine rotor to investigate the influence of ice roughness on aerodynamic performance of wind turbine blades. The conclusions are as follows. For slight ice not to change the airfoil shape, the 2D profile aerodynamic performance decreases with the increase of ice surface width and ice roughness height, especially more remarkably in higher AOAs (angle of attack). For rime or glaze ice, glaze ice causes greater damage, however, the rime-iced profile is influenced by ice roughness more significantly. In terms of 3D rotor with iced blades, the aerodynamic performance declines more dramatically at higher wind speed. In addition, both the output torque and axial thrust of the rotor decrease with the increase of ice roughness, and the downtrends are becoming more apparent with the increase of the wind speed. The results will provide a valuable reference for both wind farm operation and generator system evaluation in icing districts.
Key wordsWind turbine    blades icing    ice roughness    aerodynamic performance    computational fluid dynamic (CFD) numerical simulation   
收稿日期: 2016-12-12      出版日期: 2018-05-24
PACS: TM835.4  
基金资助:国家重点基础研究发展计划项目(973计划)(2014CB260401)和国家自然科学基金(51321063、51377180、51677014)资助
通讯作者: 李瀚涛 男,1990年生,博士研究生,研究方向为风力发电机叶片覆冰与防冰除冰基础问题。E-mail: lht_ct@163.com   
作者简介: 舒立春 男,1964年生,博士,教授,博士生导师,研究方向为风力发电机叶片覆冰与防冰除冰基础问题。E-mail: lcshu@cqu.edu.cn
引用本文:   
李瀚涛, 舒立春, 胡琴, 蒋兴良, 邱刚. 考虑覆冰粗糙度影响的风力发电机叶片气动性能数值仿真[J]. 电工技术学报, 2018, 33(10): 2253-2260. Li Hantao, Shu Lichun, Hu Qin, Jiang Xingliang, Qiu Gang. Numerical Simulation of Wind Turbine Blades Aerodynamic Performance Based on Ice Roughness Effect. Transactions of China Electrotechnical Society, 2018, 33(10): 2253-2260.
链接本文:  
https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.161941          https://dgjsxb.ces-transaction.com/CN/Y2018/V33/I10/2253