双风轮风力机前后风轮功率特性相互影响分析  

Analysis of Power Characteristic of Dual-wind Turbine Under Different Area Ratio

作　　者：李德顺[1,2,3] 刘磊磊 李志渊 郭林峰 李仁年 LI De-shun;LIU Lei-lei;LI Zhi-yuan;GUO Lin-feng;LI Ren-nian(School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Gansu Provincial Technology Centre for Wind Turbines,Lanzhou 730050,China;Key Laboratory of Fluid Machinery and Systems of Gansu Province,Lanzhou 730050,China)

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050 [2]甘肃省风力机工程技术研究中心,甘肃兰州730050 [3]甘肃省流体机械及系统重点试验室,甘肃兰州730050

出　　处：《液压气动与密封》2023年第5期107-113,共7页Hydraulics Pneumatics & Seals

基　　金：国家自然科学基金(51766009,52166014);甘肃省基础研究创新群体项目(21JR7RA277);西华大学流体及动力机械教育部重点实验室开放基金(szjj2019-027)。

摘　　要：双风轮风力机相对于传统风力机能够吸收更多的风能转化成电能。通过对3种面积比(56%、64%、87%)的双风轮风力机开展风洞实验,研究前后风轮不同叶尖速比时,对双风轮风力机功率特性的影响。结果表明:面积比为64%双风轮风力机的后风轮随着叶尖速比的增大,对前风轮功率有促进作用,而56%和87%的双风轮的后风轮叶尖速比的增大对前风轮功率有抑制作用;3种面积比双风轮的前风轮叶尖速比的增大对后风轮的功率都有抑制作用。3种面积比的双风轮风力机的总功率均大于单风轮风力机,且面积比为64%的双风轮风力机功率提升最大。Dual-wind turbines can absorb more wind energy to generate electricity than wind turbine.Wind tunnel experiments were carried out on three types of twin-turbine wind turbines with area ratios(56%,64%and 87%)to study the influence of different blade tip ratios on the power characteristics of twin-turbine wind turbines.The results show that with the increase of blade tip ratio,the power of the front rotor is promoted for the rear rotor with an area ratio of 64%,while the power of the front rotor is inhibited for the increase of blade tip ratio of the rear rotor with an area ratio of 56%and 87%.The power of the rear rotor is inhibited by the increase of the tip speed ratio of the front rotor.The total power of the three types of area ratio of the dual-turbine wind turbine is greater than that of the single-turbine wind turbine,and the dual-turbine wind turbine with area ratio of 64%has the largest power increase.

关 键 词：双风轮风力机 叶尖速比 面积比 功率 抑制作用 促进作用 

分 类 号：TH137[机械工程—机械制造及自动化]