Abstract：In order to study change rules of VAWT-SWS operating mode, a vertical blade wind turbine with movable and fixed blades was designed and fabricated. At the same time, a straight blade vertical axis wind turbine with the same shape as the movable-fixed blade was produced. Under the condition of fixed wind speed and wind turbine height, influences of the number of blades and diameter of wind turbine on the drag-lift operation mode of self-adaptive wind speed vertical wind turbine were studied by increasing the number and length of the support arm. By means of wind tunnel experiment, the variation of torque of wind turbine with speed ratio is obtained, and compared with the vertical wind turbine with the same parameters, the working mode of the adaptive wind speed vertical axis wind turbine was determined by the proximity of the torque as the criterion. The results show that under certain conditions, the adaptive wind speed vertical axis wind turbine can automatically convert the wor-king mode, which can reduce the required speed ratio for wind turbine resistance conversion by increasing the number of blades, and increases the required speed ratio by increasing the diameter of the wind turbine. The results can provide theoretical guidance for the design of adaptive wind speed vertical axis wind turbine.
[1]ASLAM Bhutta, MUHAMMAD Mammood. Vertical axis wind turbine—a review of various configurations and design techniques [J]. Renewable and sustainable energy reviews, 2012, 16(4):1926-1939.[2]徐林,李学敏,区家隽. 叶片数及弦长对升力型垂直轴风力机的影响[J]. 可再生能源,2016,34(12):1834-1840. XU Lin, LI Xueming, QU Jiajuan. Influence of number of leaves and chord length on rigid vertical wind turbine[J]. Renewable energy, 2016,34(12):1834-1840.(in Chinese)[3]戴庚,徐璋,皇甫凯林,等.垂直轴风力机研究进展[J].流体机械,2010,38(10):39-43. DAI Geng,XU Zhang, HUANGFU Kailin, et al.Receat vesearch progress in the vertical axis wind turbine[J].Fluid machinery,2010,38(10):39-43.(in Chinese)[4]徐璋,霍玉雷,陈勇. 新型组合式垂直轴风机的优化设计与性能研究[J]. 浙江工业大学学报,2015,45(3):261-264. XU Zhang, HUO Yulei, CHEN Yong. Optimization design and oerformance of new type combined vertical shaft fan[J]. Journal of Zhejiang University of Technology, 2015,45(3):261-264.(in Chinese)[5]王骥月,丛茜,梁宁,等.基于海鸥翼型的小型风力机叶片仿生设计与试验[J]. 农机工程学报,2015,31(10):72-75. WANG Jiyue, CONG Qian, LIANG Ning, et al. Design and experiment of bionic design of small wind turbine blade based on seagull airfoil [J]. Transactions of the CSAE,2015,31(10):72-75.(in Chinese)[6]顾荣蓉,蔡新,潘盼,等. 升阻互补型垂直轴风力机气动性能分析[J]. 兰州理工大学学报,2016,42(4):55-60. GU Rongrong, CAI Xin, PAN Pan, et al. Analysis of pneumatic performance of vertical-shaft wind turbine with increased resistance [J]. Journal of Lanzhou University of Technology, 2016,42(4):55-60.(in Chinese)[7]杨从新,史广泰,李振朋. 升力型风力机与升阻型风力机气动性能分析[J]. 西华大学学报(自然科学版), 2014,33(1):104-107. YANG Congxin, SHI Guangtai, LI Zhenpeng. Analysis of pneumatic performance of lift wind turbine and lift type wind turbine [J]. Journal of Xihua University(na-tural science edition), 2014,33(1):104-107.(in Chinese)[8]曲建俊,代汉达. 垂直轴半活动半固定的组合叶片的风车:中国,ZL200820091137.2[P].2009-06-10.[9]许明伟. 自适应风速垂直轴风力机及其动态特性的研究[D]. 哈尔滨:哈尔滨工业大学,2013.[10]曲建俊,许明伟,李中杰,等.一种升阻复合型垂直轴风力机[J].可再生能源,2010,28(1):101-104.(in Chinese) QU Jianjun, XU Mingwei,LI Zhongjie, et al. A Kind of vertical shaft wind turbine [J]. Renewable energy, 2010,28(1):101-104.[11]QU Jianjun, XU Mingwei, MEI Yi. Aerodynamic model of vertical axis wind turbine with wind speed self-adapting in drag-mode [J]. Advanced materials research, 2012,347:340-343.(in Chinese)[12]李岩,原丰,林农.Savonius风力机叶片重叠比的风洞实验研究[J].太阳能学报,2009,30(2):226-233. LI Yan, YUAN Feng, LIN Nong. Experimental study on wind tunnel of savonius wind turbine blade overlap [J].Journal of solar energy, 2009,30(2):226-233.(in Chinese)
