Abstract：In order to reveal the difference between aerodynamic performance and generation perfor-mance for a small wind turbine, the aerodynamic performance of a novel wind rotor and the generation performance of the alternator driven by the same rotor are tested in a low-speed wind tunnel, the aerodynamic characteristics and electromagnetic property are analyzed in depth. Based on aerodynamic power data and generation power data, the optimal operating curve and the actual operating curve are plotted under different wind speeds, showing that the generation power and the corresponding rotation speed are both less than the aerodynamic power and the corresponding rotation speed. The aerodynamic torque first increases, then decreases with rotation speed, while the electromagnetic torque increases continuously with rotation speed. When the increased electromagnetic torque approaches the decreased aerodynamic torque, the alternator rotation speed cannot reach that of aerodynamic power peak, the mismatch between aerodynamic torque and electromagnetic torque is the main reason for the perfor-mance difference. Besides, the experimental data benefit the research on the maximum power tracking control strategy of the wind turbine.
昝丙合,何淼,朱建勇*,李国文. 小型风力机系统气动及发电性能试验研究[J]. 排灌机械工程学报, 2021, 39(6): 596-601.
ZAN Binghe,HE Miao,ZHU Jianyong*,LI Guowen. Experimental research on aerodynamic performance and generation performance for small horizontal axis wind turbine. Journal of Drainage and Irrigation Machinery Engin, 2021, 39(6): 596-601.
