Φ型与H型Darrieus垂直轴风力透平性能比较

Performance comparison between Φ-type and H-type Darrieus vertical-axis wind turbine

采用单盘多流管模型作为Darrieus垂直轴风力透平的空气动力学性能预测模型,在相同密实度和相同高宽比的条件下,计算得到了Φ型与H型Darrieus垂直轴风力透平功率系数-尖速比曲线和功率-尖速比曲线.分析了Φ型与H型Darrieus垂直轴风力透平尖速比对功率系数及功率的影响,得到不同尖速比范围下两风力透平功率系数与功率的变化规律.

Multiple streamtubes model was adopted as the aerodynamic performance prediction model. Under the condition that the H-Type and the Ф-Type wind turbines are provided with the same rotor solidity and the same rotor aspect ratio, the rotor power coefficient and rotor power as functions of rotor tip speed ratio were calculated by using the model respectively. For both wind turbines, the variations of rotor power coefficient and rotor power with respect to rotor tip speed ratio were analysed. The regularities with regard to rotor power coefficient and rotor power within different rotor tip speed ratio ranges were presented.