针对传统单转轮风力机设计,研发了用于减小湍流尾流影响、抗台风的新型两级双转轮风力发电机组,探讨了风力机非定常尾流对下游环境的影响,并设定了一个包括地面境界层在内的大空间计算域进行离散数值解析。研究结果表明,两转轮在不同转动位置时压力分布呈规律性动态变化,湍流影响比传统单轮小,动力特性好。 Aimed at the design of the conventional single-rotor wind turbine, a new two-stage double-rotor wind turbine for reducing the influence of turbulent wake and typhoon has been developed. The influence of unsteady wake of the wind turbine on the downstream environment has been discussed. A large-scale computational domain, including the ground level, is used for discrete numerical analysis. The results show that the pressure distribution of the two runners changes regularly and dynamically, and the turbulence effect is smaller than that of the traditional one. The dynamic characteristics are good.