该文揭示了重力回位型风力机侧偏过程中的风轮侧偏、尾翼气动力及重力回位的产生机理,推导出其力矩的精确计算公式,并给出一种风力机调速机构的设计方法;在力矩动态平衡的条件下,对300 W风电机组的限速控制机构进行设计计算,结果表明该设计符合重力回位调速的要求,对今后重力回位调速型风力机的设计和优化具有较重要的实用价值。 This paper reveals the generation mechanism of the wind wheel deflection, tail aerodynamic force and gravity return in the process of gravity return type wind turbine side deflection, and deduces the exact formula of its torque. A wind turbine speed regulation mechanism The design method of 300 W wind turbine speed limit control is designed and calculated under the condition of dynamic torque balance. The result shows that the design accords with the requirements of gravity return speed regulation. In the future, Design and optimization have more important practical value.