能量法计算大型风力发电机组的固有频率

Calculation for natural frequency of large-scale wind turbine with energy method

通过对大型风力发电机组结构进行合理简化,应用机械能守恒原理,推导出机组固有频率与自振周期的计算公式。方法简便实用,精度能满足工程要求,对大型风力机组总体的初始设计具有一定的参考价值。

Based on the simplified model of wind turbine and the principle of equivalent mass, this paper puts forward a calculating method for natural frequency and natural vibration period of wind turbine. Not only is the method practical and simple, but also high precision in calculation. It is a useful reference method for preliminary design of large-scale wind turbine.