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为研究不同土质时地震载荷对大型风力机结构动力学响应的影响,基于Wolf方法建立风力机基础平台与土体的耦合模型,通过FAST软件仿真WindPACT 1.5 MW风力机在不同土质和不同地震强度时塔架的动力学响应.通过分析不同工况下风力机的结构动力学响应,发现地震载荷对塔顶位移和塔基弯矩的影响不可忽略,尤其是塔顶侧向位移和塔基俯仰力矩.在九级设防烈度地震作用下,相比无地震工况,软土、硬黏土和岩土地质风力机塔顶侧向位移分别增大925％、785％和771％.且由于软土阻尼最小,能量耗散小,所以地震后塔架响应降低的速率最慢.“,”To study the influence of the seismic load in various soil qualities on the structural and dynamic characteristics of a large-sized wind turbine,established was a model for foundation platforms of wind turbines coupled with the soil body based on the Wolf method.The dynamic response of the derrick of a WindPACT 1.5 MW wind turbine was simulated by using the software FAST in various soil qualities at different earthquake intensities.Through analyzing the structural dynamic responses of the wind turbine under various operating conditions,it has been found that the influence of the seismic load on the displacement at the top of the derrick and the bending moment at the derrick foundation should not be neglected,especially,the lateral displacement at the top of the derrick and the pitching moment at the derrick foundation.Under the action of an 9-magnitude earthquake to be protected,compared with the conditions without any earthquakes,the lateral displacement at the top of the derrick of the wind turbine in soft soil,hard clay and rock-soil will increase by 925％,785％ and 771％ respectively and due to the smallest damping force and a small amount of energy dissipated of the soft soil,the speed rate of the response of the derrick declined after the earthquake will be the slowest.