随机风速下风力发电机传动系统动态外载荷计算

摘要

A coupling analysis model of the wind turbines is obtained through establishing a random wind speed model, a aerodynamic performance model, a transmission train model and a generator model. According to the control strategy of the variable speeds wind generator, the transmission system dynamic loads are calculated and the influences upon transmission system dynamic loads based on rigid and flexible drive train are investigated, which lays a foundation for further study on dynamic characteristic and reliability of the wind power generator gear transmission system.%通过建立实际风场的随机风速模型、风轮气动性能模型、传动链模型、发电机模型,获得了风力发电机整机的动力学分析模型.根据变速风力发电机的控制策略,计算了随机风速和发电机负载条件下传动系统的动态外载荷,并比较了采用刚性、柔性传动链模型对传动系统动态外载荷的影响,为进一步研究风力发电机齿轮传动系统的动态特性及可靠性奠定了基础.