摘要
鉴于风力机传动轴和齿轮箱在非常规风况下易遭损坏,传动链的动态载荷和转矩波动的减少在设计过程起重要作用。考虑传动轴及齿轮箱支撑的柔性,建立十二体动力学模型。应用数字仿真,研究风力机在不同运行阶段及在不同的气动载荷和电磁转矩下的振动特性,并用遗传算法对传动系统的柔性参数优化求解。仿真结果表明柔性传动可有效抑制传动链的扭转振动。
Dynamic load and torque ripple reduction are important during the designing of transmission train of a large-scale horizontal wind turbine, because damage to shaft and gearbox are frequently occur under extra-ordinary wind conditions. In this paper, a flexible transmission system which includes a flexible low speed shaft, a flexible supporting of gearbox and a high speed shaft was considered, and a twelve-body dynamic model was built. Vibration performance of the transmission system with flexible parameters is evaluated, and the parameters of transmission system were optimized by genetic algorithm. Simulation under typical wind conditions showed that flexible transmission can significantly decrease the drive-train torsional oscillations.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2014年第7期1169-1175,共7页
Acta Energiae Solaris Sinica
基金
风电机组控制系统产学研结合示范(暨研究生创新培养)基地项目(cgzhzd0908)
广东省教育部产学研结合项目基金(2011A090200125)
关键词
水平轴风力机
柔性传动
扭转振动
遗传算法
horizontal wind turbines
flexible transmission
torsional oscillations
genetic algorithm
