P-H-H齿轮箱动力学影响研究  

DYNAMIC EFFECT OF P-H-H GEARBOX ON WIND TURBINE

作　　者：刘桐[1] 袁惠群[2] 陈雷[3] 李岩[1] 

机构地区：[1]东北大学机械工程与自动化学院,沈阳110819 [2]东北大学理学院,沈阳110819 [3]沈阳工业大学风能技术研究所,沈阳110023

出　　处：《太阳能学报》2015年第10期2499-2504,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51275081);辽宁省科技创新重大专项(201303004)

摘　　要：针对风力发电机组传动链出现的动态载荷问题,利用柔性多体动力学法对风力机进行参数化建模。运用叶素动量定理对叶片的气动载荷进行研究,并考虑叶尖损失、风剪切、塔影效应,分别建立简单齿轮箱和P-H-H(一级行星+二级平行轴齿轮传动)齿轮箱模型。以某2.5 MW风力机为例,对两种齿轮箱模型载荷进行对比,得出在正常发电的情况下,两种模型的载荷基本相同;但在紧急停车和掉网工况中,P-H-H齿轮箱模型的载荷较大。最后运用信号谱分析,发现在正常发电情况,齿轮箱输入轴频率小于5 Hz,但在紧急停车工况中,则会出现大量高频成分。A flexible multi-body dynamics method for wind turbine was used for parametric modeling to solve the dynamic load problem of wind turbine drive train. The blade element momentum theory was applied to study the aerodynamic load of the blades, and the loss of tip, wind shear and tower shadow were considered. Thus simple gearbox and complex P-H-H gearbox （a planet ＋2 parallel shaft gears） were established, respectively. Taking 2.5 MW wind turbine as the prototype, the loads of two kinds of gearbox models were compared. The results show that the loads of two models in normal power generation are the same. But P-H-H gearbox load is greater than another one during the emergency stop and gird loss. Finally, using the signal spectrum analysis, the results show that the gearbox input shaft freque normal power generation is less than 5 Hz. However, in the emergency stop, the components appear. large numbers of high ncy in the frequency

关 键 词：风力发电机组 动力学 齿轮箱 信号谱 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]