兆瓦级风电机组传动链动态特性分析  

Dynamic characteristics analysis of megawatt wind turbine drive train

作　　者：张盛林[1] 宋朝省[1] 翟洪飞[1] 柏厚义 朱才朝[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]重庆望江工业集团公司,重庆400071

出　　处：《重庆大学学报（自然科学版）》2015年第1期12-19,共8页Journal of Chongqing University

基　　金：国家科技支撑计划资助项目(2012BAA01B05);重庆市重点攻关项目(CSTC2014YYKFB9003);Supported by National Key Technology Support Program(2012BAA01B05) and the Key Science and Technology Projects Fund of Chongqing (CSTC2014YYKFB9003).

摘　　要：由于风力发电机组安装在柔性支撑塔架上,传动链承受着变风向、变载等恶劣工况,其故障率一直较高,成为风电发展的瓶颈。研究考虑风机塔筒摆动与传动链扭转振动的耦合效应,利用集中参数法建立基于柔性支撑的兆瓦级风机传动链耦合动力学分析模型,开展兆瓦级风电机组传动链动态特性研究,揭示其动态特征及变化规律,利用坎贝尔图对潜在共振点进行分析,得到切入转速与传动链之间潜在共振频率。基于Simpack有限元法对传动链动态特性进行分析,验证分析方法的正确性。Since the wind turbines are installed on the flexible support tower,the drive train of the wind turbines runs under severe work conditions with varying wind directions and loads.So its failure rate is high and it is the bottle neck of the wind power development.This work presents a study which takes the coupling effect of oscillating of tower barrel and the twisting vibration of driven train into account.Using the lumped parameter method,a coupled dynamic model for the megawatt wind turbine drive train is built by considering the flexible tower barrel support effects.Then,the dynamic characteristics of the megawatt wind turbine drive train are analyzed.The Campbell chart is used in this research to analyze the potential resonance points.And the potential resonance frequencies between the cutting in and cutting out rotational speed of the drive train are obtained.Finally,Simpack is used to analyze the dynamic characteristics of drive train and verify the correctness of the proposed method.

关 键 词：风电机组 传动链 动态特性 耦合分析 

分 类 号：TH132.413[机械工程—机械制造及自动化]