摘要
传动链作为风力发电机组的主要部分,工作在柔性塔架支撑、风向和载荷多变等恶劣的环境下,其振动特性好坏直接影响风机可靠性和使用寿命,成为风电机组最薄弱环节。论文基于SKF的WindCon智能采集系统,以某兆瓦级风力发电机组为例,在正常运行和启、停工况下对传动链的振动进行远程在线检测,得到传动链在各运行工况下的振动特性,并揭示其动态特性变化规律。测试结果表明传动链振动较为复杂,主要表现为系统低频扭转振动和弯、扭、摆构成的复合振动,传动链中主轴、齿轮箱等振动频率主要由转频和各级齿轮啮合频率尤其是高速级齿轮啮合频率构成,并存在被转频调制现象。
As the key components of the wind turbine transmission,wind turbine drivetrain is always working under the complex and time-varing conditions,like flexible tower supporting,variable wind and changing load.Thus drivetrain is no wonder the weakest part for the wind turbine and its vibration characteristics determine the reliability and operating life of the wind turbine.This paper proposes a remote on-line test method for drivetrain vibration based on an intellectual monitoring unit named WindCon.The vibration characteristics of the commonly used multi-megawatt wind turbine are summoned through analyzing the collected data in different working conditions.The wind field results show that the vibration of drivetrain is relatively complex,and it＇s mainly manifested as a combination vibration of torsion,bending,and waving.Main frequencies of vibration of mainshaft,gearbox,and other parts in drivetrain are gear meshing frequencies and shaft rotating frequencies of each transmission stage especially high speed stage,and are accompanied by rotating frequencies modulation.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第1期68-73,共6页
Journal of Chongqing University
基金
国家科技支撑计划资助项目(2012BAA01B05)
重庆市重点攻关资助项目(cstc2014yykfB90003)~~
关键词
风力发电机组
传动链
振动特性
远程在线测试
wind turbine drivetrain
wind field operation
vibration characteristics
remote online test
