基于SCADA系统的大型直驱式风电机组机舱振动分析  

VIBRATION ANALYSIS OF LARGE DIRECT DRIVE WIND TURBINE NACELLE BASED ON SCADA SYSTEM

作　　者：戴巨川[1] 袁贤松[1] 刘德顺[1] 龙辛 刘旋[1] 

机构地区：[1]湖南科技大学机电工程学院,湘潭411201 [2]湘电风能有限公司,湘潭411000

出　　处：《太阳能学报》2015年第12期2895-2905,共11页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51205123;51475160);湖南省自然科学基金(11JJ8002);湖南省科技计划(2012FJ4270)

摘　　要：选取某2 MW直驱式风电机组对其机舱振动进行分析。基于风电场数据采集与监视控制系统(SCADA)提取机舱振动数据及其他运行状态参数,利用有限元仿真方法获得塔架模态频率及其相应振型。分析风速、风轮转速、变桨距和偏航动作等对振动的影响,进行基于离差平方和法(Ward)的振动聚类分析。结果表明:风轮转速由当前风速及前一段时间风速均值决定,与某一风速对应的转速在一定范围内取值;风电机组振动极大值出现在风轮运行频率与塔架固有频率接近时;对状态参数归类后,振动具有各类特征。The nacelle vibration of a 2 MW direct-drive wind turbine was selected to research. Based on the SCADA （Supervisory Control and Data Acquisition） system, the data of nacelle vibration and some other operation state parameters were obtained. Using the finite element simulation method, the modal frequencies and the corresponding vibration modes of the tower were obtained. The influence of the wind speed, rotor rotation speed of wind turbine, pitch control and yaw motion on the nacelle vibration of wind turbine was analyzed. The vibration clustering analysis was carried out based on the method of squares sum of deviations （Ward＇s method）. The results show that the rotation speed of wind rotor is determined by the current wind speed and the average wind speed some time ago; for a certain wind speed, the corresponding rotation speed of wind rotor is within a certain range values. The maximum vibration acceleration appears when the wind rotor operation frequency is close to the tower natural frequency. After classifying state parameters of wind turbines, the nacelle vibration has respective characteristics corresponding to each class.

关 键 词：风电机组 SCADA系统 机舱振动 聚类分析 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]