风电叶片两加载源疲劳加载同步激振控制策略  

TWO LOADING SOURCES SYNCHRONOUS VIBRATION CONTROL STRATEGY OF FATIGUE TEST FOR WIND TURBINE BLADE

作　　者：陈国维 黄雪梅[1] 于良峰 张磊安[1] 魏修亭[1] Chen Guowei;Huang Xuemei;Yu Liangfeng;Zhang Leian;Wei Xiuting(College of Mechanical Engineering,Shandong University of Technology,Zibo 255049,China;CRRC Wind Power(Shandong)Co.,Ltd.,Ji'nan 250101,China)

机构地区：[1]山东理工大学机械工程学院,淄博255049 [2]山东中车风电有限公司,济南250101

出　　处：《太阳能学报》2021年第12期99-103,共5页Acta Energiae Solaris Sinica

基　　金：国家重点研发计划(可再生能源与氢能专项)(2018YFB1501203):叶片全尺度结构力学测试系统研制;山东省自然科学基金(ZR2019MEE076):面向风电叶片双轴疲劳试验的电磁复合激振理论与方法。

摘　　要：针对风电叶片两加载源疲劳加载试验中加载器相对位置实时变化的问题,提出基于D-H坐标系建立两加载源空间位姿监测系统,并基于递推最小二乘法开发两加载源同步激振控制策略。根据风电叶片疲劳加载试验过程中对激振力方向一致的要求,分别利用激光测距仪与角度传感器监测两作动器空间位置与摆锤角度,建立绝对空间内的位姿监控体系;将位姿监测与同步激振实时控制相结合,基于递推最小二乘法设计一种适用于两加载源同步激振的控制器。最后,搭建了一套现场疲劳加载试验系统。试验结果表明,基于D-H坐标系与递推最小二乘法建立的两加载源同步激振控制系统,激振力更大,振幅稳定性与系统鲁棒性较好。Aiming at the real-time change of the relative position of the loader in the wind turbine blade fatigue loading test of two loading sources,a spatial pose monitoring system of two loading sources was established based on D-H coordinate system,and the synchronous excitation control strategy of two load sources was developed based on the recursive least square method. According to the requirements for the direction of the exciting force during the fatigue loading test of wind turbine blades,the spatial position of the two actuators and the angle of the pendulum were monitored by using a laser range finder and an angle sensor respectively,by which a posture monitoring system in absolute space was established. Combining the pose monitoring with the real-time control of synchronous excitation were combined,a controller for synchronous excitation of two load sources was designed based on the recursive least squares method. Finally,an on-site fatigue loading test system was built. The test results indicate that the established synchronous excitation control system of two loading sources was established based on the D-H coordinate system and recursive least square method has the characteristics of greater excitation force,better anplitude stability and system robutness.

关 键 词：风电叶片 疲劳加载 同步系统 最小二乘法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]