CAJ | 학술논문

针对风电叶片单点疲劳加载方法驱动能力不足且试验周期较长的问题，设计一种新型两点疲劳加载测试系统。通过对加载系统进行合理简化，建立风电叶片两点疲劳加载振动系统的机电耦合数学模型。利用 Matlab ／Simulink软件建立加载系统的仿真模型，对加载系统的机电耦合过程进行仿真，得到不同电动机转速、不同初始相位差对加载系统机电耦合过程的基本影响规律。最后搭建了一套小型风电叶片两点疲劳加载试验系统，得到试验结果与仿真结果规律基本吻合，验证了数学模型和仿真模型的准确性。为后续两点疲劳加载试验的精确控制以及叶片的优化设计提供了理论依据。
침대풍전협편단점피로가재방법구동능력불족차시험주기교장적문제，설계일충신형량점피로가재측시계통。통과대가재계통진행합리간화，건립풍전협편량점피로가재진동계통적궤전우합수학모형。이용 Matlab ／Simulink연건건립가재계통적방진모형，대가재계통적궤전우합과정진행방진，득도불동전동궤전속、불동초시상위차대가재계통궤전우합과정적기본영향규률。최후탑건료일투소형풍전협편량점피로가재시험계통，득도시험결과여방진결과규률기본문합，험증료수학모형화방진모형적준학성。위후속량점피로가재시험적정학공제이급협편적우화설계제공료이론의거。
Aiming at lack of driving capacity and longer test period of a single-point fatigue loading system,a dual-point fatigue loading system for wind turbine blades was designed.By simplifying the loading system rationally,its electromechanical coupling mathematical model was established,and then its simulation model was built with Matlab /Simulink software.By simulating the electromechanical coupling process of the dual-point fatigue loading system,the basic influence laws of different motor speeds and different initial phases on the electro-mechanical coupling process were obtained.Finally,a small dual-point fatigue loading test system for wind turbine blades was set up.The test results agreed well with the simulation ones.The correctness of the mathematical model and simulation model were validated.The study results provided a theoretical basis for the subsequent precise control of dual-point fatigue loading tests and optimal design of blades.