风电叶片, 静力加载试验台, 控制系统, 解耦, 控制策略

A MW wind turbine static loading control system was designed and elaborating on the principles and the structure of the loading bench. The least square method was used to fit the data from the directions and improved the data precision. A distributed loading detection and control system were constructed based on controller area network. The coupling among the multivariable loading system can be treated as the disturbances on single loop. A simple static loading model was built based on AMESim and Matlab/Simulink softwares and the MFAC algorithm was used to the tract decoupling control of static loading trial firstly. The simulation results show that MFAC algorithm can reduce the tract coupling and make the tract error less than 2.0% F.S under the condition of variable stiffness and variable damping. Trial shows that it can make the large blade load steady and coordinate, at the same time, loading precision is superior to 1.0％F.S in particular stage. The static loading bench is consistent with the MW wind turbine blade static loading test requirements fully.