Model free adaptive control and implementation for multi-point graded static loading of wind turbine blades
At present,the static loading test of megawatt level wind turbine blades is generally done by multi-point synchronous loading method.To solve the problem of multi-point synchronous coordination control and mutual coupling of forces at various loading points in static loading tests,an adaptive control algorithm based on free model is proposed,and the experimental system was built through servo loading system,force sensor,three coordinate measuring instrument and load controller.According to the method,the rotating speed of servo motor is adjusted to adjust the change rate of loading load in real time to realize the synchro-nous,uniform and stable change of loads at per point.The vertical loading mode is adopted for loading,which greatly saves the floor area on the basis of meeting the test requirements.The field test shows that the loading time is controlled within 3 min,and the loading synchronization is controlled within 1%,and the maximum load can reach 300 kN,which shows the method has good adaptability to various blades and has certain uni-versality.
wind turbine bladestatic testservo loading systemadaptive control
NETL
NSTL
万方数据
维普
