The article suggests a load prediction control strategy for the independent pitch system based on the online identification model of the parameters in an effort to address the impact of time-varying wind speed on the aerodynamic load coefficient of wind turbines and the ensuing increase in the unbalanced load of the wind turbine. Using FFRLS
the time-varying factors in the independent pitch system are first detected online. Based on these parameters
a multi-step prediction model is then built. Lastly
rolling optimization is used to determine the blade's pitch angle in real time. The experiments based on the NREL 5 MW wind turbine model in FAST-Matlab co-simulation validate the prediction accuracy of the multi-step prediction model constructed based on the online identification parameters and the benefits of the designed control strategy in mitigating the unbalanced load of the wind turbine.
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