Wind turbine modeling and load analysis based on bladed

Momentum theory model which was widely used in pitch control can´t calculate wind turbine load, so it can´t meet pitch control research needs of large-scale wind turbine. In this paper, the traditional model based on momentum theory firstly was improved to be able to calculate load under some hypothesis. Then the wind tubine model suitable for individual pitch control was built based on blade element theory, and wind shear and tower shadow on load of wind turbine was calculated and analyzed. Finaly, the model was simulaed in the turbulent flow conditions and load was analyzed by Bladed.Simulations indicate that the model bulit in the paper can be used in simulation and vertificaton of individual pitch control, and the conclusions drawn by load analysis can provide theoretic basis and the reference standard for individual pitch control strategy.