NWTC

thanks.

i need the nonlinear differential equations of the wind turbine for region 3 goals.
But I can not find them.

thanks.

Thank you very much for your help
Now, my question is, as you say, since non-linear equations of region 3 wind turbines are not specifically available, so can not design nonlinear controllers which require nonlinear dynamics?

thanks
and So, my question is, a nonlinear relation between the pitch angle and the rotor speed is available?

theta is the output pitch angle given into the model.
Is it possible to email The nonlinear equations of motion used by FAST to me ?
My work depends heavily on having nonlinear equations of motion and pitch actuator.

thanks for your help.

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