Cut-Out Wind Speed / Control in Fast v8

Dear Jason,

I am running FAST v8 (w/ AeroDyn v15) to simulate a P-v-curve, with pitch-controlled blades.
My goal is as follows: If the rated windspeed is reached, the power should remain constant (through blade-pitching) until the windspeed reaches the cut-out speed.
The plot should look like the blue curve (as shown in the ServoDyn Workshop PDF):

P-V-curve Reference.png

My question is:
Does the controller in FAST v8 “shut down” the turbine automatically if the cut-out wind speed is reached, so that the power drops down to 0 as in the plot?
I tried the bladed-style DLL (“DISCON_win32.dll”) in ServoDyn and left the input file as default, but the turbine still continues to run after the cut-out speed, which should be 25 m/s. I am using a slighlty modified “Test19” 5MW NREL model from the CertTest folder (with every DOF off, except Generator, Drivetrain and Yaw , no tower influences and a hubheight windfile).

Here is the plot of my P-t-curve, where I increased the wind from 0-100s until it reached 11.4 m/s, then left the windspeed constant until 200 s, then increased it again. The curve gets very weird at the end.

Thank you in advance for any help!

Best Regards,

Dear Randi,

The baseline controller of the NREL 5-MW turbine supplied with Test19 applies only to normal operation; it does not include control logic for start-up and shut-down scenarios. The NREL 5-MW specifications report explains the functionality of the baseline controller in detail: You’ll have to modify the controller or manually impose the shut-down.

Best regards,

Dear Jason,

Thank you for the clarification!

Best regards,