NREL 5-MW reference turbine - CP, CQ, CT Coefficients

Wind & Water Rotor Aerodynamics
29

Dear Jason,

In the post I am citing bellow, Rannam Chaaban asked you about the values to set for parameters in SIMPLE VARIABLE-SPEED TORQUE CONTROL.

As you answered in your reply, I would also expect to give VS_Rgn2K a value of 0.0255764 and VS_SlPc a value of 10.

Nevertheless, I do not understand why should VS_RtGnSp be the 99% of rated HSS speed.

As far as I understand, that point (wGen = 1162 rpm) in the torque curve corresponds to a higher torque value (43528.84 Nm). This was recently discussed in the following post: [url]NREL 5MW Torque vs GenSpeed Curve Points - #3 by Jon.Martinez].

Therefore, I would expect VS_RtGnSp to be the rated generator speed: 1173.7 rpm, which would correspond to the rated torque of 43093.55 Nm.

Here I put a summary of the values that I would expect:

---------------------- SIMPLE VARIABLE-SPEED TORQUE CONTROL --------------------
1173.7 VS_RtGnSp
43093.55 VS_RtTq
0.0255764 VS_Rgn2K
10 VS_SlPc

Are these values OK?

Thank you in advance,

Best regards,

Jon Martínez Rico