Search found 8 matches

by Deniz.Kepez
Fri Apr 23, 2021 10:56 am
Forum: Controls
Topic: A question concerning Cp surface generation with OpenFAST
Replies: 22
Views: 1394

Re: A question concerning Cp surface generation with OpenFAST

I am sorry I do not know which generator model is used in CART WT. Maybe someone else can you with that.

Best regards.
by Deniz.Kepez
Thu Apr 22, 2021 5:42 pm
Forum: Controls
Topic: A question concerning Cp surface generation with OpenFAST
Replies: 22
Views: 1394

Re: A question concerning Cp surface generation with OpenFAST

Hi again, Thank you for sharing your scripts. I was refering to the surface plot .m script but thanks for more detailed explanation maybe someone else can benefit from them. Best regards. Edit: I see that you are trying to get gain scheduling for pitch controller. I have used "Advanced Control ...
by Deniz.Kepez
Thu Apr 22, 2021 12:41 pm
Forum: Controls
Topic: A question concerning Cp surface generation with OpenFAST
Replies: 22
Views: 1394

Re: A question concerning Cp surface generation with OpenFAST

Dear OpenFAST team and users, I have generated Cp surfaces for different wind speeds for my turbine model and I wanted to know if my results are OK. Can you please comment? I used 30 simulations per windspeed and I set all degrees of freedom in elastodyn files to 'false'. each simulation had a diff...
by Deniz.Kepez
Sat Mar 27, 2021 6:29 pm
Forum: Computer-Aided Engineering Software Tools
Topic: NuMAD Stiffness and Mass Matrices
Replies: 2
Views: 549

Re: NuMAD Stiffness and Mass Matrices

Dear Dr.Jason Thank you for your reply. I think I have found the mass matrices. If anyone need it they are located inside the 'admout.txt' interim result file and also stiffness matrices are located inside the 'kout.txt' file. Best regards, Deniz Edit: I was mistaken. It was not the mass matrices fi...
by Deniz.Kepez
Thu Mar 25, 2021 4:29 pm
Forum: Computer-Aided Engineering Software Tools
Topic: NuMAD Stiffness and Mass Matrices
Replies: 2
Views: 549

NuMAD Stiffness and Mass Matrices

Hi, I am trying to obtain my 6x6 mass and stiffness matrices through NuMAD. NuMAD output is designed for FAST7 I guess and I can only obtain ElastoDyn input files through it. While looking for the interim output files in NuMAD, I find the stiffness matrices. However, non-diagonal terms in these matr...
by Deniz.Kepez
Fri Mar 19, 2021 5:23 pm
Forum: Controls
Topic: Obtaining sensitivity of aerodynamic power to rotor-collective blade pitch
Replies: 4
Views: 626

Re: Obtaining sensitivity of aerodynamic power to rotor-collective blade pitch

Dear Dr. Jason,

Thank you I was able to import multiple linearization files at the same time.

Best regards,
Deniz
by Deniz.Kepez
Fri Mar 19, 2021 4:50 pm
Forum: Controls
Topic: Obtaining sensitivity of aerodynamic power to rotor-collective blade pitch
Replies: 4
Views: 626

Re: Obtaining sensitivity of aerodynamic power to rotor-collective blade pitch

Dear Dr. Jason, Thank you very much for your reply. I was able to obtain the "D" matrix. I was reading https://www.nrel.gov/docs/fy17osti/67015.pdf and at pg.12 I saw that for every 10 deg rotation a linearization is made and matrices are azimuth-averaged. Right now I can use fx_getMats.m ...
by Deniz.Kepez
Fri Mar 19, 2021 10:15 am
Forum: Controls
Topic: Obtaining sensitivity of aerodynamic power to rotor-collective blade pitch
Replies: 4
Views: 626

Obtaining sensitivity of aerodynamic power to rotor-collective blade pitch

Hi, I am trying to obtain aerodynamic power sensitivity to rotor-collective blade pitch. Reading through NREL 5MW paper I see that it is obtained through linearization process in OpenFAST. I cannot seem to find any output of it in linearization file. Is it obtained through another process after the ...

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