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by Elham.Tofighi
Thu Feb 14, 2019 7:58 pm
Forum: Wind Farm Modeling
Topic: Wind Farm - Fast
Replies: 5
Views: 8374

Re: Wind Farm - Fast

Dear Jason,

I was wondering how I can download the FAST.farm code frmo NREL's website (is there a donwload link?). Could you please advise?

Also, are there any manuals, documents or instructions on how to work with it?
by Elham.Tofighi
Mon Feb 12, 2018 2:10 am
Forum: Computer-Aided Engineering Software Tools
Topic: Drive train torsion output
Replies: 6
Views: 1036

Re: Drive train torsion output

Dear Jason,

Thank you for your helps. Seems the last error was due to the Matlab version incompatibility. On my PC, FAST 7 is not very stable on Matlab 2017 but works fine with 2014. Also I can now read LSSTipPxa as well. Thanks alot!
by Elham.Tofighi
Tue Feb 06, 2018 9:56 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Drive train torsion output
Replies: 6
Views: 1036

Re: Drive train torsion output

Dear Jason, The output file looks fine until I add "LSSTipPxa" to the output list in '.fst' file. Seems like FAST 7 Matlab S-Function, treats this parameter as an invalid output name and crashes immediately when I run it. Then the generated output file is empty. I tried to use other names ...
by Elham.Tofighi
Mon Feb 05, 2018 10:32 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Drive train torsion output
Replies: 6
Views: 1036

Re: Drive train torsion output

Dear Jason, Thank you very much for your quick reply. Adding the low-speed shaft output ("LSSGagPxa") works fine and gives me the output between 0 to 360 which seems to be correct. However, when I add "LSSTipPxa" to the output list, I get this error: Output returned by S-function...
by Elham.Tofighi
Mon Feb 05, 2018 2:12 am
Forum: Computer-Aided Engineering Software Tools
Topic: Drive train torsion output
Replies: 6
Views: 1036

Drive train torsion output

Hi, Is there a Drive-train torsion in Fast 7 as simulation output? When the drive-train DOF is enabled for Linearization, torsion is one of the output states. So, in ".fst" file output section, what can we use to see one of these outputs? Drive-train torsion, Drive-train torsion ratio, Gen...
by Elham.Tofighi
Thu Oct 13, 2016 10:03 am
Forum: Computer-Aided Engineering Software Tools
Topic: Compiling FAST 8 - Windows 10
Replies: 1
Views: 791

Compiling FAST 8 - Windows 10

Dear Sir, I have been trying to compile FAST 8 on Windows 10. I have below software: " Microsoft Visual Studio Community 2015 Version 14.0.25431.01 Update 3" and "Intel® Parallel Studio XE 2017 Composer Edition for Fortran Windows Integration for Microsoft Visual Studio* 2015, Version...
by Elham.Tofighi
Tue Sep 13, 2016 5:31 am
Forum: Computer-Aided Engineering Software Tools
Topic: LIDAR for FAST8
Replies: 3
Views: 1546

FAST8 - setting up the LIDAR

Dear Bonnie, Thanks for the document you shared with me. here is Have few more questions: 1- For the LIDAR implementation, [3, UseLidar, LidRadialV] should be added to the S-function. Does this mean we should modify it as: [3, 1, 0] for a normal LIDAR application? or should "1" and "0...
by Elham.Tofighi
Tue Sep 13, 2016 5:26 am
Forum: Inflow Turbulence
Topic: Linking measured wind data from LIDAR to Turbsim
Replies: 10
Views: 10145

Re: Linking measured wind data from LIDAR to Turbsim

Hi,

the problem is the last post are also my questions. Could you please advise on them?
by Elham.Tofighi
Tue Sep 13, 2016 4:49 am
Forum: Computer-Aided Engineering Software Tools
Topic: 5MW -WT, FAST8, adjustment
Replies: 1
Views: 923

5MW -WT, FAST8, adjustment

Dear Sir, I used FAST7 as the turbine model for my control design verifications. Since I need to use LIDAR measurements in my controller, I decided to use FAST8. I could set-up the test18 in FAST8 to work with the baseline controller (exactly the same controller that I used with FAST7). I ran simula...
by Elham.Tofighi
Mon Aug 15, 2016 6:36 pm
Forum: Computer-Aided Engineering Software Tools
Topic: LIDAR for FAST8
Replies: 3
Views: 1546

LIDAR for FAST8

Dear Sir, I would like to add the LIDAR module to FAST8 for my feedforward controller design tests. However, have a little bit of difficulty in finding relevant information on how to change the S-function, OutList and OutData, and code settings :idea: Could you please provide me with any documentati...
by Elham.Tofighi
Sun Jul 24, 2016 5:41 pm
Forum: Computer-Aided Engineering Software Tools
Topic: fatigue loads, DEL, Mlife,
Replies: 1
Views: 877

fatigue loads, DEL, Mlife,

Dear Sir, I need to calculate fatigue loads on the turbine tower (My_T = hH (cT*x_dot_T + kT* xT)). From what I learned from NREL website, I can use Mlife codes to for fatigue load computation. I downloaded the files and studied the pdfs regarding the theory of fatigue load calculations and Mfile ma...
by Elham.Tofighi
Thu May 12, 2016 11:05 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Learizing Baseline 5MW Wind Turbine with FAST
Replies: 81
Views: 20610

Re: Learizing Baseline 5MW Wind Turbine with FAST

Dear Jason, Thank you for your reply. I downloaded the MBC and gave it the .lin file I had. "GetMats" reads the file and fetches the FAST linearization output file information. However mbc3, states that there are no rotating states (The green box in the screen shot). I set the NAzimStep = ...
by Elham.Tofighi
Wed May 11, 2016 8:57 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Learizing Baseline 5MW Wind Turbine with FAST
Replies: 81
Views: 20610

Re: Learizing Baseline 5MW Wind Turbine with FAST

I put a screenshot of matrices for convenience.
by Elham.Tofighi
Wed May 11, 2016 8:54 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Learizing Baseline 5MW Wind Turbine with FAST
Replies: 81
Views: 20610

Re: Learizing Baseline 5MW Wind Turbine with FAST

Dear Jason, Thank you for your quick reply. So as I understand, if the first derivative of the azimuth angle of the generator is the generator speed (lets call it Omega), then azimuth angle of the generator DOF (i.e. Theta ) would be the angle of generator's rotor angle? please correct me if I am wr...
by Elham.Tofighi
Wed May 11, 2016 1:16 am
Forum: Computer-Aided Engineering Software Tools
Topic: Learizing Baseline 5MW Wind Turbine with FAST
Replies: 81
Views: 20610

Re: Learizing Baseline 5MW Wind Turbine with FAST

Hi Jason, By Activating GenDOF, 2 row/column is added to the state space matrices. Could you please explain what are the units of this variables? for examle, in the output ".lin" file it says: Row/column 3 = Variable speed generator DOF (internal DOF index = DOF_GeAz) I suppose it is the g...

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