FAST theory manual

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Victor.Barrio
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Location: Spain

Re: FAST theory manual

Postby Victor.Barrio » Wed Apr 03, 2019 8:52 am

Could you please send me the Unofficial FAST theory manual?

My email is viictor_dbl@hotmail.com

Thank you in advance

Jason.Jonkman
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Location: Boulder, CO
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Re: FAST theory manual

Postby Jason.Jonkman » Wed Apr 03, 2019 9:22 am

Sent.
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Mohamed.Fekry
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Re: FAST theory manual

Postby Mohamed.Fekry » Wed Apr 24, 2019 7:40 pm

Dear Dr Jason
I am a new developer of FAST. I need some help to understand the source code (Elastodyn , servodyn, Aerodyn) as I am going to make some modification to the code. Also, I have a good experience in Fortran but i don't know how to start to understand the code. What are the prerequisite materials should I read before reading the code? What are the theories behind that code ? what are the numeral solver techniques for that stable simulation ?

Could you please send me the Unofficial FAST theory manual and any other necessary materials that you recommend for me? Thanks in advance
Fekrym@windowslive.com

Jason.Jonkman
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Re: FAST theory manual

Postby Jason.Jonkman » Wed Apr 24, 2019 8:31 pm

Dear Mohamed,

I've sent you the unofficial FAST theory manual.

All of the FAST v8 / OpenFAST modules follow the same format as dictated by the FAST modularization framework with distinct routines for initialization (*_Init), updating states from t to t+dt (*_UpdateStates), calculating output (*_CalcOutput), and ending (*_End). See the FAST modularization framework for general documentation of how the modules are structured and programming protocols: https://nwtc.nrel.gov/FAST-Developers.

Further questions on the source code implementation and compiling are best supported by the OpenFAST development community by posting questions on OpenFAST issues: https://github.com/OpenFAST/openfast/issues.

I hope that helps.

Best regards,
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Tomas.Cortes
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Re: FAST theory manual

Postby Tomas.Cortes » Thu May 02, 2019 12:36 pm

Dear Jason,

Can you please send me the unofficial FAST theory manual?

Best regards,

Tomás

Jason.Jonkman
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Re: FAST theory manual

Postby Jason.Jonkman » Thu May 02, 2019 5:33 pm

Sent.
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Juan.Fernandez
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Location: Spain

Re: FAST theory manual

Postby Juan.Fernandez » Wed May 08, 2019 1:21 am

Dear Dr Jason,

I have been trying to understand and learn everything I could about the FAST code for the last 2 months.
Now I am looking deeper into the source code of the module ServoDyn, and I would very much appreciate if you could send me the unofficial FAST theory manual.
My e-mail is juan.fernandez@sener.es
Thank you in advance,

Juan

Jason.Jonkman
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Re: FAST theory manual

Postby Jason.Jonkman » Wed May 08, 2019 6:45 am

Dear Juan,

I've sent you the "unofficial FAST theory manual". However, this document mostly focuses on the equations of motion of the ElastoDyn module.

Which control model from ServoDyn are you reviewing?

Best regards,
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Juan.Fernandez
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Organization: Sener
Location: Spain

Re: FAST theory manual

Postby Juan.Fernandez » Thu May 09, 2019 1:31 am

Dear Jason,

I am trying to revise a BladedInterface dll control, trying to understand how every routine works, and which are prone to be modified to implement yaw control in the dinamic library DISCON.

Reading through the forum i found a concerning issue regarding yaw control using this type of control though, which I don't know if it is solved yet.
This one is the one mentioned in https://wind.nrel.gov/forum/wind/viewtopic.php?f=30&t=1844&p=9798&hilit=yaw#p9798, "Yaw Control Using Bladed dll Method", in which you said the code of ServoDyn had a bug. Is this already solved, or is it still an issue?

Thank you for your quick response and help.

Best regards,

Juan

Jason.Jonkman
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Re: FAST theory manual

Postby Jason.Jonkman » Thu May 09, 2019 11:29 am

Dear Juan,

Unfortunately, this bug has not yet been fixed in OpenFAST. You can track the progress here: https://github.com/OpenFAST/openfast/issues/25.

Best regards,
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Martin.Reich
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Location: Germany

Re: FAST theory manual

Postby Martin.Reich » Thu Jun 13, 2019 2:48 am

Dear Jason,

could you please send me the unofficial FAST theory manual too?

Thanks
Martin

Jason.Jonkman
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Re: FAST theory manual

Postby Jason.Jonkman » Thu Jun 13, 2019 3:01 am

Sent.
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Jieyan.Chen
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Organization: TAMU
Location: US - Texas

Re: FAST theory manual

Postby Jieyan.Chen » Thu Jun 13, 2019 8:36 am

Dear Dr. Jonkman,

Could you please e-mail me a copy of "Fast Theory Manual".
My email address is: jieyan@tamu.edu

Thank you for your time.

Best regards,
Jieyan Chen

Jason.Jonkman
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Re: FAST theory manual

Postby Jason.Jonkman » Thu Jun 13, 2019 1:27 pm

Sent.
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Shuijin.Li
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Joined: Tue Nov 20, 2018 8:35 am
Organization: University of Dundee
Location: UK

Re: FAST theory manual

Postby Shuijin.Li » Tue Jun 18, 2019 6:26 am

Dear Dr. Jonkman,

Could you please send me a copy of "Fast Theory Manual"?
My email address is: skli@dundee.ac.uk.

Thank you for your kindly help in advance.

Sincerely,
Shuijin


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