Linearization on FAST v7 - Wind input

Topics of general, but wind-related interest.

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Bruno.Cunha
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Linearization on FAST v7 - Wind input

Postby Bruno.Cunha » Mon May 06, 2019 11:25 am

Dear Forum Members,
I´ve been trying to generate state space linear using fast linearization, i get the model but there is something i can not figure it out and i dont know why. Well basically i cant see how to insert the wind as input in the state space model (i´m using simulink) that Fast 7 generates, since in this version the wind only appears as disturbance, can anyone help me?

Thank you very much.

Jason.Jonkman
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Re: Linearization on FAST v7 - Wind input

Postby Jason.Jonkman » Mon May 06, 2019 12:56 pm

Dear Bruno,

I'm not really sure I understand your question, but in FAST v7, the "input" vector to the linear state-space were separated into "control input" and "wind disturbance" vectors. In FAST v8 and OpenFAST, these are not separated out, but are both elements of the "inputs" vector.

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


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