Search found 21 matches

by Amadou.Damba
Thu Mar 23, 2017 2:18 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason,

You are right. I have to know more about recompiling FAST.

Best regards,
by Amadou.Damba
Wed Mar 22, 2017 4:30 pm
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason, Thanks for the replay and file. The compiler i am using is gfortran/gcc. i think my problem is that my FAST is running on Window and Linux at the same time. My new FAST doesn't contain the "dependencies" order any more. I recompiled to obtaine the FAST_Library_glin32.so and som...
by Amadou.Damba
Wed Mar 22, 2017 4:58 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason, I must rectify my declaration before: i just recompiled FAST without changing for Simulink. Now i found that COMPILE_SIMULINK is involved in the files ServoDyn.f90, FAST_Mods.f90 and FAST_Subs.f90. I don't know how to set it. could you give me some directives to do that please? Best rega...
by Amadou.Damba
Thu Mar 16, 2017 7:54 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason,

Thank you for your replay. Yes i recompiled FAST. I will set the compiler directive in the next days.

Best regards
Damba
by Amadou.Damba
Wed Mar 15, 2017 8:31 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason, I try to run FAST8.v12 S-Function in real time simulator OPAL RT, which is working in Linux system. Therefore i did some changes in FAST to adapt the model to the Linux. Now my model works well with the Controll modes 1 and 3. But if i want to use my own controller from simulink(mode PCM...
by Amadou.Damba
Tue Feb 14, 2017 1:59 am
Forum: Controls
Topic: FAST linearization model in Simulink
Replies: 14
Views: 5518

Re: FAST linearization model in Simulink

Dear Ali,

Thanks for your replay. I will try with this method.

Best regard
Damba
by Amadou.Damba
Mon Jan 30, 2017 4:54 am
Forum: Controls
Topic: FAST linearization model in Simulink
Replies: 14
Views: 5518

Re: FAST linearization model in Simulink

Dear Jason,

Thanks for your replay. that is what i want to do. however the S-Function is working at different wind speed. i don't know how i can control this model for different wind speed if i have one matrix for every operating point.

Best regards,
Damba
by Amadou.Damba
Thu Jan 26, 2017 1:50 pm
Forum: Controls
Topic: FAST linearization model in Simulink
Replies: 14
Views: 5518

Re: FAST linearization model in Simulink

Dear Jason, Thanks for the replay, I realised that i need some clarifications about the feature of linearised model. Could you explain me please what i can do with the linearized model of FAST? I think i can use the matrices als feedback controller or estimator for pitch control in FAST nonlinear mo...
by Amadou.Damba
Thu Jan 26, 2017 3:08 am
Forum: Controls
Topic: FAST linearization model in Simulink
Replies: 14
Views: 5518

Re: FAST linearization model in Simulink

Dear Jason I have a question about the linear model. I linearized FAST at 10 m/s. My Linear time invariant model is perturbed with a wind speed of 0.1m/s added to the output (yop). The result is in the attachment. You said that the linearized model output is only valid for small perturbations about ...
by Amadou.Damba
Thu Jan 12, 2017 2:46 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason,

Thanks for the confirmation of my supposition.

Best regard
Damba
by Amadou.Damba
Wed Jan 11, 2017 10:36 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason, Thanks for your replay. in my case the generator degree of freedom(GenDOF) is disabled. only the FlapDOF1, FlapDOF2 and DrTrDOF are enabled. That would mean i have fixed-free condition and the frequencys will be 0,69Hz for drivetrain, 0,79Hz for FlapDOF1 and 2,3Hz for FlapDOF2. Am i righ...
by Amadou.Damba
Wed Jan 11, 2017 7:53 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason,

I applied an FFT on my 5MW Turbine. Finaly the best result was without any exitation. Now i get all natural frequency. But for Drivetrain i get 0.69Hz when the rotor is spining at 12 rpm. I expected 1,7Hz like in campbell diagram. is there everiything wrong in my FFT?

Best regard
Damba
by Amadou.Damba
Fri Dec 16, 2016 9:02 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason,

Thank you for this explanation. Now i have to understand how TurbSim works.

Best regards
Amadou
by Amadou.Damba
Thu Dec 15, 2016 12:16 pm
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason, I have somee questions about natural frequencys. i want to identify that in nonlinear model with FFT and compare with my result off Campbell diagram. But it is dificult to find out frequency. for the exitation i found some thing about "with white noise (e.g., broadband turbulence)&q...
by Amadou.Damba
Tue Dec 13, 2016 6:47 am
Forum: Structural Analysis
Topic: Campbell diagram for 5MW turbine rotor
Replies: 41
Views: 19409

Re: Campbell diagram for 5MW turbine rotor

Dear Jason,

Thank you very much for your replay. It was so hepful for me. now i have the right result.

Best Regard
Amadou

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