Search found 4 matches

by Tore.Bakka
Mon May 21, 2012 12:13 am
Forum: Controls
Topic: Closed loop eigenvalues
Replies: 8
Views: 8185

Re: Closed loop eigenvalues

Thanks so much for quick and helpful reply.

Tore
by Tore.Bakka
Wed May 16, 2012 7:37 am
Forum: Controls
Topic: Closed loop eigenvalues
Replies: 8
Views: 8185

Re: Closed loop eigenvalues

Hi Jason, I read the other forum topics and I also suspect this is the reason for the extra mode. My last question conserns the interpretation of the campell diagram. Perhaps you could help me understand the diagram better. I attached the excel sheet. Is it correct that the natural frequency for for...
by Tore.Bakka
Wed May 16, 2012 12:47 am
Forum: Controls
Topic: Closed loop eigenvalues
Replies: 8
Views: 8185

Re: Closed loop eigenvalues

Hi Jason, Thank you for the helpful replay. This gives me a good startingpoint in choosing the controller frequency. I linearized the model as you suggested, about a steady-state condition with a wind speed of 15 m/s. But I think I am reading the campell diagram wrong. I think I have pasted inn all ...
by Tore.Bakka
Tue May 15, 2012 1:57 am
Forum: Controls
Topic: Closed loop eigenvalues
Replies: 8
Views: 8185

Closed loop eigenvalues

I am trying to make a contorller for the OC3 5MW floating turbine. I have some questions about the closed loop eigenvalues that I hope someone can help me with. I linearize the model about its initial conditions with a constant windspeed of 15 m/s. I fill out the CampellDiagram.xls and look at the o...

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