Search found 10 matches

by zarei.atefe
Tue Nov 05, 2019 6:43 am
Forum: Controls
Topic: Pitch and Torque Cntrl (Region 3)
Replies: 26
Views: 5000

Re: Pitch and Torque Cntrl (Region 3)

thanks for your answer

I download AeroDyn v15.04 but the AeroDyn Input file related to Test 11-14 (1.5 MW Wind turbine) does not exist. How to find it?
by zarei.atefe
Sun Nov 03, 2019 1:53 pm
Forum: Controls
Topic: Pitch and Torque Cntrl (Region 3)
Replies: 26
Views: 5000

Re: Pitch and Torque Cntrl (Region 3)

hi mr jonkman Error reported by S-function 'FAST_SFunc' in 'OpenLoopA/FAST Nonlinear Wind Turbine/S-Function': FAST_Solution:FAST_AdvanceStates:AD_UpdateStates:BEMT_UpdateStates(node 3, blade 3):BEMT_UnCoupledSolve:DeterminePhiBounds:There is no valid value of phi for these operating conditions! Vx ...
by zarei.atefe
Wed Jun 12, 2019 12:53 am
Forum: Controls
Topic: nonlinear state-space model
Replies: 12
Views: 1500

Re: nonlinear state-space model

thanks.
by zarei.atefe
Tue Jun 11, 2019 11:12 am
Forum: Controls
Topic: nonlinear state-space model
Replies: 12
Views: 1500

Re: nonlinear state-space model

i need the nonlinear differential equations of the wind turbine for region 3 goals.
But I can not find them.

thanks.
by zarei.atefe
Tue Jun 11, 2019 8:12 am
Forum: Controls
Topic: nonlinear state-space model
Replies: 12
Views: 1500

Re: nonlinear state-space model

Thank you very much for your help
Now, my question is, as you say, since non-linear equations of region 3 wind turbines are not specifically available, so can not design nonlinear controllers which require nonlinear dynamics?
by zarei.atefe
Tue Jun 11, 2019 5:00 am
Forum: Controls
Topic: nonlinear state-space model
Replies: 12
Views: 1500

Re: nonlinear state-space model

thanks
and So, my question is, a nonlinear relation between the pitch angle and the rotor speed is available?
by zarei.atefe
Tue Jun 11, 2019 3:53 am
Forum: Controls
Topic: nonlinear state-space model
Replies: 12
Views: 1500

Re: nonlinear state-space model

theta is the output pitch angle given into the model.
Is it possible to email The nonlinear equations of motion used by FAST to me ?
My work depends heavily on having nonlinear equations of motion and pitch actuator.

thanks for your help.
by zarei.atefe
Tue Jun 11, 2019 1:59 am
Forum: Controls
Topic: nonlinear state-space model
Replies: 12
Views: 1500

Re: nonlinear state-space model

Hello thanks for your answer To design a non-linear controller, I must have a nonlinear equation of pitch actuator and blade root bending moment related to the 13th test of FAST8.16. Can you give me them? In fact, I want the nonlinear relation of the attached equation related to the 13th test of FAS...
by zarei.atefe
Fri May 03, 2019 9:22 am
Forum: Controls
Topic: Linearization of the full system
Replies: 7
Views: 1984

Re: Linearization of the full system

hello i have a question about linearization.I want to design a PID controller for pitch control. I need to use linearization and must pcmode = 0 in the linearization, but in this mode, the pitch control command is not taken from the simulink and the pitch angles are commanded zero. How can I use pcm...
by zarei.atefe
Fri Apr 26, 2019 12:54 am
Forum: Controls
Topic: nonlinear state-space model
Replies: 12
Views: 1500

nonlinear state-space model

hello I want to design a nonlinear individual pitch controller for wind turbine load reduction in my master's thesis, but I don't have the nonlinear state-space model of the 1.5 MW wind turbine available in the FAST test. It is essential for me to have those non-linear equations to design a nonlinea...

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