Search found 15 matches
- Tue Dec 03, 2019 3:16 am
- Forum: Controls
- Topic: Blade pitch control
- Replies: 26
- Views: 11871
Re: Blade pitch control
thanks for your help. i read it. There, it is said that ωn = 4Ω, where Ω is the rotor angular velocity and I've considered 20,463 rpm for the rotor speed and it is said ξ = 80% of critical damping. I want to know how much the critical damping value is? Yes i am working FAST-Simulink interface now. b...
- Fri Nov 29, 2019 3:06 pm
- Forum: Controls
- Topic: Blade pitch control
- Replies: 26
- Views: 11871
Re: Blade pitch control
hi every one
How much should be used to the value of time constant of the 1.5 MW wind turbine pitch actuator for the FAST reference turbine?
How much should be used to the value of time constant of the 1.5 MW wind turbine pitch actuator for the FAST reference turbine?
- Fri Nov 29, 2019 9:48 am
- Forum: Controls
- Topic: Blade pitch control
- Replies: 26
- Views: 11871
Re: Blade pitch control
Yes, I'm running from Simulink.
- Fri Nov 29, 2019 9:09 am
- Forum: Controls
- Topic: Blade pitch control
- Replies: 26
- Views: 11871
Re: Blade pitch control
No I did not enable these. I just set PCMODE to 4 and then run the simulation.
- Fri Nov 29, 2019 3:12 am
- Forum: Controls
- Topic: Blade pitch control
- Replies: 26
- Views: 11871
Re: Blade pitch control
Hi everyone
I'm working on individual pitch control and set PCMode to 4 to get the pitch command from the simulink controller but the pitch remains fixed to the final value of 2.6 and does not command the simulink. Where is the problem?
thanks
I'm working on individual pitch control and set PCMode to 4 to get the pitch command from the simulink controller but the pitch remains fixed to the final value of 2.6 and does not command the simulink. Where is the problem?
thanks
- Tue Nov 05, 2019 6:43 am
- Forum: Controls
- Topic: Pitch and Torque Cntrl (Region 3)
- Replies: 36
- Views: 11135
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?
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?
- Sun Nov 03, 2019 1:53 pm
- Forum: Controls
- Topic: Pitch and Torque Cntrl (Region 3)
- Replies: 36
- Views: 11135
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 ...
- Wed Jun 12, 2019 12:53 am
- Forum: Controls
- Topic: nonlinear state-space model
- Replies: 12
- Views: 3946
Re: nonlinear state-space model
thanks.
- Tue Jun 11, 2019 11:12 am
- Forum: Controls
- Topic: nonlinear state-space model
- Replies: 12
- Views: 3946
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.
But I can not find them.
thanks.
- Tue Jun 11, 2019 8:12 am
- Forum: Controls
- Topic: nonlinear state-space model
- Replies: 12
- Views: 3946
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?
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?
- Tue Jun 11, 2019 5:00 am
- Forum: Controls
- Topic: nonlinear state-space model
- Replies: 12
- Views: 3946
Re: nonlinear state-space model
thanks
and So, my question is, a nonlinear relation between the pitch angle and the rotor speed is available?
and So, my question is, a nonlinear relation between the pitch angle and the rotor speed is available?
- Tue Jun 11, 2019 3:53 am
- Forum: Controls
- Topic: nonlinear state-space model
- Replies: 12
- Views: 3946
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.
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.
- Tue Jun 11, 2019 1:59 am
- Forum: Controls
- Topic: nonlinear state-space model
- Replies: 12
- Views: 3946
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...
- Fri May 03, 2019 9:22 am
- Forum: Controls
- Topic: Linearization of the full system
- Replies: 7
- Views: 4154
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...
- Fri Apr 26, 2019 12:54 am
- Forum: Controls
- Topic: nonlinear state-space model
- Replies: 12
- Views: 3946
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...