Simulink Model of ROSCO TSR Tracking Mode #3030
Description
Dear,
I am using OpenFAST ROSCO in Simulink, and I am trying to make the control similar to TSR tracking in ROSCO. for which I am using the given parameters from the given DISCON file. I am facing the issue in region 2 from 7 to 10 m/s wind speeds, where my torque and speed response is not the same as ROSCO.
In the Simulink control, I am getting the generator speed from the TSR formula, then it is compared with the generator speed (rotor speed to generator speed) from the wind turbine, which produces an error that passes through the PI control and results in torque. I have used a similar strategy as the Simulink model of ROSCO available online.
For ROSCO, In DISCON file, I am using one second low pass filter option (WE_Mode=0), and so as I have provided in my model as a transfer function (1/(1+s) that is a low pass filter for wind speed, I have also tried with low pass filter with corner frequency 0.20944 as mentiond in Discon file for F_WECornerFreq but results remain almost same.
Can you please guide me if you are doing something in region 2 that I am missing, or in any way, if you can guide me to improve the control?
Below, I have attached the discon file, wind profile, and generator speed and generator torque response for my control (red) vs ROSCO (blue).
Best regards,
Haseeb
