Dear @Jason.Jonkman,
I am planning to linearize the NREL 5 MW offshore wind turbine mounted on spar and semisubmersible platforms. First, I want to start with simple cases, such as linearizing in Region 2 with only GenDOF = True.
I am planning to design a gain-scheduled controller, which requires linearizing the model at various wind speeds. Based on the OpenFAST documentation, my initial approach is to set CalcSteady=True and TrimCase=2. I also need to establish initial values for the rotor speed at each operating point. For that, I found at NREL 5-MW reference turbine - #4 by Jason.Jonkman a table with the reference values used in Figure 9-1 from the NREL 5 MW report.
However, I also found that due to changes over time in the AeroDyn module, the values shown in the aforementioned table differ slightly from those obtained with more recent versions of AeroDyn. This issue is discussed here.
So, is it possible to use the data from WindSpeedRelationships.txt (2.27 KB) to perform a linearization analysis, or is it not precise enough to create a controller based on it?
Thanks in advance.
Best regards,
Ignacio