In the document titled ‘Definition of a 5-MW Reference Wind Turbine for Offshore System Development’, section 7.3 (Baseline Blade-Pitch Controller) develops a second order differential equation to calculate KP and KI for the controller.
Quote: “Aiming for the response characteristics given by ωφn = 0.6 rad/s and ζφ = 0.6 to 0.7…”
I’m working on the Windpact 1.5MW turbine. It’d help me if I know the logic behind taking these values.
I understand that ζφ = 0.7 is commonly considered an ideal response. What about choosing ωφn = 0.6 rad/s? Is this a system property of the 5MW turbine? Or is it true for large wind turbines in general?