Demanded pitch sensor


The Pitch sensor can be added by clicking on the sensor icon of the Pitch part, as shown in the picture below:



The Demanded pitch sensor is not available for  Fixed pitch.

The Pitch sensor provides the following fields:
Field Unit Description
Demanded collective pitch angle deg the pitch angle requested by the controller
Cumulative demanded collective pitch angle deg Cumulative (unwrapped) demanded collective pitch angle output by the controller, summed over the simulation
DLL response time s time elsapsed between Ashes calling for a value and the DLL returning the value (only available for Bladed DLL type)
Demanded collective pitch angle rate deg.s-1 the speed at which the demanded collective pitch angle is changed (i.e. the time derivative of the Demanded collective pitch angle output)
Set point rpm when the pitch controller is active, the PID controller will adjust the pitch so that the generator rotational speed is close to the set point (only available for PID scheme)
RPM error rpm the difference bewteen the current generator rotational speed and the  Set point (only available for PID scheme)
P term deg the pitch correction due to the proportional term of the PID controller (only available for PID scheme)
I term deg the pitch correction due to the integral term of the PID controller (only available for PID scheme)
D term deg the pitch correction due to the derivative term of the PID controller (only available for PID scheme)
Gain scheduling factor - correction factor applied to correct the PID terms for the current pitch angle. See  Jonkman et al. (2009o) for detailed info. (only available for PID scheme)