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) |