Rotor sensor

The rotor sensor can be added by toggling on the Sensor button in the  Rotor part shown in the following picture:

The Rotor sensor provides the following fields:

Field	Unit	Description
Power (aero)	W	aerodynamic power, i.e. the power exerted by the air on the blades
Torque (aero)	Nm	aerodynamic torque, i.e. the moment around the main shaft axis resulting from the aerodynamic forces on the blades
Thrust (aero)	N	total aerodynamic force on the rotor in the main shaft direction
RPM	rpm	revolutions per minute of the rotor, number of revolutions the turbine does in one minute. Also called Rotational speed or Rotational velocity
TSR	-	Tip speed ratio, ratio of the velocity of the tip of a blade over the wind speed magnitude at the hub
Representative demanded pitch angle	deg	Representative collective pitch angle demanded across the blades of the rotor. The pitch angle used is the demanded pitch angle for blade 1.
Demanded pitch angle, blade 1	deg	Pitch angle demanded by the controller for blade 1. Only relevant when individual pitch control (IPC) is active; otherwise the collective demanded pitch applies to all blades.
Demanded pitch angle, blade 2	deg	Pitch angle demanded by the controller for blade 2. Only relevant when individual pitch control (IPC) is active; otherwise the collective demanded pitch applies to all blades.
Demanded pitch angle, blade 3	deg	Pitch angle demanded by the controller for blade 3. Only relevant when individual pitch control (IPC) is active; otherwise the collective demanded pitch applies to all blades.
Power coef. (CP)	%	Ratio of the aerodynamic power over the total available power in the wind (see CP - Power coefficient)
Thrust coef. (CT)	%	Ratio of the thrust force over the dynamic force in the wind
Torque coef. (CQ)	%	Ratio of the aerodynamic torque over the reference torque from the wind
Tip speed	m.s-1	velocity of the tip of the blades. Calculated based on the RPM and the blade length
Azimuth angle	deg	angular position of the rotor. An azimuth angle of 0 means that the blade 0 is pointing upwards
Rotation per timestep	deg	degrees the rotor has rotated in one time step. The time step can be changed in the  Analysis parameters
Wind speed at hub, magnitude	m.s-1	magnitude of the wind speed at the hub location
Wind speed at hub	m.s-1	components of the wind speed at the hub location. The components are given in the global coordinate system (see Coordinate systems)
Turbulence at hub (local)	m.s-1	Turbulent wind vector at the hub, expressed in the local rotor frame
Wind angle at hub	deg	angle between the horizontal component of the wind and the horizontal projection of rotor plane normal at the hub
Yaw angle relative to forward	deg	angle between the RNA and the tower top. This is typically the angle that the yaw actuator has yawed. If there is no yaw controller, this angle will stay 0 (even though the RNA might have rotated around the vertical axis, as can be the case if floater with a wind turbine on top rotates)
Yaw angle to reference direction	deg	Angle between the RNA and the reference direction. This is equivalent to the misalignment between the rotor axis and the chosen reference wind direction. This is especially relevant in the context of floating wind turbines, where the rotor plane can have turned with respect to its initial position if the floater moves. You can then have a change in the orientation of the rotor plane even if there is no yaw controller.
Yaw error	deg	angle between the horizontal projection of the rotor plane normal and the incoming wind at hub height. This is the error used by the controller to yaw the RNA
Torque about yaw axis	Nm	torque about the yaw axis due to aerodynamic forces on the rotor (thus not including gyroscopic effects)