1. Wind turbine internal yaw control input file

The internal wind turbine yaw controller is described in Internal nacelle yaw control. Parameters for the yaw controller input file is defined below.

1.1. Parameters for internal yaw control input file

1.1.1. Yaw controller configuration input version number

yawconfinput_ver

  • yawconfinput_ver: integer > 0: Yaw controller configuration input version number. Current version is 1.

1.1.2. Yaw controller time step

DT_yawcontrol

  • DT_yawcontrol: real > 0: Yaw controller sample interval \(\mathrm {[T]}\)

1.1.3. Yaw set point

YawErrSetPoint

  • YawErrSetPoint: real [-180, 180]: Specified nacelle yaw misalignment \(\mathrm {[deg]}\)

1.1.4. Yaw rate

YawRate

  • YawRate: real > 0: Rotational velocity for yaw engine \(\mathrm {[deg/T]}\)

1.1.5. Yaw misalignment threshold

YawErrThresh

  • YawErrThresh: real > 0: Integral threshold for activation of yaw engine \(\mathrm {[deg^2T]}\)

1.1.6. Fast filter corner period for low pass filtering

T_LPfiltFast

  • T_LPfiltFast: real > 0: Fast filter corner period for input signal \(\mathrm {[T]}\)

1.1.7. Slow filter corner period for low pass filtering

T_LPfiltSlow

  • T_LPfiltSlow: real > 0: Slow filter corner period for output signal \(\mathrm {[T]}\)

1.2. Example input file for internal yaw control system

'yawconfinput_ver
1
'DT_yawcontrol         Yaw controller time step (s)
0.005
'YawErrSetPoint        Yaw set point (deg)
0.
'YawRate               Controller yaw rate, (deg)
0.5
'YawErrThresh          Yaw misalignment threshold, (deg^2 s)
1.0
'T_LPfiltFast          Fast filter corner period for low pass filtering (s)
1.0
'T_LPfiltSlow          Slow filter corner period for low pass filtering (s)
60.0

'