Pref Controller Model: WTGTRQ_A and WTTQA1

In PTI: WTTQA1 is the same as WTGTRQ_A model.

Following checks and corrections are applied during Validation and AutoCorrection.

  • If 0.0 < Tp < 0.125*Mult*TimeStep then Tp = 0.0
    ElseIf 0.125*Mult*TimeStep < Tp < 0.25*Mult*TimeStep then Tp = 0.25*Mult*TimeStep
  • If 0.0 < Twref < 0.125*Mult*TimeStep then Twref = 0.0
    ElseIf 0.125*Mult*TimeStep < Twref < 0.25*Mult*TimeStep then Twref = 0.25*Mult*TimeStep

Mult represents the user-specified value Minimum time constant size as multiple of time step option on the Validation page of the Transient Stability Dialog

TimeStep represents the integration time step being used as described on TimeStep

Model Equations and/or Block Diagrams

Parameters for WTGTRQ_A:

Flag 0=Torque Control; 1=Speed control; 2=Alternative with Pref0 feeding to Temax value
Kip Integral Gain
Kpp Proportional Gain
Tp Power measurement lag time constant
Twref Speed measurement time constant
Temax Maximum torque
Temin Minimum torque
P1 Power Point 1 for mapping of Pelec to speed function
Speed1 Speed Point 1 for mapping of Pelec to speed function
P2 Power Point 2 for mapping of Pelec to speed function
Speed2 Speed Point 2 for mapping of Pelec to speed function
P3 Power Point 3 for mapping of Pelec to speed function
Speed3 Speed Point 3 for mapping of Pelec to speed function
P4 Power Point 4 for mapping of Pelec to speed function
Speed4 Speed Point 4 for mapping of Pelec to speed function
MVABase MVA Base for model

 

Parameters for WTTQA1:

Flag 0=Torque Control; 1=Speed control; 2=Alternative with Pref0 feeding to Temax value
Kpp Proportional Gain
Kip Integral Gain
Tp Power measurement lag time constant
Twref Speed measurement time constant
Temax Maximum torque
Temin Minimum torque
P1 Power Point 1 for mapping of Pelec to speed function
Speed1 Speed Point 1 for mapping of Pelec to speed function
P2 Power Point 2 for mapping of Pelec to speed function
Speed2 Speed Point 2 for mapping of Pelec to speed function
P3 Power Point 3 for mapping of Pelec to speed function
Speed3 Speed Point 3 for mapping of Pelec to speed function
P4 Power Point 4 for mapping of Pelec to speed function
Speed4 Speed Point 4 for mapping of Pelec to speed function
MVABase MVA Base for model