Governor Model: IEEEG3_PTI and IEEEG3D

Following checks and corrections are applied during Validation and AutoCorrection.

• If 0.0 < Tg < Mult*TimeStep then Tg = Mult*TimeStep
• If 0.0 < Tp < 0.25*Mult*TimeStep then Tp = 0.0
  ElseIf 0.25*Mult*TimeStep < Tp < 0.5*Mult*TimeStep then Tp = 0.5*Mult*TimeStep
• If 0.0 < Tr < Mult*TimeStep then Tr = Mult*TimeStep
• If 0.0 < Tw < Mult*TimeStep then Tw = Mult*TimeStep
• From A11 to A23:
  • If 0.0 < A < Mult*TimeStep then Tg = Mult*TimeStep
• If Uo < Uc then swap the values. If Uo < 0 then Uo change sign to positive. If Uc > 0 then change sign to negative.
• If Pmax < Pmin then swap the values.

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

Following treatment is handled during the transient numerical simulation

• If Pmech > Pmax , then Pmax = Pmech or if Pmech < Pmin , then Pmin = Pmech