Exciter Model: IEEET3

Following checks and corrections are applied during Validation and AutoCorrection.
- If 0.0 < Tr < 0.5*Mult*TimeStep then Tr = 0, ElseIf 0.5*Mult*TimeStep < Tr < Mult*TimeStep then Tr = Mult*TimeStep
- If 0.0 < Ta < 0.5*Mult*TimeStep then Ta = 0, ElseIf 0.5*Mult*TimeStep < Ta < Mult*TimeStep then Ta = Mult*TimeStep
- If 0 < Te < Mult*TimeStep then Te = Mult*TimeStep
- If 0 < Tf < Mult*TimeStep then Tf = Mult*TimeStep
- If Kp < 1 then Kp = Mult*TimeStep
- If Vrmax < Vrmin then swap the values
- If Vb <= 0 then Vb = 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
Following treatment is handled during the transient numerical simulation
- If Vr > Vrmax, then Vrmax = Vr or if Vr < Vrmin, then Vrmin = Vr
- If Vbmax > Vb, then Vbmax = Vb
Model Equations and/or Block Diagrams
Parameters:
Tr | Transducer time constant, sec |
Ka | Voltage regulator gain |
Ta | Voltage regulator time constant, sec |
Vrmax | Maximum control element output, pu |
Vrmin | Minimum control element output, pu |
Te | Exciter field time constant, sec |
Kf | Rate feedback gain, pu |
Tf | Rate feedback constant, sec |
Kp | Potential source gain, pu |
Ki | Current source gain, pu |
VbMax | Maximum excitation voltage, pu |
Ke | Exciter field resistance line slope margin, pu |