Stabilizer Model: IEE2ST
Following checks and corrections are applied during Validation and AutoCorrection.
- If 0 < T4 < Mult*TimeStep then T4 = Mult*TimeStep
- If 0.0 < T1 < 0.5*Mult*TimeStep then T1 = 0, ElseIf 0.5*Mult*TimeStep < T1 < Mult*TimeStep then T1 = Mult*TimeStep
- If 0.0 < T2 < Mult*TimeStep then T2 = , else T2 = Mult*TimeStep
- If 0.0 < T6 < 0.125*Mult*TimeStep then T6 = 0.0
ElseIf 0.125*Mult*TimeStep < T6 < 0.25*Mult*TimeStep then T6 = 0.25*Mult*TimeStep - If 0.0 < T8 < 0.125*Mult*TimeStep then T8 = 0.0
ElseIf 0.125*Mult*TimeStep T8 Tr < 0.25*Mult*TimeStep then T8 = 0.25*Mult*TimeStep - If 0.0 < T10 < 0.125*Mult*TimeStep then T10 = 0.0
ElseIf 0.125*Mult*TimeStep < T10 < 0.25*Mult*TimeStep then T10 = 0.25*Mult*TimeStep - If Vcl < Vcu then swap the values
- If Lsmax < Lsmin then swap the values. If Lsmax < 0 then Lsmax change sign to positive. If Lsmin > 0 then change sign to negative.
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:
| Ics1 | First stabilizer input code |
| Ics2 | Second stabilizer input code |
| K1 | Gain 1 |
| K2 | Gain 2 |
| T1 | Lead/lag time constant, sec |
| T2 | Lead/lag time constant, sec |
| T3 | Lead/lag time constant, sec |
| T4 | Lead/lag time constant, sec |
| T5 | Lead/lag time constant, sec |
| T6 | Lead/lag time constant, sec |
| T7 | Lead/lag time constant, sec |
| T8 | Lead/lag time constant, sec |
| T9 | Lead/lag time constant, sec |
| T10 | Lead/lag time constant, sec |
| Lsmax | Maximum stabilizer output, pu |
| Lsmin | Minimum stabilizer output, pu |
| Vcu | Stabilizer input cutoff threshold, pu |
| Vcl | Stabilizer input cutoff threshold, pu |