Stabilizer Model: PSSSB
AutoCorrection Properties
Following checks and corrections are applied during Validation and AutoCorrection.
- If 0 < Tw1 < Mult*TimeStep then Tw1 = Mult*TimeStep
- If 0 < Tw3 < Mult*TimeStep then Tw3 = Mult*TimeStep
- If Vstmax < Vstmin then swap the values. If Vstmax < 0 then Vstmax change sign to positive. If Vstmin > 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 |
| M | Ramp tracking filter |
| N | Ramp tracking filter |
| Tw1 | First washout on first remote bus, sec |
| Tw2 | Second washout on first remote bus, sec |
| Tw3 | First washout on second remote bus, sec |
| Tw4 | Second washout on second remote bus, sec |
| T6 | Time constant on signal 1, sec |
| T7 | Time constant on signal 2, sec |
| Ks2 | Gain on second remote bus |
| Ks3 | Gain on second remote bus |
| Ks4 | Gain on second remote bus |
| T8 | Lead of ramp tracking filter, sec |
| T9 | Lag of ramp tracking filter, sec |
| Ks1 | Stabilizer gain |
| T1 | Lead/lag time constant, sec |
| T2 | Lead/lag time constant, sec |
| T3 | Lead/lag time constant, sec |
| T4 | Lead/lag time constant, sec |
| Vstmax | Stabilizer output maximum limit, pu |
| Vstmin | Stabilizer output minimum limit, pu |
| Sw1 | Voltage boost signal transient stabilizer manual switch |
| Td1 | Voltage boost signal transient stabilizer lag, sec |
| Td2 | Voltage boost signal transient stabilizer washout time constant, sec |
| Vtl | Voltage boost signal transient stabilizer terminal voltage limit. |
| Vk | Voltage boost signal transient stabilizer boost signal magnitude, pu |
| Vcutoff | Voltage deviation level for stabilizer cutout, pu |