Governor Model: WSHYGP
AutoCorrection Properties
Following checks and corrections are applied during Validation and AutoCorrection.
- If 0.0 < Bturb < Mult*TimeStep then Bturb = Mult*TimeStep
- 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 Gate > Pmax , then Pmax = Gate or if Gate < Pmin , then Pmin = Gate
Model Equations and/or Block Diagrams
Parameters:
| Trate | Turbine rating, MW |
| db1pu | Intentional deadband width, pu |
| Err | Intentional db hysteresis, pu |
| Td | Input filter time constant, sec |
| Ki | Integral gain, pu |
| Tf | Filter time constant, sec |
| Kd | Derivative gain, pu |
| Kp | Proportional gain, pu |
| R | Permanent droop, pu |
| Tt | Power feedback time constant, sec |
| Kg | Gate servo gain, pu |
| Tp | Lead time constant, sec |
| Velopen | Maximum gate opening velocity, pu/sec |
| Velclose | Maximum gate closing velocity, pu/sec |
| Pmax | Maximum gate opening, pu of mwcap |
| Pmin | Minimum gate opening, pu of mwcap |
| db2pu | Unintentional deadband, pu |
| Gv1 | Nonlinear gain point 1, pu gv |
| Pgv1 | Nonlinear gain point 1, pu power |
| Gv2 | Nonlinear gain point 2, pu gv |
| Pgv2 | Nonlinear gain point 2, pu power |
| Gv3 | Nonlinear gain point 3, pu gv |
| Pgv3 | Nonlinear gain point 3, pu power |
| Gv4 | Nonlinear gain point 4, pu gv |
| Pgv4 | Nonlinear gain point 4, pu power |
| Gv5 | Nonlinear gain point 5, pu gv |
| Pgv5 | Nonlinear gain point 5, pu power |
| Aturb | Turbine numerator multiplier |
| Bturb | Turbine denominator multiplier |
| Tturb | Turbine time constant, sec |