Machine Model: WT2G

 

Following checks and corrections are applied during Validation and AutoCorrection.

  • If Lp > 0.5*Ls is not possible then Lp = 0.5*Ls.
  • If Ll > 0.8*Lpp is not possible then Ll = 0.8*Lpp.
  • If 0 < Tpo < Mult*TimeStep then Tpo = 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

Model Equations and/or Block Diagrams

Parameters:

Ls Synchrounous reactance, (pu > 0)
Lp Transient reactance (pu, > 0)
Ll Stator leakage reactance (pu, > 0)
Ra Stator resistance, pu
Tpo Transient rotor time constant, sec
S1 Saturation factor at 1.0 pu flux
S12 Saturation factor at 1.2 pu flux
spdrot Initial electrical rotor speed, p.u. of system frequency
Accel Acceleration factor for initialization