Governor Model: WTGT_B

 

Following checks and corrections are applied during Validation and AutoCorrection.

  • KShaft: If 1/(KShaft/(2*Pi*NominalFrequency) * ( (Ht + Hg) * 2*Pi * 60) / ( 2*sqr(2*Pi) * Ht*Hg ))< TwoMassMassFrequencyMultiplier*TimeStep. We will treat as a one-mass model instead with H = (Ht + Hg).

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:

Ht Turbine inertia, MW-sec/MVA
Hg Generator inertia, MW-sec/MVA
DShaft Shaft damping coefficient p.u.
KShaft Spring constant, p.u.
MWCap Model MVA Base, If <= 0 then use base of machine model
W0 Initial speed, pu
Tp Time constant for electrical to mechanical power, seconds
Damp Machine damping coefficient, pu Power/pu speed