Governor Model: TURCZT

Following checks and corrections are applied during Validation and AutoCorrection.

• KP and TI: K3 can't be 0 if TI = 0, if true then KP changed to 10.
• fDEAD must be greater than 0. If true, deadband will be ignored.
• SDEAD must be greater than 0. If true, deadband will be ignored.
• For Param TC, TI, TEHP, TR and TW then If 0.0 < Param < 0.5*Mult*TimeStep then Param = 0, ElseIf 0.5*Mult*TimeStep < Param < Mult*TimeStep then Param = Mult*TimeStep
• For Param KM and TV then If 0 < Param < Mult*TimeStep then Param = Mult*TimeStep
• If fMax< fMin then swap the values.
• If NTmax< NTmin then swap the values.
• If Gmax< Gmin then swap the values.
• If Vmax< Vmin 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 PI Integrator> NTmax, then NTmax = PI Integrator limits or if PI Integrator < NTmin, then NTmin = PI Integrator
• If Integrator> Gmax, then Gmax = Integrator limits or if PI Integrator < Gmin, then Gmin = Integrator