Governor Model: Bradley

Following checks and corrections are applied during Validation and AutoCorrection.

• KPV_1: Alpha can not be 0.0. Error will be created.
• Alphad_1: Beta can not be 0.0. Error will be created.
• Alphan_2: Gamma can not be 0.0. Error will be created.
• To_2: Gamma can not be 0.0. Error will be created.
• Tc_2: Gamma can not be 0.0. Error will be created.
• Tdd_1:If Tdd_1*Alphad_1 < 2*TimeStep then Tdd_1 = 2*TimeStep.
• Tdn_1:If Tdn_1*Alphan_2 < 2*TimeStep then Tdd_1 = 2*TimeStep.
• Tdn_1:If Tdn_1*Alphan_2 < 2*TimeStep then Tdd_1 = 2*TimeStep.
• TPV_1:If TPV_1/KPV_1 < 2*TimeStep then Tdd_1 = 2*TimeStep.
• If 0.0 < Tf_1 < Mult*TimeStep then Tf_1 = Mult*TimeStep
• If 0.0 < Tpe_1< Mult*TimeStep then Tpe_1= 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