Governor Model: H6B and H6BD

Following checks and corrections are applied during Validation and AutoCorrection.

• Trate: Verify that associated H6BD family model not found. This must be fixed.
• If Ki = 0 then Ki = Mult*TimeStep
• If 0.0 < Td < 0.5*Mult*TimeStep then Td = 0, ElseIf 0.5*Mult*TimeStep < Td < Mult*TimeStep then Td = Mult*TimeStep
• If 0.0 < Tpe < 0.5*Mult*TimeStep then Tpe = 0, ElseIf 0.5*Mult*TimeStep < Tpe < Mult*TimeStep then Tpe = Mult*TimeStep
• If 0.0 < Tg < 0.5*Mult*TimeStep then Tg = 0, ElseIf 0.5*Mult*TimeStep < Tg < Mult*TimeStep then Tg = Mult*TimeStep
• If 0.0 < Tbf < 0.5*Mult*TimeStep then Tbf = 0, ElseIf 0.5*Mult*TimeStep < Tbf < Mult*TimeStep then Tbf = Mult*TimeStep
• If 0.0 < Tbs < 0.5*Mult*TimeStep then Tbs = 0, ElseIf 0.5*Mult*TimeStep < Tbs < Mult*TimeStep then Tbs = Mult*TimeStep
• If 0.0 < Tsp < 0.5*Mult*TimeStep then Tsp = 0, ElseIf 0.5*Mult*TimeStep < Tsp < Mult*TimeStep then Tsp = Mult*TimeStep
• If 0.0 < Tff < 0.5*Mult*TimeStep then Tff = 0, ElseIf 0.5*Mult*TimeStep < Tff < Mult*TimeStep then Tff = Mult*TimeStep
• If 0.0 < Tpw < 0.5*Mult*TimeStep then Tpw = 0, ElseIf 0.5*Mult*TimeStep < Tpw < Mult*TimeStep then Tpw = Mult*TimeStep
• If 0.0 < Tw < Mult*TimeStep then Tw = 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

Following treatment is handled during the transient numerical simulation

• If Gate > Gmax, then Gmax = Gate or if Gate < Gmin, then Gmin = Gate