modelWSIEG1

WECC Modified IEEE Type 1 Speed-Governing Model [PSSE-MODELS]
Diagram of WSIEG1

Parameters

TypeNameDefaultDescription
RealK30.32Regulation gain [1/pu]
Types.TimeT_10.5Control time constant
Types.TimeT_21e-8Control time constant
Types.TimeT_30.1Control time constant
Types.TimeAgingU_o0.4Max. rate if valve opening
Types.TimeAgingU_c-0.4Max. rate if valve closing
Types.PerUnitP_MAX1.5Max. valve position
Types.PerUnitP_MIN0Min. valve position
Types.TimeT_40.25HP section time constant
Types.PerUnitK_10.307Fraction of power from high pressure turbine (upper branch)
Types.PerUnitK_20Fraction of power from high pressure turbine (lower branch)
Types.TimeT_510Reheat plus intermediate pressure turbine time constant
Types.PerUnitK_30Fraction of power from intermediate pressure turbine (upper branch)
Types.PerUnitK_40.23Fraction of power from intermediate pressure turbine (lower branch)
Types.TimeT_60.588Reheater plus intermediate pressure turbine time constant (second)
Types.PerUnitK_50.2315Fraction of power from low pressure turbine (first LP, upper branch)
Types.PerUnitK_60.2315Fraction of power from low pressure turbine (first LP, lower branch)
Types.TimeT_71e-8Low pressure turbine time constant
Types.PerUnitK_70Fraction of power from low pressure turbine (second LP, upper branch)
Types.PerUnitK_80Fraction of power from low pressure turbine (second LP, lower branch)
Types.PerUnitdb10.0006Speed deadband
Types.PerUniterr0Error deadband
Types.PerUnitdb20Gate valve deadband
Types.PerUnitGV10Gate valve position 1
Types.PerUnitGV20.25Gate valve position 2
Types.PerUnitGV30.5Gate valve position 3
Types.PerUnitGV40.75Gate valve position 4
Types.PerUnitGV52Gate valve position 5
Types.PerUnitPGV10Mechanical power 1
Types.PerUnitPGV20.25Mechanical power 2
Types.PerUnitPGV30.5Mechanical power 3
Types.PerUnitPGV40.75Mechanical power 4
Types.PerUnitPGV52Mechanical power 5
IntegerIblock0
IntegerHP_LP1Turbine Output Power Selector [1(HP) or 2(LP) or 3(HP+LP)]

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputSPEED_HPMachine speed deviation from nominal [pu]
Modelica.Blocks.Interfaces.RealOutputPMECH_HPTurbine mechanical power [pu]
Modelica.Blocks.Interfaces.RealOutputPMECH_LPTurbine mechanical power [pu]
Modelica.Blocks.Interfaces.RealInputPMECH0

Components

TypeNameDefaultDescription
OpenIPSL.NonElectrical.Continuous.LeadLagLeadLag
OpenIPSL.NonElectrical.Continuous.SimpleLagSteam
OpenIPSL.NonElectrical.Continuous.SimpleLagReheater1
OpenIPSL.NonElectrical.Continuous.SimpleLagReheater2
OpenIPSL.NonElectrical.Continuous.SimpleLagCrossover
Modelica.Blocks.Math.GainGain1_HP
Modelica.Blocks.Math.GainGain1_LP
Modelica.Blocks.Math.GainGain2_HP
Modelica.Blocks.Math.GainGain2_LP
Modelica.Blocks.Math.GainGain3_HP
Modelica.Blocks.Math.GainGain3_LP
Modelica.Blocks.Math.GainGain4_HP
Modelica.Blocks.Math.GainGain4_LP
Modelica.Blocks.Math.Add3add_ref
Modelica.Blocks.Math.GainGov_gain
Modelica.Blocks.Nonlinear.Limiterlimiter
Modelica.Blocks.Continuous.LimIntegratorGov_Integrator
Modelica.Blocks.Math.Addadd_12_HP
Modelica.Blocks.Math.Addadd12_LP
Modelica.Blocks.Math.Addadd123_LP
Modelica.Blocks.Math.Addadd_123_HP
Modelica.Blocks.Math.Addadd1234_LP
Modelica.Blocks.Math.Addadd1234_HP
NonElectrical.Nonlinear.Deadband1deadband1
Modelica.Blocks.Tables.CombiTable1DsLookup_GateValve_Pmech
Modelica.Blocks.Sources.ConstantPref
NonElectrical.Nonlinear.Deadband2deadband2

Revisions

Reference

WECC Modified IEEE Type 1 Speed-Governing Model (PSS/E Manual)

Last update

2024-10-05

Author

Giuseppe Laera, ALSETLab, RPI Rensselaer Polytechnic Institute

Contact

see UsersGuide.Contact