OpenIPSL.Electrical.Controls.PSSE.TG

Turbine governor models from PSSE

Information

Extends from Modelica.Icons.Package (Icon for standard packages).

Package Content

Name Description
OpenIPSL.Electrical.Controls.PSSE.TG.ConstantPower ConstantPower Constant Power (feed through)
OpenIPSL.Electrical.Controls.PSSE.TG.GAST GAST GAST - Gas Turbine-Governor
OpenIPSL.Electrical.Controls.PSSE.TG.GGOV1 GGOV1 GGOV1 - Variation of GE General Governor/Turbine Model [IEEE2013]
OpenIPSL.Electrical.Controls.PSSE.TG.GGOV1DU GGOV1DU GGOV1DU - Variation of GE General Governor/Turbine Model [IEEE2013]
OpenIPSL.Electrical.Controls.PSSE.TG.HYGOV HYGOV HYGOV - Hydro Turbine-Governor model
OpenIPSL.Electrical.Controls.PSSE.TG.IEEEG1 IEEEG1 IEEEG1 - 1981 IEEE Type 1 Turbine-Governor Model
OpenIPSL.Electrical.Controls.PSSE.TG.IEESGO IEESGO IEESGO - IEEE Standard Model for Turbine-Governor
OpenIPSL.Electrical.Controls.PSSE.TG.TGOV1 TGOV1 TGOV1 - Steam Turbine-Governor
OpenIPSL.Electrical.Controls.PSSE.TG.BaseClasses BaseClasses Base classes for turbine governor models from PSSE

OpenIPSL.Electrical.Controls.PSSE.TG.ConstantPower OpenIPSL.Electrical.Controls.PSSE.TG.ConstantPower

Constant Power (feed through)

Information

Extends from BaseClasses.BaseGovernor (Base turbine governor model).

Connectors

NameDescription
SPEED 
PMECH0 
PMECH 

OpenIPSL.Electrical.Controls.PSSE.TG.GAST OpenIPSL.Electrical.Controls.PSSE.TG.GAST

GAST - Gas Turbine-Governor

Information

Gas Turbine-Governor Model.

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.BaseGovernor (Base turbine governor model).

Parameters

NameDescription
RSpeed droop gain [1]
T_1Valve response time constant [s]
T_2Turbine response time constant [s]
T_3Load limit response time constant [s]
ATAmbient temperature load limit [1]
K_TLoad-limited feedback path adjustment gain [1]
V_MAXOperational control high limit on fuel valve opening [1]
V_MINLow output control limit on fuel valve opening [1]
D_turbTurbine damping [1]

Connectors

NameDescription
SPEED 
PMECH0 
PMECH 

OpenIPSL.Electrical.Controls.PSSE.TG.GGOV1 OpenIPSL.Electrical.Controls.PSSE.TG.GGOV1

GGOV1 - Variation of GE General Governor/Turbine Model [IEEE2013]

Information

The following documentation is adapted from [PSSE-Models], chapter 7.12:

This is a general purpose Governor/Turbine model that can be used in dynamic studies. The model can be used to represent many different models such as gas turbines, aeroderivative turbines and diesel engines. This model represents the usual PSSE implementation of the GGOV1 and a fairly complete review of this model can be found in [IEEE2013].

[...]

This model is incredibly versatile and can be used to represent different turbine models with different control modes. The Governor-Turbine frequency control, for example, can have different feedback signals, such as electric power, turbine output, valve stroke or even an isochronous operation. Isochronous operations are used when the machine operates in an isolated system. Note that, in this case, the permanent droop parameter R should be set to zero. In addition to that, the parameters can be set so a particular control loop is used. This model allows the representation of a frequency control system, a temperature control system and an acceleration limiter control system.

[...]

In order to represent a diesel generator using this model, one should be careful with setting some parameters. For example, a diesel generator needs to have flag set to 1. This is because the diesel generator have teir fluid flow proportional on the speed. In addition to that, Teng, which represents the time delay from the engine, should be set to a number greater than 0. Finally, the variable Dm should also be set to a number greater than 0. This is because in diesel engines, the maximum power output decreases as speed increases.

Extends from Icons.VerifiedModel (Icon for classes that were verified).

Parameters

NameDescription
RselectFeedback signal for governor droop
FlagSwitch for fuel source characteristic
delayDelay type inside the turbine model (use Pade Delay for linearisation)
RPermanent droop [1]
T_pelecElectrical power transducer time constant [s]
maxerrMaximum value for speed error signal [1]
minerrMinimum value for speed error signal [1]
KpgovGovernor proportional gain [1]
KigovGovernor integral gain [1/s]
KdgovGovernor derivative gain [s]
TdgovGovernor derivative controller time constant [s]
VmaxMaximum valve position limit [1]
VminMinimum valve position limit [1]
TactActuator time constant [s]
KturbTurbine gain [1]
WfnlNo load fuel flow [1]
TbTurbine lag time constant [s]
TcTurbine lead time constant [s]
TengTransport lag time constant for diesel engine [s]
TfloadLoad Limiter time constant [s]
KploadLoad limiter proportional gain for PI controller [1]
KiloadLoad limiter integral gain for PI controller [1/s]
LdrefLoad limiter reference value [1]
DmMechanical damping coefficient [1]
RopenMaximum valve opening rate [1/s]
RcloseMaximum valve closing rate [1/s]
KimwPower controller (reset) gain [1/s]
AsetAcceleration limiter setpoint [1/s]
KaAcceleration limiter gain [1]
TaAcceleration limiter time constant [s]
TrateTurbine rating [W]
dbSpeed governor deadband [1]
TsaTemperature detection lead time constant [s]
TsbTemperature detection lag time constant [s]
RupMaximum rate of load limit increase [1/s]
RdownMaximum rate of load limit decrease [1/s]
DELTTime step used in simulation [s]

Connectors

NameDescription
SPEEDMachine speed deviation from nominal (pu)
PELECMachine electrical power (pu)
PMECHTurbine mechanical power (pu)

OpenIPSL.Electrical.Controls.PSSE.TG.GGOV1DU OpenIPSL.Electrical.Controls.PSSE.TG.GGOV1DU

GGOV1DU - Variation of GE General Governor/Turbine Model [IEEE2013]

Information

The following documentation is adapted from [PSSE-Models], chapter 7.13:

This is a general purpose Governor/Turbine model that can be used in dynamic studies. This model is a slightly different model than the GGOV1. The model can be used to represent many different models such as gas turbines, aeroderivative turbines and diesel engines. This model is a variation of the GGOV1 model and a fairly complete review can be found in [IEEE2013].

[...]

This model is incredibly versatile and can be used to represent different turbine models with different control modes. The Governor-Turbine frequency control, for example, can have different feedback signals, such as electric power, turbine output, valve stroke or even an isochronous operation. Isochronous operations are used when the machine operates in an isolated system. Note that, in this case, the permanent droop parameter R should be set to zero. In addition to that, the parameters can be set so a particular control loop is used. This model allows the representation of a frequency control system, a temperature control system and an acceleration limiter control system.

[...]

In order to represent a diesel generator using this model, one should be careful with setting some parameters. For example, a diesel generator needs to have flag set to 1. This is because the diesel generator have teir fluid flow proportional on the speed. In addition to that, Teng, which represents the time delay from the engine, should be set to a number greater than 0. Finally, the variable Dm should also be set to a number greater than 0. This is because in diesel engines, the maximum power output decreases as speed increases.

Extends from Icons.VerifiedModel (Icon for classes that were verified).

Parameters

NameDescription
RselectFeedback signal for governor droop
FlagSwitch for fuel source characteristic
delayDelay type inside the turbine model (use Pade Delay for linearisation)
RPermanent droop [1]
T_pelecElectrical power transducer time constant [s]
maxerrMaximum value for speed error signal [1]
minerrMinimum value for speed error signal [1]
KpgovGovernor proportional gain [1]
KigovGovernor integral gain [1/s]
KdgovGovernor derivative gain [s]
TdgovGovernor derivative controller time constant [s]
VmaxMaximum valve position limit [1]
VminMinimum valve position limit [1]
TactActuator time constant [s]
KturbTurbine gain [1]
WfnlNo load fuel flow [1]
TbTurbine lag time constant [s]
TcTurbine lead time constant [s]
TengTransport lag time constant for diesel engine [s]
TfloadLoad Limiter time constant [s]
KploadLoad limiter proportional gain for PI controller [1]
KiloadLoad limiter integral gain for PI controller [1/s]
LdrefLoad limiter reference value [1]
DmMechanical damping coefficient [1]
RopenMaximum valve opening rate [1/s]
RcloseMaximum valve closing rate [1/s]
KimwPower controller (reset) gain [1/s]
AsetAcceleration limiter setpoint [1/s]
KaAcceleration limiter gain [1]
TaAcceleration limiter time constant [s]
TrateTurbine rating [W]
dbSpeed governor deadband [1]
TsaTemperature detection lead time constant [s]
TsbTemperature detection lag time constant [s]
RupMaximum rate of load limit increase [1/s]
RdownMaximum rate of load limit decrease [1/s]
DELTTime step used in simulation [s]

Connectors

NameDescription
SPEEDMachine speed deviation from nominal (pu)
PELECMachine electrical power (pu)
PMECHTurbine mechanical power (pu)

OpenIPSL.Electrical.Controls.PSSE.TG.HYGOV OpenIPSL.Electrical.Controls.PSSE.TG.HYGOV

HYGOV - Hydro Turbine-Governor model

Information

This is a hydro turbine-governor model.

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.BaseGovernor (Base turbine governor model).

Parameters

NameDescription
RPermanent droop gain [1]
rTemporary droop gain [1]
T_rGovernor time constant [s]
T_fFilter time constant [s]
T_gServo time constant [s]
VELMGate open/close velocity limit [1/s]
G_MAXMaximum gate limit [1]
G_MINMinimum gate limit [1]
T_wWater time constant [s]
A_tTurbine gain [1]
D_turbTurbine damping [1]
q_NLWater flow at no load [1]

Connectors

NameDescription
SPEED 
PMECH0 
PMECH 

OpenIPSL.Electrical.Controls.PSSE.TG.IEEEG1 OpenIPSL.Electrical.Controls.PSSE.TG.IEEEG1

IEEEG1 - 1981 IEEE Type 1 Turbine-Governor Model

Information

Governor IEEEG1, IEEG1_GE and IEEEG1D IEEE Type 1 Speed-Governor Model.

Extends from Icons.VerifiedModel (Icon for classes that were verified).

Parameters

NameDescription
P0Power reference of the governor [1]
KRegulation gain [1/pu]
T_1Control time constant [s]
T_2Control time constant [s]
T_3Control time constant [s]
U_oMax. rate if valve opening [1/s]
U_cMax. rate if valve closing [1/s]
P_MAXMax. valve position [1]
P_MINMin. valve position [1]
T_4HP section time constant [s]
K_1Fraction of power from high pressure turbine (upper branch) [1]
K_2Fraction of power from high pressure turbine (lower branch) [1]
T_5Reheat plus intermediate pressure turbine time constant [s]
K_3Fraction of power from intermediate pressure turbine (upper branch) [1]
K_4Fraction of power from intermediate pressure turbine (lower branch) [1]
T_6Reheater plus intermediate pressure turbine time constant (second) [s]
K_5Fraction of power from low pressure turbine (first LP, upper branch) [1]
K_6Fraction of power from low pressure turbine (first LP, lower branch) [1]
T_7Low pressure turbine time constant [s]
K_7Fraction of power from low pressure turbine (second LP, upper branch) [1]
K_8Fraction of power from low pressure turbine (second LP, lower branch) [1]

Connectors

NameDescription
SPEED_HPMachine speed deviation from nominal [pu]
PMECH_HPTurbine mechanical power [pu]
PMECH_LPTurbine mechanical power [pu]

OpenIPSL.Electrical.Controls.PSSE.TG.IEESGO OpenIPSL.Electrical.Controls.PSSE.TG.IEESGO

IEESGO - IEEE Standard Model for Turbine-Governor

Information

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.BaseGovernor (Base turbine governor model).

Parameters

NameDescription
T_1Controller lag [s]
T_2Controller lead compensation [s]
T_3Governor lag [s]
T_4Delay due to steam inlet volumes associated with steam chest and inlet piping [s]
T_5Reheater delay including hot and cold leads [s]
T_6Delay due to IP-LP turbine, crossover pipes, and LP end hoods [s]
K_1Regulation gain [1/pu]
K_2Intermediate pressure turbine fraction [1]
K_3Low pressure turbine fraction [1]
P_MAXUpper power limit [1]
P_MINLower power limit [1]

Connectors

NameDescription
SPEED 
PMECH0 
PMECH 

OpenIPSL.Electrical.Controls.PSSE.TG.TGOV1 OpenIPSL.Electrical.Controls.PSSE.TG.TGOV1

TGOV1 - Steam Turbine-Governor

Information

Steam Turbine-Governor Model TGOV1.

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.BaseGovernor (Base turbine governor model).

Parameters

NameDescription
RInverse of governor gain (the actual gain is 1/R) [1]
D_tTurbine damping factor (on Machine Base) [1]
T_1Regulator time constant. It must be greater than 0 [s]
T_2High-pressure reheater time constant [s]
T_3Reheater time constant. It must be greater than 0 [s]
V_MAXMaximum valve position (on Machine Base) [1]
V_MINMinimum valve position (on Machine Base) [1]

Connectors

NameDescription
SPEED 
PMECH0 
PMECH 
Automatically generated Mon Oct 10 14:35:55 2022.