OpenIPSL.Electrical.Controls.PSSE.PSS

Power Systems Stabilizer

Information

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

Package Content

Name Description
OpenIPSL.Electrical.Controls.PSSE.PSS.DisabledPSS DisabledPSS Disabled PSS (constant output)
OpenIPSL.Electrical.Controls.PSSE.PSS.IEEEST IEEEST IEEEST - Power System Stabilizer [IEEE1981]
OpenIPSL.Electrical.Controls.PSSE.PSS.IEE2ST IEE2ST IEE2ST - IEEE Stabilizing Model With Dual-Input Signals (extension of IEEEST, [PSSE-AGV2])
OpenIPSL.Electrical.Controls.PSSE.PSS.PSS2A PSS2A PSS2A - Dual-Input Stabilizer Model [IEEE1992]
OpenIPSL.Electrical.Controls.PSSE.PSS.PSS2B PSS2B PSS2B - Dual-Input Stabilizer Model [IEEE2005]
OpenIPSL.Electrical.Controls.PSSE.PSS.STAB2A STAB2A STAB2A - Power Sensitive Stabilizing Unit (ASEA) [PSSE-MODELS]
OpenIPSL.Electrical.Controls.PSSE.PSS.STAB3 STAB3 STAB3 - Power Sensitive Stabilizer Model with Dual-Input Signals [PSSE-MODELS]
OpenIPSL.Electrical.Controls.PSSE.PSS.STABNI STABNI STABNI - Power Sensitive Stabilizer Model Type NI (NVE) [PSSE-MODELS]
OpenIPSL.Electrical.Controls.PSSE.PSS.STBSVC STBSVC STBSVC - WECC Supplementary Signal for Static var Compensator [PSSE-MODELS]
OpenIPSL.Electrical.Controls.PSSE.PSS.BaseClasses BaseClasses Base classes for Power System Stabilizers (PSSs) from PSSE

OpenIPSL.Electrical.Controls.PSSE.PSS.DisabledPSS OpenIPSL.Electrical.Controls.PSSE.PSS.DisabledPSS

Disabled PSS (constant output)

Information

Extends from BaseClasses.BasePSS (Base model for PSSs from PSSE).

Connectors

NameDescription
V_S2PSS input signal 2
V_S1PSS input signal 1
VOTHSGPSS output

OpenIPSL.Electrical.Controls.PSSE.PSS.IEEEST OpenIPSL.Electrical.Controls.PSSE.PSS.IEEEST

IEEEST - Power System Stabilizer [IEEE1981]

Parameters

NameDescription
A_1Power system stabilizer high frequency filter coefficient [s]
A_2Power system stabilizer high frequency filter coefficient
A_3Power system stabilizer high frequency filter coefficient [s]
A_4Power system stabilizer high frequency filter coefficient
A_5Power system stabilizer high frequency filter coefficient [s]
A_6Power system stabilizer high frequency filter coefficient
T_1PSS first numerator (lead) time constant [s]
T_2PSS first denominator (lag) time constant [s]
T_3PSS second numerator (lead) time constant [s]
T_4PSS second denominator (lag) time constant [s]
T_5Stabilizer washout numerator time constant [s]
T_6Stabilizer washout denominator time constant [s]
K_SStabilizer Gain [1]
L_SMAXMaximum output for stabilizer washout filter [1]
L_SMINMinimum output for stabilizer washout filter [1]
V_CUMaximum power system stabilizer output [1]
V_CLMinimum power system stabilizer output [1]

Connectors

NameDescription
VOTHSGPSS output signal
V_SPSS input signal
V_CTCompensated machine terminal voltage [pu]

OpenIPSL.Electrical.Controls.PSSE.PSS.IEE2ST OpenIPSL.Electrical.Controls.PSSE.PSS.IEE2ST

IEE2ST - IEEE Stabilizing Model With Dual-Input Signals (extension of IEEEST, [PSSE-AGV2])

Parameters

NameDescription
K_1First input filter gain [1]
K_2Second input filter gain [1]
T_1First input filter time constant [s]
T_2Second input filter time constant [s]
T_3Power system stabilizer washout numerator time constant. If T_3 equals 0, sT_3 will equal 1.0 [s]
T_4Power system stabilizer washout denominator time constant. It must be greater than 0 [s]
T_5First power system stabilizer numerator (lead) time constant [s]
T_6First power system stabilizer denominator (lag) time constant [s]
T_7Second power system stabilizer numerator (lead) time constant [s]
T_8Second power system stabilizer denominator (lag) time constant [s]
T_9Third power system stabilizer numerator (lead) time constant [s]
T_10Third power system stabilizer denominator (lag) time constant [s]
L_SMAXMaximum output for sequence of washout filters [1]
L_SMINMinimum output for sequence of washout filters [1]
V_CUMaximum power system stabilizer output [1]
V_CLMinimum power system stabilizer output [1]

Connectors

NameDescription
V_S1PSS input signal 1
V_S2PSS input signal 2
VOTHSGPSS output signal
VCTCompensated machine terminal voltage [pu]

OpenIPSL.Electrical.Controls.PSSE.PSS.PSS2A OpenIPSL.Electrical.Controls.PSSE.PSS.PSS2A

PSS2A - Dual-Input Stabilizer Model [IEEE1992]

Information

This model uses an implementation of the ramp tracking filter as described in [Laera2022], which can be found under OpenIPSL.NonElectrical.Continuous.RampTrackingFilter.

See [Laera2022] for the expected behavior of this model.

Extends from BaseClasses.BasePSS (Base model for PSSs from PSSE).

Parameters

NameDescription
T_w1Washout 1 time constant
T_w2Washout 2 time constant
T_6Lag 1 time constant
T_w3Washout 3 time constant
T_w4Washout 4 time constant
T_7Lag 2 time constant
K_S2Lag 2 gain
K_S3gain
T_8Ramp-tracking filter time constant
T_9Ramp-tracking filter time constant
K_S1PSS gain
T_1Leadlag1 time constant (data from IEEE std, not representative, need to be tuned following system parameters)
T_2Leadlag1 time constant
T_3Leadlag2 time constant
T_4Leadlag2 time constant
V_STMAXPSS output limiation
V_STMINPSS output limiation
MRamp tracking filter coefficient
NRamp tracking filter coefficient

Connectors

NameDescription
V_S2PSS input signal 2
V_S1PSS input signal 1
VOTHSGPSS output

OpenIPSL.Electrical.Controls.PSSE.PSS.PSS2B OpenIPSL.Electrical.Controls.PSSE.PSS.PSS2B

PSS2B - Dual-Input Stabilizer Model [IEEE2005]

Information

IEEE Dual-Input Stabilizer Model.

This model uses an implementation of the ramp tracking filter as described in [Laera2022], which can be found under OpenIPSL.NonElectrical.Continuous.RampTrackingFilter.

See [Laera2022] for the expected behavior of this model.

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.BasePSS (Base model for PSSs from PSSE).

Parameters

NameDescription
T_w1Washout time constant 1
T_w2Washout time constant 2
T_6Lag time constant 6
T_w3Washout time constant 3
T_w4Washout time constant 4
T_7Lag time constant 7
K_S2Lag gain 2, T_7/H
K_S3Lag gain 3
T_8Ramp-tracking filter time constant
T_9Ramp-tracking filter time constant
K_S1PSS gain
T_1Lead-lag time constant 1
T_2Lead-lag time constant 2
T_3Lead-lag time constant 3
T_4Lead-lag time constant 4
T_10Lead-lag time constant 10
T_11Lead-lag time constant 11
V_S1MAXPSS input 1 max. limit
V_S1MINPSS input 1 min. limit
V_S2MAXPSS input 2 max. limit
V_S2MINPSS input 2 min. limit
V_STMAXPSS output max. limit, 0.1 ~ 0.2
V_STMINPSS output min. limit, -0.05 ~ -0.1
MRamp tracking filter coefficient
NRamp tracking filter coefficient

Connectors

NameDescription
V_S2PSS input signal 2
V_S1PSS input signal 1
VOTHSGPSS output

OpenIPSL.Electrical.Controls.PSSE.PSS.STAB2A OpenIPSL.Electrical.Controls.PSSE.PSS.STAB2A

STAB2A - Power Sensitive Stabilizing Unit (ASEA) [PSSE-MODELS]

Parameters

NameDescription
K_2Input washout filter gain [1]
T_2Input washout filter time constant [s]
K_3Low-pass filter proportional gain [1]
T_3Low-pass filter time constant [s]
K_4Washout filter output proportional gain [1]
K_5Output low-pass filter proportional gain [1]
T_5Output low-pass filter time constant [s]
H_LIMLimit value for stabilizer output [1]

Connectors

NameDescription
PELECMachine electrical power [pu]
VOTHSGPSS output signal

OpenIPSL.Electrical.Controls.PSSE.PSS.STAB3 OpenIPSL.Electrical.Controls.PSSE.PSS.STAB3

STAB3 - Power Sensitive Stabilizer Model with Dual-Input Signals [PSSE-MODELS]

Parameters

NameDescription
T_tInput transducer time constant [s]
T_X1Low-pass filter time constant. Value must be greater than 0 [s]
T_X2Stabilizer washout denominator time constant. Value must be greater than 0 [s]
K_XStabilizer washout numerator time constant [s]
V_LIMLimit value for stabilizer output [1]

Connectors

NameDescription
PELECMachine electrical power [pu]
VOTHSGPSS output signal

OpenIPSL.Electrical.Controls.PSSE.PSS.STABNI OpenIPSL.Electrical.Controls.PSSE.PSS.STABNI

STABNI - Power Sensitive Stabilizer Model Type NI (NVE) [PSSE-MODELS]

Parameters

NameDescription
KInput low-pass filter gain. It must be equal to or greater than 0 [1]
T_1Stabilizer filter time constant. It must be greater than 0 [s]
T_2Input low-pass filter time constant. It must be equal to or greater than 0 [s]
T_0Stabilizer filter time constant. It must be greater than 0 [s]
LIMITLimit value for stabilizer output [1]

Connectors

NameDescription
PELEC 
VOTHSG 

OpenIPSL.Electrical.Controls.PSSE.PSS.STBSVC OpenIPSL.Electrical.Controls.PSSE.PSS.STBSVC

STBSVC - WECC Supplementary Signal for Static var Compensator [PSSE-MODELS]

Information

Extends from BaseClasses.BasePSS (Base model for PSSs from PSSE).

Parameters

NameDescription
K_S1First input low-pass filter gain. It must be greater than 0 [1]
T_S7First input low-pass filter time constant [s]
T_S8First input regulator numerator (lead) time constant [s]
T_S9First input regulator denominaor (lag) time constant. It must be greater than 0 [s]
T_S13Stabilizer washout numerator time constant. It must be greater than 0 [s]
T_S14Stabilizer washout denominator time constant. It must be greater than 0 [s]
K_S3Stabilizer washout proportional gain [1]
V_SCSStabilizer output limit value [1]
K_S2Second input low-pass filter gain [1]
T_S10Second input low-pass filter time constant [s]
T_S11Second input regulator numerator (lead) time constant [s]
T_S12Second input regulator denominaor (lag) time constant. It must be greater than 0 if K_S2 is different from 0 [s]

Connectors

NameDescription
V_S2PSS input signal 2
V_S1PSS input signal 1
VOTHSGPSS output
Automatically generated Thu Feb 26 06:56:08 2026.