OpenIPSL.Electrical.Machines.PSSE

Machine models from PSSE

Information

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

Package Content

Name	Description
Plant	Framework for an electrical plant including controllers
CIM5	PSSE CIM5 three-phase induction motor model
CIM6	PSSE CIM6 three-phase induction motor model
GENCLS	Classic generator model that can also represent an infinite bus
GENROE	ROUND ROTOR GENERATOR MODEL (EXPONENTIAL SATURATION)
GENROU	ROUND ROTOR GENERATOR MODEL (QUADRATIC SATURATION)
GENSAE	SALIENT POLE GENERATOR MODEL (EXPONENTIAL SATURATION)
GENSAL	SALIENT POLE GENERATOR MODEL (QUADRATIC SATURATION ON D-AXIS)
GENTPJ	WECC Type J GENERATOR: ROUND ROTOR WITH SATURATION ON BOTH AXES.
BaseClasses	Base classes for base machines from PSSE

OpenIPSL.Electrical.Machines.PSSE.Plant

Framework for an electrical plant including controllers

Information

This model is meant as a simple framework to create a electric power plant that consists of:

• Generator
• Excitation System
• Turbine Governor
• Power System Stabiliser

The type of each can be selected via a drop down list where also a deactivation is provided (normally via feed through).

Extends from Interfaces.Generator (Interface for a generator which provides the PwPin).

Parameters

Connectors

OpenIPSL.Electrical.Machines.PSSE.CIM5

PSSE CIM5 three-phase induction motor model

Information

The CIM5 induction motor model represents an induction machine that can be either model a single or double cage motor. The model can represent two distinct impedance circuits depending on the selected type.

The load torque equation for the CIM5 motor model is defines as:

TL = T(1+w)^D

The modelling of such devices is based, mainly, on the following references:

• Siemens: "PSS®E Model Library" [PSSE-MODELS].

• PowerWorld: Load Characteristic Models [PSSEMotor].

Extends from OpenIPSL.Electrical.Machines.PSSE.BaseClasses.baseMotor (Base model for the PSSE three-phase induction motor models).

Parameters

Connectors

OpenIPSL.Electrical.Machines.PSSE.CIM6

PSSE CIM6 three-phase induction motor model

Information

The CIM6 induction motor model represents an induction machine that can be either model a single or double cage motor. The model can represent two distinct impedance circuits depending on the selected type.

The load torque equation for the CIM6 motor model is defines as:

TL = T(Aw^2 + B*w + C0 + Dw^E)

The modelling of such devices is based, mainly, on the following references:

• Siemens: "PSS®E Model Library" [PSSE-MODELS].

• PowerWorld: Load Characteristic Models [PSSEMotor].

Extends from OpenIPSL.Electrical.Machines.PSSE.BaseClasses.baseMotor (Base model for the PSSE three-phase induction motor models).

Parameters

Connectors

OpenIPSL.Electrical.Machines.PSSE.GENCLS

Classic generator model that can also represent an infinite bus

Information

Synchronous machine represented by 'classical' modeling (see also [PSSE-AGV2], chapter 15).

Parametrization

This model changes its behavior depending on the value of the parameter H:

1. H=0: The model behaves like an infinite bus where the voltage and frequency, specified by v_0 and fn, are kept constant. P and Q are then calculated accordingly (i.e., the initial values P_0 and Q_0 have no influence on the behavior of the model).
2. H>0: "Classical Generator" model with physically-meaningful parameters, e.g., H=5 in a 100 MVA base. The parameters P_0 and Q_0 are used to specify the fixed active and reactive power injected or absorbed by the model. The parameters v_0 and fn can be used to specify the initial voltage and frequency.
3. H>>0: By making H very large, e.g., H=1e6 in a 100 MVA base, the speed of the machine will not undergo any changes, and consequently will set the frequency f at the bus to a fixed value (i.e., fn). The parameters P_0, Q_0, v_0 and fn have the same function as in case 2.

Applications

1. H=0: Infinite bus
2. H>0: Can be used to model a generation facility when only limited information is available, this is the simplest model possible to represent a synchronous machine's electro-mechanical dynamics.
3. H>>0: Can be used to model the connection to a "stiff grid".

See also [PSSE-AGV2], chapter 15.

Extends from Icons.VerifiedModel (Icon for classes that were verified), OpenIPSL.Electrical.Essentials.pfComponent (Partial model containing all the parameters for entering power flow data).

Parameters

Connectors

OpenIPSL.Electrical.Machines.PSSE.GENROE

ROUND ROTOR GENERATOR MODEL (EXPONENTIAL SATURATION)

Information

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.baseMachine (Base machine for PSSE models).

Parameters

Connectors

OpenIPSL.Electrical.Machines.PSSE.GENROU

ROUND ROTOR GENERATOR MODEL (QUADRATIC SATURATION)

Information

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.baseMachine (Base machine for PSSE models).

Parameters

Connectors

OpenIPSL.Electrical.Machines.PSSE.GENSAE

SALIENT POLE GENERATOR MODEL (EXPONENTIAL SATURATION)

Information

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.baseMachine (Base machine for PSSE models).

Parameters

Connectors

OpenIPSL.Electrical.Machines.PSSE.GENSAL

SALIENT POLE GENERATOR MODEL (QUADRATIC SATURATION ON D-AXIS)

Information

Extends from Icons.VerifiedModel (Icon for classes that were verified), BaseClasses.baseMachine (Base machine for PSSE models).

Parameters

Connectors

OpenIPSL.Electrical.Machines.PSSE.GENTPJ

WECC Type J GENERATOR: ROUND ROTOR WITH SATURATION ON BOTH AXES.

Information

Solid rotor generator with saturation on both axes. The saturation in this model is not only function of the air-gap flux, but also of armature current magnitude. This effect is included via parameter Kis.

If Kis is set to zero, then the model will behave like the WECC Type F Generator, that is, GENTPF.

Extends from OpenIPSL.Icons.VerifiedModel (Icon for classes that were verified), OpenIPSL.Electrical.Machines.PSSE.BaseClasses.baseMachine (Base machine for PSSE models).

Parameters

Connectors