Package Modelica.​Electrical.​Machines.​Interfaces
SpacePhasor connector and PartialMachines

Information

This package contains the space phasor connector and partial models for machine models.

Extends from Modelica.​Icons.​InterfacesPackage (Icon for packages containing interfaces).

Package Contents

NameDescription
DCMachinesThermal ports of DC machines
FlangeSupportShaft and support
InductionMachinesInterfaces and partial models for induction machines
PartialBasicDCMachinePartial model for DC machine
PartialBasicInductionMachinePartial model for induction machine
PartialBasicMachinePartial model for all machines
PartialBasicTransformerPartial model of three-phase transformer
PowerBalanceTransformerPower balance of transformers
SpacePhasorConnector for Space Phasors
ThermalPortTransformerThermal port of transformers

Connector Modelica.​Electrical.​Machines.​Interfaces.​SpacePhasor
Connector for Space Phasors

Information

Connector for Space Phasors:

Fields

TypeNameDescription
Voltagev_[2]1=real, 2=imaginary part
flow Currenti_[2]1=real, 2=imaginary part

Partial Model Modelica.​Electrical.​Machines.​Interfaces.​PartialBasicMachine
Partial model for all machines

Information

Base partial model DC machines:

Besides the mechanical connector flange (i.e., the shaft) the machines have a second mechanical connector support.
If useSupport = false, it is assumed that the stator is fixed.
Otherwise reaction torque (i.e., air gap torque, minus acceleration torque for stator's moment of inertia) can be measured at support.
One may also fix the shaft and let rotate the stator; parameter Js is only of importance when the stator is rotating.

Extends from Modelica.​Electrical.​Machines.​Icons.​TransientMachine.

Parameters

TypeNameDefaultDescription
InertiaJr Rotor's moment of inertia
BooleanuseSupportfalseEnable / disable (=fixed stator) support
InertiaJsJrStator's moment of inertia
BooleanuseThermalPortfalseEnable / disable (=fixed temperatures) thermal port
FrictionParametersfrictionParameters Friction loss parameter record

Connectors

TypeNameDescription
Flange_aflangeShaft
Flange_asupportSupport at which the reaction torque is acting

Partial Model Modelica.​Electrical.​Machines.​Interfaces.​PartialBasicInductionMachine
Partial model for induction machine

Information

Partial model for induction machine models

Extends from Modelica.​Electrical.​Machines.​Interfaces.​PartialBasicMachine (Partial model for all machines).

Parameters

TypeNameDefaultDescription
final Integerm3Number of phases
Integerp Number of pole pairs (Integer)
FrequencyfsNominal Nominal frequency
TemperatureTsOperational Operational temperature of stator resistance
ResistanceRs Stator resistance per phase at TRef
TemperatureTsRef Reference temperature of stator resistance
LinearTemperatureCoefficient20alpha20s Temperature coefficient of stator resistance at 20 degC
InductanceLszeroLssigmaStator zero sequence inductance
InductanceLssigma Stator stray inductance per phase
InertiaJr Rotor's moment of inertia
BooleanuseSupportfalseEnable / disable (=fixed stator) support
InertiaJsJrStator's moment of inertia
BooleanuseThermalPortfalseEnable / disable (=fixed temperatures) thermal port
FrictionParametersfrictionParameters Friction loss parameter record
CoreParametersstatorCoreParameters Stator core loss parameter record; all parameters refer to stator side
StrayLoadParametersstrayLoadParameters Stray load loss parameter record

Connectors

TypeNameDescription
Flange_aflangeShaft
Flange_asupportSupport at which the reaction torque is acting
PositivePlugplug_spPositive stator plug
NegativePlugplug_snNegative stator plug
PartialThermalPortInductionMachinesthermalPort 

Partial Model Modelica.​Electrical.​Machines.​Interfaces.​PartialBasicDCMachine
Partial model for DC machine

Information

Partial model for DC machine models.

Extends from Modelica.​Electrical.​Machines.​Interfaces.​PartialBasicMachine (Partial model for all machines).

Parameters

TypeNameDefaultDescription
TemperatureTaOperational Operational armature temperature
VoltageVaNominal Nominal armature voltage
CurrentIaNominal Nominal armature current (>0..Motor, <0..Generator)
AngularVelocitywNominal Nominal speed
TemperatureTaNominal Nominal armature temperature
ResistanceRa Armature resistance at TRef
TemperatureTaRef Reference temperature of armature resistance
LinearTemperatureCoefficient20alpha20a Temperature coefficient of armature resistance
InductanceLa Armature inductance
InertiaJr Rotor's moment of inertia
BooleanuseSupportfalseEnable / disable (=fixed stator) support
InertiaJsJrStator's moment of inertia
BooleanuseThermalPortfalseEnable / disable (=fixed temperatures) thermal port
FrictionParametersfrictionParameters Friction loss parameter record
CoreParameterscoreParameters Armature core loss parameter record
StrayLoadParametersstrayLoadParameters Stray load loss parameter record
BrushParametersbrushParameters Brush loss parameter record

Connectors

TypeNameDescription
Flange_aflangeShaft
Flange_asupportSupport at which the reaction torque is acting
PositivePinpin_apPositive armature pin
NegativePinpin_anNegative armature pin
PartialThermalPortDCMachinesthermalPort 

Partial Model Modelica.​Electrical.​Machines.​Interfaces.​PartialBasicTransformer
Partial model of three-phase transformer

Information

Partial model of a three-phase transformer, containing primary and secondary resistances and stray inductances, as well as the iron core. Circuit layout (vector group) of primary and secondary windings have to be defined.
Default values for transformer's parameters (a realistic example) are:
turns ratio n 1
nominal frequency fNominal 50Hz
nominal voltage per phase 100V RMS
nominal current per phase 100A RMS
nominal apparent power 30kVA
primary resistance R1 0.005Ohm per phase at reference temperature
reference temperature T1Ref 20°C
temperature coefficient alpha20_1 01/K
primary stray inductance L1sigma 78E-6H per phase
secondary resistance R2 0.005Ohm per phase at reference temperature
reference temperature T2Ref 20°C
temperature coefficient alpha20_2 01/K
secondary stray inductance L2sigma 78E-6H per phase
operational temperature T1Operational 20°C
operational temperature T2Operational 20°C
These values give the operational parameters:
nominal voltage drop 0.05p.u.
nominal copper losses 300W

Extends from Modelica.​Electrical.​Machines.​Icons.​TransientTransformer.

Parameters

TypeNameDefaultDescription
final Integerm3Number of phases
Realn Ratio primary voltage (line-to-line) / secondary voltage (line-to-line)
ResistanceR1 Primary resistance per phase at TRef
TemperatureT1Ref Reference temperature of primary resistance
LinearTemperatureCoefficient20alpha20_1 Temperature coefficient of primary resistance at 20 degC
InductanceL1sigma Primary stray inductance per phase
ResistanceR2 Secondary resistance per phase at TRef
TemperatureT2Ref Reference temperature of secondary resistance
LinearTemperatureCoefficient20alpha20_2 Temperature coefficient of secondary resistance at 20 degC
InductanceL2sigma Secondary stray inductance per phase
BooleanuseThermalPortfalseEnable / disable (=fixed temperatures) thermal port
TemperatureT1Operational Operational temperature of primary resistance
TemperatureT2Operational Operational temperature of secondary resistance

Connectors

TypeNameDescription
PositivePlugplug1Primary plug
NegativePlugplug2Secondary plug
ThermalPortTransformerthermalPort 

Connector Modelica.​Electrical.​Machines.​Interfaces.​ThermalPortTransformer
Thermal port of transformers

Information

Thermal port for transformers

Fields

TypeNameDescription
parameter Integermnumber of phases
HeatPort_aheatPort1[m]Heat port of primary windings
HeatPort_aheatPort2[m]Heat port of secondary windings
HeatPort_aheatPortCoreHeat port of (optional) core losses

Record Modelica.​Electrical.​Machines.​Interfaces.​PowerBalanceTransformer
Power balance of transformers

Information

Power balance of transformers.

Extends from Modelica.​Icons.​Record (Icon for records).

Fields

TypeNameDescription
Powerpower1Primary power
Powerpower2Secondary power
PowerlossPowerTotalTotal loss power
PowerlossPower1Primary copper losses
PowerlossPower2Secondary copper losses
PowerlossPowerCoreCore losses

Partial Model Modelica.​Electrical.​Machines.​Interfaces.​FlangeSupport
Shaft and support

Information

This partial model defines shaft and housing connector for loss models. Positive torque tau acts as braking torque.

Connectors

TypeNameDescription
Flange_aflangeShaft end
Flange_asupportHousing and support