LBL logo

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion

Package with transformers and converter models for three-phase balanced AC systems

Information

This package contains models for three-phase balanced AC/AC transformers and AC/DC converters.

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

Package Content

Name Description
Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACConverter ACACConverter AC AC converter three phase balanced systems
Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACTransformer ACACTransformer AC AC transformer three phase balanced systems
Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACTransformerFull ACACTransformerFull AC AC transformer full model for three phase balanced systems
Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACDCConverter ACDCConverter AC DC converter
Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples Examples Package with example models

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACConverter Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACConverter

AC AC converter three phase balanced systems

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACConverter

Information

This model represents a simplified conversion between two AC three-phase balanced systems. The conversion losses are represented by a constant efficiency η.

See model Buildings.Electrical.AC.OnePhase.Conversion.ACACConverter for more information.

Extends from Buildings.Electrical.AC.OnePhase.Conversion.ACACConverter (AC AC converter single phase systems).

Parameters

TypeNameDefaultDescription
RealconversionFactor Ratio of QS rms voltage on side 2 / QS rms voltage on side 1
Realeta Converter efficiency, pLoss = (1-eta) * Ptr
Ground
side 1
Booleanground_1falseIf true, connect side 1 of converter to ground
side 2
Booleanground_2trueIf true, connect side 2 of converter to ground

Modelica definition

model ACACConverter "AC AC converter three phase balanced systems" extends Buildings.Electrical.AC.OnePhase.Conversion.ACACConverter( redeclare Interfaces.Terminal_n terminal_n, redeclare Interfaces.Terminal_p terminal_p); end ACACConverter;

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACTransformer Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACTransformer

AC AC transformer three phase balanced systems

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACTransformer

Information

Simple transformer model for three-phase balanced AC systems. The model does not include core and magnetic losses.

See model Buildings.Electrical.AC.OnePhase.Conversion.ACACTransformer for more information.

Extends from Buildings.Electrical.AC.OnePhase.Conversion.ACACTransformer (AC AC transformer simplified equivalent circuit).

Parameters

TypeNameDefaultDescription
VoltageVHigh Rms voltage on side 1 of the transformer (primary side) [V]
VoltageVLow Rms voltage on side 2 of the transformer (secondary side) [V]
ApparentPowerVABase Nominal power of the transformer [VA]
RealXoverR Ratio between the complex and real components of the impedance (XL/R)
RealZperc Short circuit impedance
Ground
side 1
Booleanground_1falseIf true, connect side 1 of converter to ground
side 2
Booleanground_2trueIf true, connect side 2 of converter to ground
Initialization
Anglephi_10Angle of the voltage side 1 at initialization [rad]
Anglephi_2phi_1Angle of the voltage side 2 at initialization [rad]

Modelica definition

model ACACTransformer "AC AC transformer three phase balanced systems" extends Buildings.Electrical.AC.OnePhase.Conversion.ACACTransformer( redeclare Interfaces.Terminal_n terminal_n, redeclare Interfaces.Terminal_p terminal_p); end ACACTransformer;

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACTransformerFull Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACTransformerFull

AC AC transformer full model for three phase balanced systems

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACACTransformerFull

Information

Model of a transformer for three-phase balanced AC systems. The model includes core and magnetic losses.

See model Buildings.Electrical.AC.OnePhase.Conversion.ACACTransformerFull for more information.

Extends from Buildings.Electrical.AC.OnePhase.Conversion.ACACTransformerFull (AC AC transformer with detailed equivalent circuit).

Parameters

TypeNameDefaultDescription
VoltageVHigh RMS voltage on side 1 of the transformer (primary side) [V]
VoltageVLow RMS voltage on side 2 of the transformer (secondary side) [V]
ApparentPowerVABase Nominal power of the transformer [VA]
Frequencyf Nominal frequency [Hz]
PerUnitR1 Resistance on side 1 of the transformer (pu) [1]
PerUnitL1 Inductance on side 1 of the transformer (pu) [1]
PerUnitR2 Resistance on side 2 of the transformer (pu) [1]
PerUnitL2 Inductance on side 2 of the transformer (pu) [1]
Magnetization
BooleanmagEffectsfalseIf true, introduce magnetization effects
PerUnitRm Magnetization resistance (pu) [1]
PerUnitLm Magnetization inductance (pu) [1]
Ground
side 1
Booleanground_1falseConnect side 1 of converter to ground
side 2
Booleanground_2trueConnect side 2 of converter to ground
Initialization
Anglephi_10Angle of the voltage side 1 at initialization [rad]
Anglephi_2phi_1Angle of the voltage side 2 at initialization [rad]

Modelica definition

model ACACTransformerFull "AC AC transformer full model for three phase balanced systems" extends Buildings.Electrical.AC.OnePhase.Conversion.ACACTransformerFull( redeclare Interfaces.Terminal_n terminal_n, redeclare Interfaces.Terminal_p terminal_p); end ACACTransformerFull;

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACDCConverter Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACDCConverter

AC DC converter

Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.ACDCConverter

Information

This model represents a simplified conversion between a three-phase balanced AC system and a DC systems.

See model Buildings.Electrical.AC.OnePhase.Conversion.ACDCConverter for more information.

Extends from Buildings.Electrical.AC.OnePhase.Conversion.ACDCConverter (AC DC converter).

Parameters

TypeNameDefaultDescription
RealconversionFactor Ratio of DC voltage / AC RMS voltage
Realeta Converter efficiency, pLoss = (1-eta) * Ptr
Ground
AC side
Booleanground_ACfalseConnect AC side of converter to ground
DC side
Booleanground_DCtrueConnect DC side of converter to ground

Connectors

TypeNameDescription
Terminal_pterminal_pElectric terminal side n

Modelica definition

model ACDCConverter "AC DC converter" extends Buildings.Electrical.AC.OnePhase.Conversion.ACDCConverter( redeclare Interfaces.Terminal_n terminal_n); end ACDCConverter;

http://simulationresearch.lbl.gov/modelica