modelACACTransformer
Extends from Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.BaseClasses.PartialConverterYY (Model of a transformer with Y connection primary side and Y connection secondary side).
Information
This is a simplified equivalent transformer model. The model accounts for winding Joule losses and leakage reactances that are represented by a series of a resistance R and an inductance L. The resistance and the inductance represent both the effects of the secondary and primary side of the transformer.
The model is parameterized using the following parameters
Vhigh- RMS voltage at primary side,Vlow- RMS voltage at secondary side,VAbase- apparent nominal power of the transformer,XoverR- ratio between reactance and resistance, andZperc- the short circuit impedance.
Given the nominal conditions, the model computes the values of the resistance and inductance.
Configuration:
The image below describes the connection of the windings.
Note:
This model reuses models from Buildings.Electrical.AC.OnePhase.Conversion.ACACTransformer.
See Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.BaseClasses.PartialConverterYY for details on the connections.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Voltage | VHigh | Rms voltage on side 1 of the transformer (primary side) | |
| Modelica.Units.SI.Voltage | VLow | Rms voltage on side 2 of the transformer (secondary side) | |
| Modelica.Units.SI.ApparentPower | VABase | Nominal power of the transformer | |
| Real | XoverR | Ratio between the complex and real components of the impedance (XL/R) | |
| Real | Zperc | Short circuit impedance | |
| Ground › side 1 | |||
| Boolean | ground_1 | false | Connect side 1 of transformer to ground |
| Ground › side 2 | |||
| Boolean | ground_2 | true | Connect side 2 of transformer to ground |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Interfaces.Terminal_n | terminal_n (from PartialConverter) | Electrical connector side N | |
| Interfaces.Terminal_p | terminal_p (from PartialConverter) | Electrical connector side P |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Electrical.Interfaces.PartialConversion | conv1 (from PartialConverter) | ||
| Buildings.Electrical.Interfaces.PartialConversion | conv2 (from PartialConverter) | ||
| Buildings.Electrical.Interfaces.PartialConversion | conv3 (from PartialConverter) | ||
| Interfaces.Connection3to3Ground_n | connection3to4_n (from PartialConverterYY) | Conversion between 3 to 4 connectors | |
| Interfaces.Connection3to3Ground_p | connection3to4_p (from PartialConverterYY) | Conversion between 3 to 4 connectors | |
| OnePhase.Basics.Ground | ground_n (from PartialConverterYY) | Ground reference | |
| OnePhase.Basics.Ground | ground_p (from PartialConverterYY) | Ground reference |
Revisions
-
October 3, 2014, by Marco Bonvini:
Revised documentation. -
June 6, 2014, by Marco Bonvini:
First implementation.