modelACACTransformerFull
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 detailed transformer model that takes into accounts the winding Joule losses, and the leakage reactances on the primary and secondary side. The model also takes into account the core or iron losses and the losses due to magnetization effects.
The losses are represented by a series of resistances R1, R2, Rm and inductances L1, L2, and Lm.
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,f- frequency,R_1, L_1- resistance and inductance at primary side (per unit),R_2, L_2- resistance and inductance at secondary side (per unit), andR_m, L_m- resistance and inductance for magnetization effects (per unit).
Given the nominal conditions, the model computes the values of the nominal impedances at the primary and secondary side. Given these values, the per unit values are transformed into the actual values of the resistances and inductancs.
The magnetization losses can be enabled or disabled using the boolean flag magEffects.
Configuration:
The image below describes the connection of the windings.
Note:
This model reuses models from Buildings.Electrical.AC.OnePhase.Conversion.ACACTransformerFull.
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 | |
| Modelica.Units.SI.Frequency | f | Nominal frequency | |
| Buildings.Electrical.Types.PerUnit | R1 | Resistance on side 1 of the transformer (pu) | |
| Buildings.Electrical.Types.PerUnit | L1 | Inductance on side 1 of the transformer (pu) | |
| Buildings.Electrical.Types.PerUnit | R2 | Resistance on side 2 of the transformer (pu) | |
| Buildings.Electrical.Types.PerUnit | L2 | Inductance on side 2 of the transformer (pu) | |
| Magnetization | |||
| Boolean | magEffects | false | If =true introduce magnetization effects |
| Buildings.Electrical.Types.PerUnit | Rm | Magnetization resistance (pu) | |
| Buildings.Electrical.Types.PerUnit | Lm | Magnetization inductance (pu) | |
| Ground › side 1 | |||
| Boolean | ground_1 | false | Connect side 1 of converter to ground |
| Ground › side 2 | |||
| Boolean | ground_2 | true | Connect side 2 of converter 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.