modelMvLvTransformer_3P
Medium to low-voltage transfomer for three-phase grids
Information
Select the Rated Power for the Transformer as apparent power Sn! Only three-phase transformers!
This will set the winding impedance, which define the Joule losses and voltage drop over the transformer.
Equivalent scheme of a three-phase transformer, used to define the losses and voltage drops within the transformer. Therefore, the input voltage is the secondary nominal voltage, e.g., 230 V.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| IDEAS.Experimental.Electric.Data.Interfaces.TransformerImp | transformer | Choose a transformer | |
| Boolean | traTCal | true | Calculate transformer hot spot? |
| Real | gridFreq | 50 | Grid frequency: should normally not be changed when simulating belgian grids! |
| Modelica.Units.SI.ComplexVoltage | VSource | 230 + 0*Modelica.ComplexMath.j | Voltage |
| Modelica.Units.SI.HeatFlowRate | traLosQRef | transformer.P0 + Modelica.ComplexMath.real(transformer.Zd)*(transformer.Sn/3/Modelica.ComplexMath.real(VSource))^2 + Modelica.ComplexMath.real(transformer.Zi)*(transformer.Sn/3/Modelica.ComplexMath.real(VSource))^2 + Modelica.ComplexMath.real(transformer.Z0)*(transformer.Sn/3/Modelica.ComplexMath.real(VSource))^2 | |
| Modelica.Units.SI.HeatCapacity | CHs | transformer.tauHs/(RHs + RTo) | |
| Modelica.Units.SI.ThermalResistance | RHs | (transformer.THs - transformer.TTo)/traLosQRef | |
| Modelica.Units.SI.HeatCapacity | CTo | transformer.tauTo/RTo | |
| Modelica.Units.SI.ThermalResistance | RTo | (transformer.TTo - transformer.TRef)/traLosQRef |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Electrical.QuasiStatic.SinglePhase.Interfaces.PositivePin[3] | pin_lv_p | ||
| Modelica.Electrical.QuasiStatic.SinglePhase.Interfaces.NegativePin | pin_lv_n | This should NOT be connected for single phase equivalent circuits |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.ActivePower | traLosP0 | transformer.P0 | No-load losses (can be assumed constant) |
| Modelica.Units.SI.ActivePower | traLosPTot | transformer.P0 + phase1.Plos + phase2.Plos + phase3.Plos | Total losses in transformer |
| Modelica.Units.SI.Temperature | THs | capHotSpot.T | Hottest spot temperature |
| Modelica.Units.SI.Temperature | TTo | capOil.T | Top oil temperature |
Revisions
-
January 26, 2015 by Juan Van Roy:
Small changes.