.BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Conversion.ACACTransformerFull

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, R_m and inductances L₁, L₂, and L_m.

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), and
• R_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 BuildingSystems.Electrical.AC.OnePhase.Conversion.ACACTransformerFull.

See BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Conversion.BaseClasses.PartialConverterYY for details on the connections.

Revisions

• October 3, 2014, by Marco Bonvini:
  Revised documentation.
• June 6, 2014, by Marco Bonvini:
  First implementation.