OpenIPSL.Electrical.ThreePhase.Branches.Transformer

Models for three-phase transformers

Information

This package contains a model for three-phase transformers and a set of functions used to calculate three-phase impedance matrices depending on the transformer connection.

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

Package Content

Name	Description
Transformer_3Ph	Three Phase transformer modeled as a PI-equivalent device
TransfConnection	Set of functions used to calculate three-phase impedance matrices for transformers

OpenIPSL.Electrical.ThreePhase.Branches.Transformer.Transformer_3Ph

Three Phase transformer modeled as a PI-equivalent device

Information

This model was design to represent three-phase two-winding transformer.

The user should input the copper resistance R and leakage reactance X in per unit values. The user should also input the tap value, which is the relation between primary and secondary voltage levels, but in per unit. Finally, the user should select the transformer three-phase connection.

Based on this set of parameters, the pi-equivalent impedance matrices are calculated and the transformer equation is assembled. The transformer does not take into account excitation branch, since it is often neglected in transient-stability studies.

Primary side is represented by pins Ain, Bin, and Cin. Secondary side is represented by pins Aout, Bout, and Cout

Extends from ThreePhaseComponent (Partial model for inheritance of single-phase base power based on three-phase system base power.).

Parameters

Connectors