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Mutual Inductance (3 Windings)

Purpose

Magnetic coupling between three lossy windings

Library

Electrical / Transformers

Description

pict

This component implements a magnetic coupling between three separate windings. For all windings the self inductance and resistance are specified individually. The mutual inductance and resistance are modeled as linear elements.

The electrical circuit for this component is given below:

pict

In the symbol of the mutual inductance, the positive terminal of the primary winding is marked with a little circle. The positive terminals of the secondary and tertiary windings are marked with dots.

Parameters

Self inductance
A three-element vector containing the self inductance for the primary winding L1  , the secondary winding L2   and the tertiary winding L3  . The inductivity is given in henries (H).
Winding resistance
A three-element vector containing the self resistance of the primary winding R1  , the secondary winding R2    and the tertiary winding R3  , in ohms (_O_  ).
Mutual inductance
The mutual inductance Lm  , in henries (H).
Mutual resistance
The mutual resistance Rm  , in ohms (_O_  ).
Initial current
A three-element vector containing the initial currents on the primary side i1  , the secondary side i2   and the tertiary side i3  , in amperes (A). The direction of the initial current inside the component is from the positive to the negative terminal. The default value is [0 0 0].

Probe Signals

Winding i current
The current flowing through winding i, in amperes (A).
Winding i voltage
The voltage measured across winding i, in volts (V).