PLECS 3.5 Online Help

Linear Yd5y0 Transformer (Deprecated)

Purpose

3-winding, 3-phase transformer in Yd5y0 connection

Description

pict

Implements a linear three-phase transformer with three windings in Yd5y0 connection using three Linear 3-Winding Transformers. The magnetization inductance Lm   and the core losses Rm   are modeled as linear elements. Their values are referred to the primary side.

Parameters

Leakage inductance
A three-element vector containing the leakage inductance of the primary side L
 1  , the secondary side L
 2   and the tertiary side L
 3  . The inductivity is given in henries (H).
Winding resistance
A three-element vector containing the resistance of the primary winding R1  , the secondary winding R2    and the tertiary winding R3  , in ohms (_O_  ).
No. of turns
A three-element vector containing the number of turns of the primary winding n1  , the secondary winding n2   and the tertiary winding n3  .
Magnetization inductance
The magnetization inductance L
  m  , in henries (H). The value is referred to the primary side. L
 rm   should be significantly smaller than L
 m  . The default for L
 rm   is 0.
Core loss resistance
An equivalent resistance Rm   representing the iron losses in the transformer core. The value in ohms (_O_  ) is referred to the primary side.
Initial currents wdg. 1
A three-element vector containing the initial currents on the primary side [i1,a i1,b i1,c]   in amperes (A). The currents are considered positive if flowing into the transformer. The default is [0 0 0].
Initial currents wdg. 2
A two-element vector containing the initial currents on the secondary side [i2,a i2,b]    in amperes (A). The currents are considered positive if flowing into the transformer. The default is [0 0 0].
Initial currents wdg. 3
A three-element vector containing the initial currents on the tertiary side [i3,a i3,b i3,c]   in amperes (A). The currents are considered positive if flowing into the transformer. The default is [0 0 0].