D-Z-Z Phase Shifting Transformer, in Simulink

Discussion in 'The Projects Forum' started by gagreflex, Aug 30, 2008.

  1. gagreflex

    Thread Starter New Member

    Aug 30, 2008
    hello all, i'm new here, and i'm currently investigating current harmonics on the primary side of the transformer in a typical 12/24 pulse rectifier system.

    i wish to implement 12 pulse first, at -7.5 and 22.5 degrees (for 30 degree phase shift) so that it is easily extendable to 24 pulse (-7.5, +7.5, -22.5, +22.5)

    the DC link output of a 12 pulse rectifier should follow:

    (2)(1.35)(V line-to-line of output of secondary of transformer)

    so for a 2.2kv output of transformer i should expect (2)(1.35)(2200) = 5940.

    but my simulink shows a 1000V more (around 7000V)

    can anyone shed light on this?
    I'm sure my connections are correct in simulink.