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
    1
    0
    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.
     
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