Zero crossing detection control og thyristor in simulink

Discussion in 'Programmer's Corner' started by AuroraAndersson, Mar 4, 2016.

  1. AuroraAndersson

    Thread Starter New Member

    Mar 4, 2016
    I am building a model in simulink with variable frequency, and I am having trouble with generating a gate signal to the thyristors. It is an isolated system, with an induction generator feeding a resistive load. A capacitor bank is providing reactive power. To control the frequency, a thyristor controlled resistive dump load is used.

    I wish to find the zero-crossing point for the voltage, and use this to generate a gate signal for the thyristors. Does anyone have an idea of how to do this i simulink?

    Thank you!
  2. ScottWang


    Aug 23, 2012
    Could you attach the schematic(as 800x600 jpg or gif file) and the file of model then our helper will be more easier to do a judgement?