Generator Synchronization - Need advice on phase measurement

Discussion in 'The Projects Forum' started by kickurshin, Nov 6, 2010.

  1. kickurshin

    Thread Starter New Member

    Nov 6, 2010
    3
    0
    Good evening everyone, I've often lurked these forums but never posted until now.


    I am designing a single phase generator synchronization system for my college technical report. My mentor wants me to do an entirely digital system. I am in the preliminary planning stages and I am unsure how to measure the phase difference between the line and generator voltage.

    I was thinking of converting the ac waveform to a square wave so that I may calculate the time difference between the rising edge of each waveform.

    I was simply looking for suggestions to implement this design, thanks for your time, I look forward to contributing what I can to this forum!

    Cheers,

    -kickurshin
     
  2. sceadwian

    New Member

    Jun 1, 2009
    499
    37
    A simple rectifier will do that just fine.
     
  3. CDRIVE

    Senior Member

    Jul 1, 2008
    2,223
    99
    Think 'Zero Crossing Detector' instead.
     
  4. kickurshin

    Thread Starter New Member

    Nov 6, 2010
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    0
  5. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
    You would need an isolation transformer for safety.

    A Step down transformer and a phase detection IC would work nicely.
     
  6. sceadwian

    New Member

    Jun 1, 2009
    499
    37
    kickurshin, the diode used in that circuit makes it a half wave rectifier...
    The circuit depicted will work just fine it gives you isolation from the AC line as well.

    thatoneguy, the circuit he linked uses an opto isolater, that provides isolation.
     
  7. kickurshin

    Thread Starter New Member

    Nov 6, 2010
    3
    0
    My mistake, that was a pretty late post! Thanks for your help everyone.
     
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