True Power Factor and Spice

Discussion in 'The Projects Forum' started by Endamame, Apr 5, 2009.

  1. Endamame

    Thread Starter New Member

    Apr 5, 2009
    1
    0
    Let me introduce myself. I am doing a project analyzing power supply performance using LTSpice. Specifically I need to determine the quantity True Power factor. I am trying to figure how to use spice to calculate this.

    True Power factor consists of 2 components. Displacement PF multiplied by Distortion PF. Displacement PF is easily to calculate but I can figure out how to do Distortion PF.

    The formula for distortion PF = I(1)_RMS / I(T)_RMS

    where I(1)_RMS is the RMS of the fundamental harmonic of the current
    where I(T)_RMS is the RMS of the total current

    http://users.ece.utexas.edu/~grady/POWERFAC.pdf

    I would appreciate any help ...

    Thanks

    Frank
     
  2. KL7AJ

    AAC Fanatic!

    Nov 4, 2008
    2,039
    287
    I will get back to you on this one. Do you know the total harmonic content?

    Eric
     
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