ParksTransformation:

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   Parks transformation matrix from ABC to DQ coordinates for 3 phases.

   Type ParksTransformation for a demo.
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   Form:
             
   mABToDQ = ParksTransformation( omega, t )
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   ------
   Inputs
   ------
   omega      (1,1)  Electrical frequency (rad/sec)
   t          (1,1)  Time

   -------
   Outputs
   -------
   mABToDQ    (2,3)  Transformation matrix

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   Reference: A. Tahri, A. Draou, "DESIGN OF A SIMPLE MEASURING TECHNIQUE
              OF THE INSTANTANEOUS POWER IN THREE PHASE SYSTEM,"
              Journal of ELECTRICAL ENGINEERING, VOL. 56, NO. 7-8, 2005,
              221?224.
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Children:

Common: Graphics/Plot2D