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alpha-beta -> dq Transformation blocks

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The transformation from alpha beta to dq doesnt output the correct results. I have compared it to matlab's block then. It turns out that the blocks give erroneous results??

I have attached the simulink file through which I did my comparison. Could somebody clarify where is the mistake?
asked Mar 2, 2021 by adeel1 (27 points)
There are no files attached.
commented Mar 2, 2021 by Kris Eberle (1,583 points)
Sorry, It is attached now.
commented Mar 2, 2021 by adeel1 (27 points)

1 Answer

+1 vote
 
Best answer

Two small issues:

  1. The SimScape transformation blocks have a "Rotating Frame Alignment" parameter.  To compare the equations between PLECS and SimScape, the frame alignment must be set to "Aligned with phase A axis".  In that case the equations shown in the MathWorks help aligns with the PLECS component.
  2. The inputs into your PLECS Scope are switched.

 

 

answered Mar 2, 2021 by Bryan Lieblick (1,905 points)
selected Mar 3, 2021 by adeel1
P.S: I switched the inputs just for seeing if it has been reversed.
commented Mar 3, 2021 by adeel1 (27 points)
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