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Rotor magnetic field and stator magnetic field

  1. Jun 26, 2017 #1
    This is one of the big confusions i have. When rotor magnetic field is 90 degrees with respect to stator magnetic field we get maximum torque. In field oriented control the a, b, c axis is converted to d and q axis. So making d axis to 0 and q axis to torque and running through pi loop does automatically the 90 angle differnce? Please help.
     
  2. jcsd
  3. Jun 26, 2017 #2

    jim hardy

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    I dont think i know enough to address that postulate

    Have you dug through that TI paper on FOC?

    upload_2017-6-26_14-22-21.png
     
  4. Jun 26, 2017 #3

    jim hardy

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  5. Jun 26, 2017 #4

    jim hardy

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    Well i just watched all 53 minutes of it.

    Fabulous presentation . Holds you like a Tom Clancy novel. Took me right back to sophomore year Analog Computing class !


    See around minutes 13 and 40.
    The PI loop just drives measured current to desired amplitude.
     
    Last edited: Jun 26, 2017
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