Good evening dear all. How to calculate the slip speed (WRc ) linked to the Control Winding (CW) in a Brushless Doubly Fed Induction Machine (BDFIM)?

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Eung-Seok Kim

We think that the slip speed can be calculated from the difference between the actual speed measurements of the rotor and the output voltage frequency measurements of the generator(or the drive voltage of the motor).

Alix Dountio

Thanks a lot Mr. Eung-Seok.I did what you explained but I don't know why I can't get the good result. In fact, since they are two windings on the stator, the functioning in the synchronous mode is ensure when the sleep speed of the Power winding (wRp) and the sleep speed of the Control winding (wRc) are equal. Perhaps the relation I am using to calculate wRc is not correct. Can you please help me on that way?

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