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1) Given a P-Pole induction machine p > 2, drive the speed of MMFs and MMFr for a person standing on the stator and the rotor.
2) When ωr > ωe, explain what happens to MMFr that is different than when ωr < ωe.
3) The stator winding of the induction machine described in problem 1 are connected to a 200-rad/sec source with
Vas = Vscos(200t)
Vbs = Vscos(200t - 120)
Vcs = Vs cos(200t + 120)
And ωrm = 115 rad/s.
Indicate the frequency of the stator and rotor and rotor currents in table 1: express all answers in rad/sec.
Table 1-
Actual (abc) variables
Startionary reference frame ω = 0
Rotor reference frame ω = ωr
Synchronous reference frame ω = ωe
Frequency of stator currents
4) Ias = 10cos(100t) in a balanced 3-phase system. Fill in the table below assuming you use the reference frame transformation presented
Reference frame with ω = 0
Reference frame with ω = 10
Reference frame with ω = 100
Frequency of currents
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