exam4solution

# exam4solution - EE321 Exam 4 Solution Outline Problem 1...

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EE321 Exam 4 Solution Outline Problem 1 r s 0 := L ls 0 := L lr 2.65 10 3 := L m 20.1 10 3 := r r 41.3 10 3 := P4 := V s 460 := N 3 := ω e 2 π 60 := ω r 1795 2 π 60 P 2 := S ω e ω r ω e := Z in r s j ω e L ls + 1 1 j ω e L m 1 r r S j ω e L lr + + + := i as V s Z in := i as 69.924 10 0 × = arg i as () 180 π 63.866 10 0 × =

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Problem 2 MMF s 100 := rad/s CCW ω r 300 := rad/s CCW rad/s CCW Speed and Direction of Stator MMF Viewed Observer on Rotor: MMF s ω r 400 10 0 × = Radian Frequency of Rotor Currents: 400 rad/s Speed and Direction of Rotor MMF Viewed From Rotor: MMF r 400 := rad/s CCW Speed and Directio of Rotor MMF as Viewed From Stator 100 rad/s CCW Problem 3 ω rm 100 := v as 4 −ω rm sin 4 θ rm () = v bs 4 rm sin 4 θ rm 2 π 3 = v as_phasor e j 3 π 2 := v bs_phasor e j 3 π 2 j2 π 3 := v ab_phasor v as_phasor
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## This note was uploaded on 02/19/2012 for the course ECE 321 taught by Professor Staff during the Spring '08 term at Purdue.

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exam4solution - EE321 Exam 4 Solution Outline Problem 1...

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