lect29 - Lecture 2 Lecture 2 9 9- E- E C C E743 E743...

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Unformatted text preview: Lecture 2 Lecture 2 9 9- E- E C C E743 E743 Professor: Ali Keyhani Professor: Ali Keyhani 3-Phase Induction Machines Reference Frame Theory Part IV 2 q-d Axis Voltage Equations q-d axis voltage equations can be written by inspection of Fig.1 And flux linkage equations are s s s s ds qs ds s ds qs ds qs s qs p i r V p i r V p i r V , + = +- = + + = ( 29 ( 29 r r r r dr qr r dr r dr qr dr r qr r qr p i r V p i r V p i r V + = + -- = + - + = ( 29 ( 29 s ls s dr ds M ds ls ds qr qs M qs ls qs i L i i L i L i i L i L , = + + = + + = ( 29 ( 29 r lr r dr ds M dr lr dr qr qs M qr lr qr i L i i L i L i i L i L = + + = + + = 3 q-d Axis Voltage Equations Fig.1 Axis of 2-pole, 3-phase symmetrical induction. 4 q-d Axis Voltage Equations Fig. 2. A 2-pole 3-phase symmetrical induction machine. 5 q-d Axis Voltage Equations Fig. 2. A 2-pole 3-phase symmetrical induction machine. 6 q-d Axis Voltage Equations Fig. 3. Equivalent circuits of a 3-phase, symmetrical induction machine with rotating q-d axis at speed of . 7 q-d Axis Voltage Equations Fig. 3. Equivalent circuits of a 3-phase, symmetrical induction machine with rotating q-d axis at speed of . 8 q-d Axis Voltage Equations Fig. 3. Equivalent circuits of a 3-phase, symmetrical induction machine with rotating q-d axis at speed of . 9...
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lect29 - Lecture 2 Lecture 2 9 9- E- E C C E743 E743...

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