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Unformatted text preview: currents of a 4 pole machine are given by ) 200 cos( 50 ) 200 sin( 50 t i t i bs as = = The speed of the machine is 500 rpm in the CW direction. What is the physical speed and direction of the stator MMF as viewed from the rotor. Problem 46 Phase Inductance Suppose the winding function of a-phase of the stator is given by = sm s as P N P w 2 cos 2 and the winding function of the b-phase of the rotor is given by = rm r br P N P w 2 sin 2 Express the mutual inductance between the a-phase stator and b-phase rotor windings in terms of s N , r N , P , the rotor radius r , the rotor length L , the airgap g , the permeability of free space and electrical rotor position r ....
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This note was uploaded on 09/22/2011 for the course ECE 321 taught by Professor Staff during the Spring '08 term at Purdue University-West Lafayette.
- Spring '08