Unformatted text preview: ω ? ...(10) 3. Starting with the electrical equations of the field excited synchronous motor in rotor reference frame, obtain the corresponding equations for a permanent magnet synchronous motor. Assume that the rotor has laminated core with no cages so that electromagnetic damping may be neglected, and that the rotor permanent magnet produces a linkage ψ d along the stator winding daxis. ...(10) 4. A DC shunt connected motor has armature and field resistance values of r a and r f , corresponding winding leakage inductance values L a and L f , and the mutual inductance between field and armature as L md . While running at initial speed , the electrical terminals are suddenly shorted. Assuming that current dynamics decay before the speed undergoes any substantial change, obtain the decay function for the armature current in sdomain. ...(10) EEE G544/09/Compre 1...
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 Spring '07
 Subramanian
 Impedance, Magnetic Field, Inductor, Electric motor, air gap, air gap mmf

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