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 d-axis. ...(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 s-domain. ...(10) EEE G544/09/Compre 1...
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- Spring '07
- Impedance, Magnetic Field, Inductor, Electric motor, air gap, air gap mmf