Question: a Y-connected three-phase, eight-pole, interior permanent magnet synchronous motor: the stator coil resistance is 5.67 m2, L= 110 pH and L=190 H, and the open-circuit

a Y-connected three-phase, eight-pole, interior permanent magnet synchronous motor:

the stator coil resistance is 5.67 m2, L= 110 pH and L=190 µH, and the open-circuit phase voltage

is Voc 20.1 Verms) at a speed of 1000 rpm.

a) Find the rotor flux linking the stator Ap

b) Find the current angle ; required to maximize the torque if the phase current magnitude is 600A peak.

c) Find the maximum torque.

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