Magnetic and thermal performance of a synchronous motor under loss minimization control

The steady state magnetic and thermal performance of a wound-field cylindri cal rotor synchronous motor under loss minimization control is investigated , The calculated magnetic field waveforms are presented and it is shown tha t loss minimization control decreases the magnetic saturation. It is also p roved that although the optimal stator current is increased, the temperatur e is decreased in all parts of the motor. Theoretical and experimental resu lts are presented to verify the operational improvements.