Comparative Thermal and Demagnetization Analysis of the PM Machines with Neodymium and Ferrite Magnets

This paper provides computer analysis and experiential investigation of the permanent magnet machines with neodymium ferrite magnets to discuss feasibility utilizing induction machines-oriented equipment for PM machine production. For this purpose, are obtained by replacing squirrel-cage rotor motor flux-focusing (tangential) surface-mounted (radial) rotors. Electromechanical parameters as electromagnetic torque output power discussed compared. The temperatures also calculated at rated current, short circuit scenarios performance two different cooling systems in minimizing temperature effect on investigated. Furthermore, demagnetization various load conditions is studied. Finally, results modeling validated physical prototypes machines. characteristics electrical under study were using Simcenter MagNet MotorSolve software packages.