A weak thermal coupling and no electromagnetic coupling dual-redundancy permanent magnet synchronous motor(DRPMSM)was introduced. Stator winding copper loss,stator iron core losses in yoke,big teeth and small teeth,and eddy current losses in permanent magnet and rotor sheath were obtained with finite element analysis,and heat generation rates were calculated. On the basis of heat transfer theory,thermal conductivities and surface heat transfer coefficients of each part of motor were determined,stator windin...
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