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Based on the establishment of two-dimensional and three-dimensional models, this paper focuses on the optimization analysis from aspects of pole-slot combination, skewed stator slot, stator with auxiliary slot and different structures of rotator (including surface embedded structure, unequal air gap pole optimization and PM shifting). And on the basis of the above optimization analysis, the scheme selection is carried out. Finally, three different prototypes are developed and the optimal solution of 39 slots and 12 poles (Multi-layer windings) is obtained.
Inspec keywords: finite element analysis; torque; stators; air gaps
Subjects: d.c. machines; a.c. machines; Finite element analysis; Wind power plants