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This paper presents an improved analytical model for predicting the ac losses in form-wound windings used in high-performance ac machines attributable to the stator currents. The complete model comprises two sub-models that separately calculate the ac losses contributed by the in-slot and end-winding portions. 3D finite element analysis and experimental tests are conducted to demonstrate the usefulness...
A 2-D analytical closed-form model of bar-wound ac machine stator slots is presented for calculating ac winding losses attributable to armature reaction effects. The proposed model is capable of predicting the ac winding losses in the slots of bar-wound stators for arbitrary numbers of bar conductor layers excited with currents of variable amplitude, frequency, and phase angle. Finite element (FE)...
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