An accurate, analytical evaluation of the e.m.f. waveforms in isotropic synchronous machines is developed, by employing a suited analytical field model. To this aim, the flux linkage of each armature coil is evaluated, as a function of time and rotor position, subsequently obtaining the phase flux linkage by suitably summing the coil contributions: the method, for now limited to unsaturated conditions, takes into account the actual winding features (field N° of slots/pole; armature N° of layers, N° of slots/(pole×phase), coil pitch), as like as the air-gap core geometry (air-gap and slot opening widths). Some comparisons with FEM simulations have been performed, obtaining very good agreement with the analytical results.

Analytical evaluation of Electromotive Forces in Doubly Slotted Synchronous Machines with Distributed Windings

DI GERLANDO, ANTONINO;FOGLIA, GIOVANNI MARIA;PERINI, ROBERTO
2003-01-01

Abstract

An accurate, analytical evaluation of the e.m.f. waveforms in isotropic synchronous machines is developed, by employing a suited analytical field model. To this aim, the flux linkage of each armature coil is evaluated, as a function of time and rotor position, subsequently obtaining the phase flux linkage by suitably summing the coil contributions: the method, for now limited to unsaturated conditions, takes into account the actual winding features (field N° of slots/pole; armature N° of layers, N° of slots/(pole×phase), coil pitch), as like as the air-gap core geometry (air-gap and slot opening widths). Some comparisons with FEM simulations have been performed, obtaining very good agreement with the analytical results.
Proc. International Symposium on Electromagnetic Fields in Electrical Engineering (ISEF) 2003
8643505617
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/242142
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