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Información tecnológica

On-line version ISSN 0718-0764

Abstract

MARTINEZ, Fernando  and  MORENAS, Javier de las. Rotor optimization of a flux switching heteropolar inductor alternator. Inf. tecnol. [online]. 2020, vol.31, n.2, pp.239-252. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642020000200239.

The stator core of an electric machine for teaching applications, with 12 teeth and open slots, is used and a rotor, of sintered magnetic material, is constructed to configure a flux switching three-phase heteropolar inductor alternator. The optimization of the rotor design consists of obtaining the best number of teeth that provides a waveform of the output voltage closest to a sinusoidal function and with a higher effective value (rms). An analytical model is presented, allowing to establish a comparison of the values of the permeances, depending on the number of teeth of the rotor. Results are compared with simulation values, using a finite element program. The conclusion reached is that seven is the ideal number of teeth and slots of the rotor.

Keywords : heteropolar inductor alternator; flux switching alternator; high frequency generator; finite element analysis.

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