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Performance Improvement of Grid-Connected Induction Motors through an Auxiliary Winding Set

descriptionPublicationkeyboard_double_arrow_right Article , Journal , Other literature type 13 Apr 2021 Italy Publisher:MDPI AGJournal:Energies, volume 14, page 2,178 (eissn: 1996-1073,

Authors: Tornello, Luigi Danilo; Foti, Salvatore; Cacciato, Mario; Testa, Antonio; Scelba, Giacomo; De Caro, Salvatore; Scarcella, Giuseppe; +1 Authors

doi: 10.3390/en14082178

handle: 11570/3214286 , 11570/3240453 , 20.500.11769/507263

Performance Improvement of Grid-Connected Induction Motors through an Auxiliary Winding Set

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Abstract

A technique to improve the performance of grid-connected induction motors by exploiting an auxiliary winding set is proposed in this paper. This auxiliary winding features the same distribution of the main winding, although with a reduced number of turns and it is fed by an inverter a fraction of the power in comparison with the rated size of the induction motor. As shown in the paper, through the auxiliary winding, it is possible to set the machine power factor, increasing the efficiency of the power conversion system and mitigating speed oscillations due to torque disturbances. A mitigation of the grid current peaks due to motor start-up is obtainable. First, the proposed technique is theoretically introduced, then a feasibility assessment is accomplished by simulations.

Country

Italy

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Keywords

Technology, dual stator winding machines, T, Dual stator winding machines; Efficiency; Harmonic compensation; Induction machines; Power factor correction; Pulse width modulation invert-ers, efficiency, power factor correction; efficiency; induction machines; pulse width modulation inverters; dual stator winding machines; harmonic compensation, harmonic compensation, pulse width modulation inverters, induction machines, power factor correction

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