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Power Factor Improvement and Dynamic Performance of an Induction Machine With a Novel Concept of a Converter-Fed Rotor
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion. (Electrical Machines and Drives Laboratory)ORCID iD: 0000-0003-2398-8528
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.
2015 (English)In: IEEE transactions on energy conversion, ISSN 0885-8969, E-ISSN 1558-0059, Vol. PP, no 99, 1-7 p.Article in journal (Refereed) Epub ahead of print
Abstract [en]

This paper investigates an induction machine with a novel concept of the rotor fed by a converter. The stator is Y-connected and directly connected to the grid, while the rotor windings are open-ended and fed by a back-to-back converter with a floating capacitor. Power factor and efficiency improvements of the induction motor are studied with different settings of phase-shift angle between the two converters. Moreover, the dynamic performance of the induction machine is explored in MATLAB/Simulink and verified experimentally on a 1.8-kW induction machine in the laboratory. The result shows good agreement between simulation and experiment. At a constant speed, variable load operation of the induction machine is obtained by setting the frequency of the rotor voltage.

Place, publisher, year, edition, pages
IEEE , 2015. Vol. PP, no 99, 1-7 p.
Keyword [en]
Asynchronous machinery, Electric power factor, Induction motors, MATLAB, Phase shift, Phase shifters, Power converters, Back-to-back converter, Dynamic performance, Efficiency improvement, Floating capacitor, Induction machines, MATLAB /simulink, Power factor improvement, Variable loads
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-185013DOI: 10.1109/TEC.2015.2505082ISI: 000377106100017ScopusID: 2-s2.0-84949980797OAI: oai:DiVA.org:kth-185013DiVA: diva2:917917
Note

QP 201604

Available from: 2016-04-08 Created: 2016-04-08 Last updated: 2016-06-28Bibliographically approved

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