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Induction motors with copper rotor: a new opportunity for increasing motor efficiency

International Journal of Electrical and Computer Engineering (IJECE) · Vol. 13 No. 3 (2023)

DOI
10.11591/ijece.v13i3.pp2409-2418
ISSN
2722-2578, 2088-8708
Published
2023-06-01
Publisher
Institute of Advanced Engineering and Science
License
creativecommons.org/licenses/by-sa/4.0

Abstract

The copper rotor induction motor (CURIM) was recently introduced because it has lower rotor fusion losses than the aluminum rotor (ALRIM). Furthermore, with CURIM, it is easier to reach IE4 and IE5 efficiency levels. The CURIM is advantageous for compact motors, escalators, and electric vehicle applications. However, CURIMs present slip, power factor, temperature increase, and torque decrease problems that must be analyzed. This study compared the economic feasibility of using CURIM with ALRIM by applying discount techniques. A case study was carried out in a sugar company with a cyclical operation, where 5.5 kW motors will be installed in the intermediate conductors of the mill's feeders. The facility works three shifts between 3 and 6 months. The cost increase (DCI) of CURIM over ALRIM was between 1.1 and 1.5 times. With 3,600 h/year and 4,000 h/year of operation, the DCI greater than 10%, it was found that the payback is more than four years, and the net present value (NPV) grows linearly.

Collaboration network of the authors

21 authors · 58 co-authorship links · 34 across different organisations

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • University of Cienfuegos
  • Universidad de la Costa
  • Universidad Autónoma de Occidente
  • Universidad Simón Bolívar
  • University of Coimbra
  • Universidad Nacional de Río Cuarto
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Percy R. ViegoUniversity of Cienfuegos8
Hernán Hernández HerreraUniversidad Simón Bolívar3
Iván D. LópezUniversidad Autónoma de Occidente2
Fernando J. T. E. FerreiraUniversity of Coimbra2
Vladimir SousaUniversidad de la Costa2
Mario S. QuintanaUniversity of Cienfuegos2
Hernán HernándezUniversidad Simón Bolívar2
Adrián Bolaño MartínezUniversidad de la Costa2
Isaac Jimenez NavarroUniversidad de la Costa2
Pablo D. DonoloUniversidad Nacional de Río Cuarto2
Eliana Noriega AngaritaUniversidad de la Costa2
Pablo Daniel DonoloAffiliation unknown2
Laura Collazo SolarAffiliation unknown1
Ángel Costa MontielAffiliation unknown1
Miriam Vilaragut LlanesAffiliation unknown1
Abel Curbelo ColinaAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

This record comes from Crossref (what the publisher deposited), because the journal's own OAI-PMH endpoint could not be harvested.

Metadata source: Crossref API (cadangan, berdasarkan ISSN) https://api.crossref.org/journals/2088-8708/works, first harvested 27 Okt 2026, last seen 27 Okt 2026.
Metadata as oai_dc, converted from Crossref 
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"><dc:title>Induction motors with copper rotor: a new opportunity for increasing motor efficiency</dc:title><dc:creator>Viego Felipe, Percy R.</dc:creator><dc:creator>Sousa Santos, Vladimir</dc:creator><dc:creator>Gómez Sarduy, Julio R.</dc:creator><dc:creator>Monteagudo Yanes, José P.</dc:creator><dc:creator>Quispe, Enrique Ciro</dc:creator><dc:description>&lt;jats:p&gt;&amp;lt;p&amp;gt;The copper rotor induction motor (CURIM) was recently introduced because it has lower rotor fusion losses than the aluminum rotor (ALRIM). Furthermore, with CURIM, it is easier to reach IE4 and IE5 efficiency levels. The CURIM is advantageous for compact motors, escalators, and electric vehicle applications. However, CURIMs present slip, power factor, temperature increase, and torque decrease problems that must be analyzed. This study compared the economic feasibility of using CURIM with ALRIM by applying discount techniques. A case study was carried out in a sugar company with a cyclical operation, where 5.5 kW motors will be installed in the intermediate conductors of the mill's feeders. The facility works three shifts between 3 and 6 months. The cost increase (DCI) of CURIM over ALRIM was between 1.1 and 1.5 times. With 3,600 h/year and 4,000 h/year of operation, the DCI greater than 10%, it was found that the payback is more than four years, and the net present value (NPV) grows linearly.&amp;lt;/p&amp;gt;&lt;/jats:p&gt;</dc:description><dc:publisher>Institute of Advanced Engineering and Science</dc:publisher><dc:date>2023-06-01</dc:date><dc:type>info:eu-repo/semantics/article</dc:type><dc:format>application/pdf</dc:format><dc:identifier>https://doi.org/10.11591/ijece.v13i3.pp2409-2418</dc:identifier><dc:identifier>10.11591/ijece.v13i3.pp2409-2418</dc:identifier><dc:source>International Journal of Electrical and Computer Engineering (IJECE); Vol 13 No 3 (2023); 2409</dc:source><dc:source>2722-2578</dc:source><dc:source>2088-8708</dc:source><dc:relation>https://ijece.iaescore.com/index.php/IJECE/article/viewFile/28707/16608</dc:relation><dc:rights>http://creativecommons.org/licenses/by-sa/4.0</dc:rights></oai_dc:dc>