Modeling of a C-frame reluctance-enhanced shaded-pole induction motor—study of shaded-coil design

Čorović, Selma (author), Miljavec, Damijan (author)

Shaded-pole induction motors are the most frequently used single-phase electric motors in low power applications. Their main advantages are reliability, robustness, low level of noise and vibration, relatively simple manufacturing technology and cost effectiveness. These motors are the driving units of choice in the applications where the variable speed and high starting torque are not of utmost importance, in spite of the fact that they are characterized by inferior efficiency, power factor and starting torque compared to their single-phase counterparts. They are equipped with auxiliary massive copper coils at the stator side, which makes them self-starting, and strongly influence the motor characteristics. This study deals with the numerical modeling and analysis of a shaded-pole induction motor with a C-shaped stator frame. The analysis was performed using 2D finite element-based transient magnetic numerical modeling. The primary objective was to investigate the influence of the number and size of the auxiliary shaded coils on the output torque speed characteristic. We explored the possibility of reducing the amount of material used while preserving the crucial/nominal properties of the motor. Our results have important implications in manufacturing simplification, which may be important for the eco-design of small motors and actuators, including their recycling and/or reuse process.

• Language: English
• Keywords: shaded pole induction motor, single-phase induction motor, finite element method, numerical modeling
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FE - Faculty of Electrical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: 19 str.
• Numbering: Vol. 14, issue 8, [article no.] 368
• PID: 20.500.12556/RUL-171084
• UDC: 621.313/.314
• ISSN on article: 2076-0825
• DOI: 10.3390/act14080368
• COBISS.SI-ID: 243816707
• Publication date in RUL: 01.08.2025

Record is a part of a journal

• Title: Actuators
• Shortened title: Actuators
• Publisher: MDPI
• ISSN: 2076-0825
• COBISS.SI-ID: 522943513

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: enofazni asinhronski motor z zasenčenimi poli, enofazni asinhronski motor, metoda končnih elementov, numerično modeliranje

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: L2-50084
• Name: Celostno načrtovanje in eksperimentalno modeliranje električnih motorjev

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P2-0258
• Name: Pretvorniki električne energije in regulirani pogoni