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Lookup NU author(s): Dr Mehmet KulanORCiD, Professor Nick BakerORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2013 IEEE.Electric machines are crucial in modern industries, playing a substantial role in power generation, manufacturing, transportation, and renewable energy. Consequently, extensive research is focused on enhancing their performance, making it essential to understand their thermal behavior for effective modifications and improvements. While existing literature covers thermal effects in electric machines, the specific analysis of thermal conductivity in stator windings, a major contributor to energy losses, has remained significantly underexplored due to the complicated geometrical, material, and manufacturing factors. This paper presents a comprehensive review of methods and challenges related to characterizing the equivalent thermal conductivity of stator windings, categorizing them into analytical, numerical, and experimental approaches, with three sample levels (domain, motorette, and prototype). Furthermore, the paper introduces concepts of anisotropy, components, and available winding technologies to establish a solid foundation before discussing these methods. This review highlights the strengths and limitations of each method, emphasizing their needs and constraints to advance high-performance electric machines, and ultimately contributing to the evolution of more reliable and efficient electric machines.
Author(s): Sarma N, Kulan MC, Baker NJ
Publication type: Review
Publication status: Published
Journal: IEEE Access
Year: 2025
Volume: 13
Pages: 152493-152518
Online publication date: 01/09/2025
Acceptance date: 20/08/2025
ISSN (electronic): 2169-3536
Publisher: Institute of Electrical and Electronics Engineers Inc.
URL: https://doi.org/10.1109/ACCESS.2025.3604580
DOI: 10.1109/ACCESS.2025.3604580
