Thermal Prediction of Induction Machines Based on Finite Element and Analytical Methods

Bingjian Li, Amin Mahmoudi, Solmaz Kahourzade, Wen L. Soong, Zhi Cao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Since thermal performance heavily influences the efficiency of electric machines, it is important to predict the temperature rise and distribution in the design and optimisation stages. This paper predicts the thermal performances of a commercial 2.2kW induction motor (IM) at different loads. It includes an analytical model and its verification via an electromagnetic-thermal model using finite-element method. In the proposed equivalent thermal network, forced convective heat transfer coefficients were estimated by empirical correlations. The other parameters, including the thermal resistances between stator windings and stator, between stator and housing frame and between housing frame and ambient air, were determined in DC heating tests. The experimentally obtained thermal model in DC heating tests was verified against the prediction in finite-element analysis software. The temperature rise in the machine was obtained at different loads. This electromagnetic-thermal analysis makes it easier for machine designers to optimise the design of IMs considering their thermal performances.

Original languageEnglish
Title of host publication2022 32nd Australasian Universities Power Engineering Conference, AUPEC 2022
PublisherInstitute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9798350339567
DOIs
Publication statusPublished - 21 Aug 2023
Event32nd Australasian Universities Power Engineering Conference, AUPEC 2022 - Adelaide, Australia
Duration: 26 Sept 202228 Sept 2022

Publication series

Name2022 32nd Australasian Universities Power Engineering Conference, AUPEC 2022

Conference

Conference32nd Australasian Universities Power Engineering Conference, AUPEC 2022
Country/TerritoryAustralia
CityAdelaide
Period26/09/2228/09/22

Keywords

  • analytical methods
  • electromagnetic fields
  • finite element method
  • thermal analysis

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