A General Airgap Permeance Model Applicable to Integer and Fractional Slot Permanent Magnet AC Machines

S. O. Edhah, J. Y. Alsawalhi

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

Abstract

The airgap permeance function plays an important role in rotating electrical machines, and permanent magnet AC machines in particular. It allows the prediction of the spatial airgap flux density distribution, which in return enables calculation of important performance metrics such as torque, phase voltages and core loss. This work studies and compares different analytical airgap permeance functions and then proposes a modified permeance function which is shown to be more general and applicable to machines with both integer and fractional slot/pole combination. The analytical results are benchmarked against Finite Element Analysis models to check for their accuracy, with good matching results reported using the proposed model for three different permanent magnet AC machines configurations.

Original languageBritish English
Title of host publication2022 International Conference on Electrical Machines, ICEM 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages232-238
Number of pages7
ISBN (Electronic)9781665414326
DOIs
StatePublished - 2022
Event2022 International Conference on Electrical Machines, ICEM 2022 - Valencia, Spain
Duration: 5 Sep 20228 Sep 2022

Publication series

Name2022 International Conference on Electrical Machines, ICEM 2022

Conference

Conference2022 International Conference on Electrical Machines, ICEM 2022
Country/TerritorySpain
CityValencia
Period5/09/228/09/22

Keywords

  • AC machines
  • Airgap
  • Analytical models
  • Permanent magnet machines
  • Rotating machines
  • Rotors
  • Stators

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