Winding Losses in Coreless Axial Flux PM Machines with Wave and Spiral PCB Stator Topologies

Yaser Chulaee, Donovin Lewis, Greg Heins, Dean Patterson, Dan M. Ionel

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

4 Scopus citations

Abstract

Printed circuit board (PCB) stators in coreless axial flux permanent magnet (AFPM) machines have been proposed, designed and studied for utilization in multiple industries due to their design flexibility and reduction of manufacturing costs, volume, and weight compared to conventional stators. This paper investigated loss mechanisms and multiple methods of approximating winding supplementary losses in PCB stators with example wave and spiral winding topologies for a dual rotor, single stator configuration using 3D FEA models with a 15 hour runtime. The effect of rotor magnet placement, end windings, and active conductor path on eddy current is studied for both topologies. A hybrid FEA/analytical approach is proposed for the approximation of circulating current within layers of a planar PCB conductor using the equivalent circuit model. A coreless AFPM motor prototype is created and its power losses tested using multiple PCB stators with the findings being comparable to hybrid analytical methods results.

Original languageEnglish
Title of host publication2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
ISBN (Electronic)9781728193878
DOIs
StatePublished - 2022
Event2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 - Detroit, United States
Duration: Oct 9 2022Oct 13 2022

Publication series

Name2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

Conference

Conference2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Country/TerritoryUnited States
CityDetroit
Period10/9/2210/13/22

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

Keywords

  • Axial-flux
  • FEA
  • PCB stator
  • circulating current
  • coreless machines
  • eddy current
  • permanent-magnet machines
  • winding losses

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization

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