Optimal inductor winding geometries for minimizing winding loss in gapped inductor designs

Wai Keung Mo, Kasper Paasch, Michael Sachmann

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

This paper summarizes geometrical effects on inductor winding loss based on fixed and variable wire diameter methods as well as core gap effects. Relevant AC and DC winding resistance equations are derived and an effective inductor design method is given to consider the ratio of alternating to direct current ΔI/I av Iav and ratio of skin depth to wire radius δ/r . The core gap effect on the ac winding resistance can be minimized by increasing the distance far away from the gap, however the dc winding resistance will increase. Hence the optimal distance results in the minimum total winding resistance. Finally, a new concept of a two step core gap solution is verified by FEA simulation showing the further winding loss improvement by the smart design method of core gap geometries.

Original languageEnglish
Title of host publicationProceedings of the 19th European Conference on Power Electronics and Applications
Number of pages6
PublisherIEEE
Publication date2017
Article number8098961
ISBN (Print)978-1-5386-0530-1
ISBN (Electronic)978-90-75815-27-6, 978-90-75815-26-9
DOIs
Publication statusPublished - 2017
Event19th European Conference on Power Electronics and Applications - Warshawa, Poland
Duration: 12. Sept 201714. Sept 2017
Conference number: 19
http://www.epe17.com

Conference

Conference19th European Conference on Power Electronics and Applications
Number19
Country/TerritoryPoland
CityWarshawa
Period12/09/201714/09/2017
Internet address

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