Reduction of Winding AC Losses by Accurate Conductor Placement in High Frequency Electrical Machines

Anuvav Bardalai; David Gerada; Dmitry Golovanov; Zeyuan Xu; Xiaochen Zhang; Jing Li; He Zhang; Chris Gerada

doi:10.1109/TIA.2019.2947552

Reduction of Winding AC Losses by Accurate Conductor Placement in High Frequency Electrical Machines

Anuvav Bardalai, David Gerada, Dmitry Golovanov, Zeyuan Xu, Xiaochen Zhang, Jing Li, He Zhang, Chris Gerada

Research output: Journal Publication › Article › peer-review

56 Citations (Scopus)

Abstract

In the design of electrical machines, the increase in power density has become one of the main research themes. With most of the power loss in high power density electrical machines often being generated in the stator winding assembly, it is necessary to reduce these losses. The effects of strands and bundle positions in the slot on the ac losses in the winding are often overlooked. Taking as a case-study an existing high-frequency machine, this article analyzes and provides an in-depth insight into such effects. Exploiting the rapid advancements in precision three-dimensional printing, it is found and experimentally verified that by controlling the position of the conductors within the top of the slot the ac losses can be markedly reduced.

Original language	English
Article number	8869801
Pages (from-to)	183-193
Number of pages	11
Journal	IEEE Transactions on Industry Applications
Volume	56
Issue number	1
DOIs	https://doi.org/10.1109/TIA.2019.2947552
Publication status	Published - 1 Jan 2020

Keywords

AC copper loss
circulating currents
conductors
eddy current
high power density
optimization
permanent magnet machines
proximity effect
transportation
windings

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TIA.2019.2947552

Cite this

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abstract = "In the design of electrical machines, the increase in power density has become one of the main research themes. With most of the power loss in high power density electrical machines often being generated in the stator winding assembly, it is necessary to reduce these losses. The effects of strands and bundle positions in the slot on the ac losses in the winding are often overlooked. Taking as a case-study an existing high-frequency machine, this article analyzes and provides an in-depth insight into such effects. Exploiting the rapid advancements in precision three-dimensional printing, it is found and experimentally verified that by controlling the position of the conductors within the top of the slot the ac losses can be markedly reduced.",

keywords = "AC copper loss, circulating currents, conductors, eddy current, high power density, optimization, permanent magnet machines, proximity effect, transportation, windings",

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AU - Zhang, Xiaochen

AU - Li, Jing

AU - Zhang, He

AU - Gerada, Chris

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KW - circulating currents

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KW - high power density

KW - optimization

KW - permanent magnet machines

KW - proximity effect

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Reduction of Winding AC Losses by Accurate Conductor Placement in High Frequency Electrical Machines

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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