3D Analysis of Magnet Eddy Current Losses in High-Power Axial Flux Machines

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00389582" target="_blank" >RIV/68407700:21230/25:00389582 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/TAES.2025.3529801" target="_blank" >https://doi.org/10.1109/TAES.2025.3529801</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TAES.2025.3529801" target="_blank" >10.1109/TAES.2025.3529801</a>

Jazyk výsledku

angličtina

Název v původním jazyce

3D Analysis of Magnet Eddy Current Losses in High-Power Axial Flux Machines

Popis výsledku v původním jazyce

This article presents a 3D analytical method to model induced eddy currents in the surface-mounted permanent magnets of axial flux machines. High-power and high-speed permanent magnet machines with enhanced power density are used for electrical power and propulsion systems in aerospace and airplane applications. The magnet eddy current losses are mainly caused by the time harmonics of the inverter and converter, which cause the overheating and demagnetization of magnets. A sophisticated computational model is developed to calculate induced eddy currents in the permanent magnets. The radial and circumferential magnet segmentations are considered in the 3D analytical method, which are used for magnet loss reduction. Two high-speed and high-power axial flux permanent magnet machines with distributed winding are chosen to analyze eddy currents and simulations of the magnet losses. The reaction fields of induced eddy current in the permanent magnets are also considered in 3D analytical modeling. The analytical calculation results of magnet losses are compared with the 3D finite element method to evaluate the accuracy.

Název v anglickém jazyce

3D Analysis of Magnet Eddy Current Losses in High-Power Axial Flux Machines

Popis výsledku anglicky

This article presents a 3D analytical method to model induced eddy currents in the surface-mounted permanent magnets of axial flux machines. High-power and high-speed permanent magnet machines with enhanced power density are used for electrical power and propulsion systems in aerospace and airplane applications. The magnet eddy current losses are mainly caused by the time harmonics of the inverter and converter, which cause the overheating and demagnetization of magnets. A sophisticated computational model is developed to calculate induced eddy currents in the permanent magnets. The radial and circumferential magnet segmentations are considered in the 3D analytical method, which are used for magnet loss reduction. Two high-speed and high-power axial flux permanent magnet machines with distributed winding are chosen to analyze eddy currents and simulations of the magnet losses. The reaction fields of induced eddy current in the permanent magnets are also considered in 3D analytical modeling. The analytical calculation results of magnet losses are compared with the 3D finite element method to evaluate the accuracy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Aerospace and Electronic Systems

ISSN

0018-9251

e-ISSN

1557-9603

Svazek periodika

61

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

6647-6656

Kód UT WoS článku

001506745600041

EID výsledku v databázi Scopus

2-s2.0-85215378699