Two-pulse magnetization process of the NdFeB multi-pole ring magnet for BLDC motors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F20%3A00007715" target="_blank" >RIV/46747885:24220/20:00007715 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s00202-020-01003-9" target="_blank" >https://link.springer.com/article/10.1007/s00202-020-01003-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00202-020-01003-9" target="_blank" >10.1007/s00202-020-01003-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Two-pulse magnetization process of the NdFeB multi-pole ring magnet for BLDC motors

Popis výsledku v původním jazyce

The magnetization of rare earth ring magnets forming the rotor of a BLDC or a synchronous motor requires a high level of magnetization field to achieve the desired magnetization pattern. The design of the magnetizing yoke is a compromise between the field strength requirements, the yoke temperature balance and the winding forces. The two-pulse magnetization allows reaching a higher steepness of magnetization at the pole edges and thus higher overall rotor magnetization under these difficult conditions. The magnetization fixture for the double-pulse method was designed and verified by finite element method simulations. A small series (100 pcs) of produced magnets are compared with simulations using external magnetic 3D field scanning. The artifacts (asymmetry of pole magnetization) after the two-pulse magnetization are recalculated onto unbalanced magnetic pull and torque ripple. It is shown that these artifacts do not adversely affect unbalanced magnetic pull and torque ripple, unlike the asymmetries caused by the geometric inaccuracy of the magnetizer, whose impact is crucial.

Název v anglickém jazyce

Two-pulse magnetization process of the NdFeB multi-pole ring magnet for BLDC motors

Popis výsledku anglicky

The magnetization of rare earth ring magnets forming the rotor of a BLDC or a synchronous motor requires a high level of magnetization field to achieve the desired magnetization pattern. The design of the magnetizing yoke is a compromise between the field strength requirements, the yoke temperature balance and the winding forces. The two-pulse magnetization allows reaching a higher steepness of magnetization at the pole edges and thus higher overall rotor magnetization under these difficult conditions. The magnetization fixture for the double-pulse method was designed and verified by finite element method simulations. A small series (100 pcs) of produced magnets are compared with simulations using external magnetic 3D field scanning. The artifacts (asymmetry of pole magnetization) after the two-pulse magnetization are recalculated onto unbalanced magnetic pull and torque ripple. It is shown that these artifacts do not adversely affect unbalanced magnetic pull and torque ripple, unlike the asymmetries caused by the geometric inaccuracy of the magnetizer, whose impact is crucial.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/EF16_025%2F0007293" target="_blank" >EF16_025/0007293: Modulární platforma pro autonomní podvozky specializovaných elektrovozidel pro dopravu nákladu a zařízení</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Electrical Engineering

ISSN

0948-7921

e-ISSN

—

Svazek periodika

102

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

2315-2323

Kód UT WoS článku

000539945800002

EID výsledku v databázi Scopus

2-s2.0-85086471502