Improved analytical calculation of axial AMB by means of fringing estimation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F20%3APU136471" target="_blank" >RIV/00216305:26220/20:PU136471 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/9270734" target="_blank" >https://ieeexplore.ieee.org/document/9270734</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICEM49940.2020.9270734" target="_blank" >10.1109/ICEM49940.2020.9270734</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improved analytical calculation of axial AMB by means of fringing estimation

Popis výsledku v původním jazyce

In the engineering practice, active magnetic bearing (AMB) systems are designed to develop the force to suppress external forces acting on rotor and to support the entire rotor system. To analytically compute the force with an accuracy high enough to avoid time-consuming finite element method (FEM) optimisation, the accurate magnetic model has to be developed. According to the general theory of magnetic circuits, the model of iron is accurately modelled below the saturation limit. Lower accuracy is obtained in air-gap permanence calculation wherein linear theory, a fringing flux is usually neglected. In this paper fringing flux contribution to the air-gap permanence is studied. The fringing is modelled in FEM software for various geometry configurations focusing on the general solution without geometry dependencies. Primarily is examined the traditional shape of thrust AMB but the results can be applied on similar geometries as well as to geometries beyond the scope of axial AMB geometry. The result of the paper is a set of equations used to model fringing around air-gap.

Název v anglickém jazyce

Improved analytical calculation of axial AMB by means of fringing estimation

Popis výsledku anglicky

In the engineering practice, active magnetic bearing (AMB) systems are designed to develop the force to suppress external forces acting on rotor and to support the entire rotor system. To analytically compute the force with an accuracy high enough to avoid time-consuming finite element method (FEM) optimisation, the accurate magnetic model has to be developed. According to the general theory of magnetic circuits, the model of iron is accurately modelled below the saturation limit. Lower accuracy is obtained in air-gap permanence calculation wherein linear theory, a fringing flux is usually neglected. In this paper fringing flux contribution to the air-gap permanence is studied. The fringing is modelled in FEM software for various geometry configurations focusing on the general solution without geometry dependencies. Primarily is examined the traditional shape of thrust AMB but the results can be applied on similar geometries as well as to geometries beyond the scope of axial AMB geometry. The result of the paper is a set of equations used to model fringing around air-gap.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

USB Proceedings2020 International Conference onElectrical Machines (ICEM)

ISBN

978-1-7281-9945-0

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

177-182

Název nakladatele

IEEE

Místo vydání

New York

Místo konání akce

Virtual conference

Datum konání akce

23. 8. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000635705300027