The impact of rotating field on core loss estimation in electrical machine laminations

Author

Alatawneh, Natheer ; Pillay, Pragasen

fYear

2012

fDate

15-20 Sept. 2012

Firstpage

2696

Lastpage

2703

Abstract

An investigation and analysis of core losses in rotating AC machines shows that the stator is subjected to different types of flux density including pulsating and rotating. The rotating flux can be elliptical or circular. This paper describes the influence of different flux patterns on core loss estimation. Three different machines are simulated to calculate the zones of rotating flux density in the stator cores of these machines. Experimental tests are executed using a new magnetizing circuit based on an electromagnetic Halbach array which is able to generate different types of flux patterns with different frequencies. Furthermore, the percentage error made by assuming all flux is pulsating is calculated.

Keywords

AC machines; electromagnetic fields; laminations; magnetic circuits; magnetic cores; stators; core loss estimation; electrical machine lamination; electromagnetic Halbach array; magnetizing circuit; pulsating flux; rotating AC machine; rotating field impact; rotating flux density; stator core; Core loss; Estimation; Induction machines; Magnetic field measurement; Materials; Stator cores; Finite element analysis; Rotational core losses; Two-dimensional measurements; electrical machines; electrical steel; magnetic materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2012 IEEE

Conference_Location

Raleigh, NC

Print_ISBN

978-1-4673-0802-1

Electronic_ISBN

978-1-4673-0801-4

Type

conf

DOI

10.1109/ECCE.2012.6342535

Filename

6342535