Influence of the welding process on the magnetic properties of a slot-less permanent magnet synchronous machine stator core

Author

Krings, Andreas ; Nategh, Shafigh ; Wallmark, Oskar ; Soulard, Juliette

Author_Institution

Lab. of Electr. Energy Conversion (E2C), R. Inst. of Technol. (KTH), Stockholm, Sweden

fYear

2012

fDate

2-5 Sept. 2012

Firstpage

1333

Lastpage

1338

Abstract

In this paper, the influence of the welding process during the manufacturing of small, slot-less permanent magnet synchronous machines (PMSMs) is studied. The focus lies on the change of the magnetic properties and the iron losses in thin, high quality Si-alloyed electrical steel sheets (NO 20). It is shown that the welding process changes the magnetic material properties significantly and increases the specific iron losses. Experimental results are provided for magnetic flux densities up to 1.3T and frequencies in the range of 0.1Hz to 200 Hz.

Keywords

loss measurement; magnetic flux; magnetic leakage; magnetic materials; magnetic variables measurement; permanent magnet machines; stators; steel; synchronous machines; welding; PMSM; high quality silicon-alloyed electrical steel sheets; iron losses; loss measurement; magnetic flux densities; magnetic material properties; slot-less permanent magnet synchronous machine stator core; welding process; Iron; Loss measurement; Magnetic cores; Magnetic hysteresis; Stator cores; Welding; Windings; Iron alloys; loss measurement; magnetic hysteresis; magnetic losses; magnetic materials; permanent magnet machines; slot-less machines;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2012 XXth International Conference on

Conference_Location

Marseille

Print_ISBN

978-1-4673-0143-5

Electronic_ISBN

978-1-4673-0141-1

Type

conf

DOI

10.1109/ICElMach.2012.6350050

Filename

6350050