NDLI: Magnetic flux distribution between rotor and shaft in two-pole induction machines with axial cooling vents

Content Provider	IEEE Xplore Digital Library
Author	Reinlein, M. Hubert, T. Kremser, A. Bauer, T.
Copyright Year	2015
Description	Author affiliation: Electr. Design PD LD P R&D213, Siemens AG, Nuremberg, Germany (Bauer, T.) \|\| Energie Campus Nurnberg, Tech. Hochschule Nurnberg, Nuremberg, Germany (Reinlein, M.; Hubert, T.; Kremser, A.)
Abstract	In two-pole Induction Machines the shaft leads to a fictitious increase of the inner yoke in the rotor. This effect is influenced by axial cooling vents in the rotor. Pre-existing analytical calculation methods estimate the magnetic voltage drop in the rotor for only one path of the magnetic flux. This is done by simplified boundary conditions and leads to inaccurate results. In this paper a semi-analytical method is introduced. Therefore the branch current method is used and the solution of the nonlinear equation system is disclosed. The results of the analytical calculations are validated by Finite Element Analysis. The involvement of the semi-analytical calculation in the magnetic circuit is illustrated. Further refinement steps are described. Applications for the semi-analytical calculation method are introduced for machine design considerations.
Starting Page	485
Ending Page	490
File Size	720910
Page Count	6
File Format	PDF
ISBN	9781467372039
ISSN	21555532
e-ISBN	9781479999781
DOI	10.1109/PowerEng.2015.7266365
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-11
Publisher Place	Latvia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic flux Cooling modeling flux distribution Rotors Shafts shaft flux Vents axial cooling vents two-pole machine Magnetic circuits Saturation magnetization Induction Machine
Content Type	Text
Resource Type	Article

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