Application of Nonlinear Complex Polyharmonic Finite-Element Models of High-Speed Solid-Rotor Induction Motors

Autor:	Tomasz Garbiec, Mariusz Jagieła, Marcin Kulik
Rok vydání:	2020
Předmět:	Physics Coupling Rotor (electric) Topology Finite element method Electronic Optical and Magnetic Materials law.invention Magnetic field Nonlinear system law Harmonic Eddy current Electrical and Electronic Engineering Induction motor
Zdroj:	IEEE Transactions on Magnetics. 56:1-4
ISSN:	1941-0069 0018-9464
DOI:	10.1109/tmag.2019.2953987
Popis:	In this article, the application of a nonlinear complex De Gersem-type polyharmonic finite-element (FE) model in the steady-state analysis of three-phase solid-iron rotor induction motors is discussed. Effective magnetic permeability, dependent on the fundamental time harmonic of the magnetic field, is used for the representation of the magnetic saturation effects. A new coupling scheme for the air-gap mesh nodes is proposed in order to make the model more time-competitive with the time-stepping model in cases where the number of air-gap nodes must be high. By means of comparative analysis of computed electromagnetic torque and harmonic losses, it is shown that omitting some nodes at the interface boundary results in the reduction of the execution time by a factor of 100 with only a slight loss of accuracy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5be7cb747eb914b055bb812254167d6c https://doi.org/10.1109/tmag.2019.2953987 Zobrazit plný text záznamu