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

被引：6
|
作者：
Garbiec, T. [1 ]
Jagiela, M. [1 ]
Kulik, M. [1 ]
机构：
[1] Opole Univ Technol, Fac Elect Engn Automat Control & Comp Sci, PL-45758 Opole, Poland
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2020年 / 56卷 / 04期
关键词：
AC machines; eddy currents; finite-element (FE) method; Fourier series; SPACE HARMONICS;
D O I：
10.1109/TMAG.2019.2953987
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
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页数：4
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