Magnetic field and rotor impedance analysis of solid rotor induction motors using the multilayer analytical method

IF 1.5 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Hao Xu, Jinghong Zhao, Sinian Yan, Hanming Wang
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引用次数: 0

Abstract

This paper proposes a multilayer analytical model for calculating the magnetic field and equivalent circuit parameters of solid rotor induction motors (SRIM), and the BH curve of rotor material is used to consider the influence of saturation effect of solid rotor. The equivalent circuit of SRIM based on surface impedance theory can fully consider the influence of rotor material. Then, the magnetic vector potential in the rotor is solved in the three-dimensional electromagnetic field, and the rotor is segmented along the axial direction to obtain the end coefficient considering the axial non-linear effect of the rotor. The air gap magnetic field distribution, rotor loss, rotor impedance and torque were analysed by finite element simulation, and the accuracy of the multilayer analytical model and end coefficient was verified. Compared with the finite element method, the analytical method proposed in this paper is time saving, resulting in that it is suitable for the optimised design. Finally, an experimental prototype is developed and tested, confirming the accuracy of both the finite element simulation and the analytical model.

Abstract Image

用多层分析法分析固体转子感应电动机的磁场和转子阻抗
本文提出了计算固体转子感应电动机(SRIM)磁场和等效电路参数的多层解析模型,并利用转子材料的B-H曲线考虑了固体转子饱和效应的影响。基于表面阻抗理论的SRIM等效电路可以充分考虑转子材料的影响。然后,在三维电磁场中求解转子内的磁矢量势,并考虑转子轴向非线性效应,沿轴向对转子进行分段,得到端面系数;通过有限元仿真分析了气隙磁场分布、转子损耗、转子阻抗和转矩,验证了多层解析模型和端部系数的准确性。与有限元法相比,本文提出的解析法节省了时间,适用于优化设计。最后,开发了一个实验样机并进行了测试,验证了有限元模拟和分析模型的准确性。
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来源期刊
Iet Electric Power Applications
Iet Electric Power Applications 工程技术-工程:电子与电气
CiteScore
4.80
自引率
5.90%
发文量
104
审稿时长
3 months
期刊介绍: IET Electric Power Applications publishes papers of a high technical standard with a suitable balance of practice and theory. The scope covers a wide range of applications and apparatus in the power field. In addition to papers focussing on the design and development of electrical equipment, papers relying on analysis are also sought, provided that the arguments are conveyed succinctly and the conclusions are clear. The scope of the journal includes the following: The design and analysis of motors and generators of all sizes Rotating electrical machines Linear machines Actuators Power transformers Railway traction machines and drives Variable speed drives Machines and drives for electrically powered vehicles Industrial and non-industrial applications and processes Current Special Issue. Call for papers: Progress in Electric Machines, Power Converters and their Control for Wave Energy Generation - https://digital-library.theiet.org/files/IET_EPA_CFP_PEMPCCWEG.pdf
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