Three-dimensional Analytical Model of Eddy Current Loss of Permanent Magnet in High Frequency Axial Flux Permanent Magnet Machine

被引：0
|
作者：
Tong W. [1 ]
Li J. [1 ]
Cao B. [1 ]
Wu S. [1 ]
机构：
[1] National Engineering Research Center for Rare-earth Permanent Magnet Machines, Shenyang University of Technology, Shenyang
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2021年 / 41卷 / 06期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
Accurate subdomain model; Analytical model; Axial flux permanent magnet machine; Eddy current loss;
D O I：
10.13334/j.0258-8013.pcsee.201601
中图分类号：
学科分类号：
摘要：
To solve the problem that the existing two-dimensional analytical model has insufficient accuracy in calculating the eddy current loss of permanent magnets (PMs) in axial flux PM machines, a new three-dimensional analytical model which can accurately calculate the eddy current loss of PMs of this kind of machine is proposed in this paper. By using the accurate subdomain method and the resistance network model, the stator slotting, stator harmonic current, eddy current reaction and eddy current three-dimensional distribution can be considered simultaneously. The distribution of no-load and armature magnetic field calculated by the accurate subdomain model is verified by the finite element method, and the surface eddy current density and eddy current loss of the PM calculated by the analytical model are verified under the ideal no-load condition. The influence of eddy current reaction on the eddy current loss of PM under high frequency operation is analyzed. Finally, a 7kW, 4000rpm axial flux PM machine was tested for no-load pulse width modulated (PWM) power supply and no-load sinusoidal wave power supply. The eddy current loss of PMs caused by PWM harmonic current was obtained. The experimental results and finite element results were compared with the analytical results to verify the correctness of the analytical model. © 2021 Chin. Soc. for Elec. Eng.
引用
收藏
页码：1992 / 2001
页数：9
相关论文
共 21 条
  • [1] LIU Xiangdong, MA Tongkai, ZHAO Jing, An overview on research progress of coreless stator axial flux permanent magnet synchronous motor, Proceedings of the CSEE, 40, 1, pp. 257-273, (2020)
  • [2] GENG Zhen, LI Guangyou, Overview of axial flux permanent-magnet machine, Small & Special Electrical Machines, 43, 9, pp. 88-93, (2015)
  • [3] ZHU Longfei, ZHU Jianguo, TONG Wenming, Et al., Analytical method of no-load iron losses of axial flux amorphous alloy permanent magnet motor, Proceedings of the CSEE, 37, 3, pp. 923-930, (2017)
  • [4] ZHAO Jilong, QUAN Xiaowei, LIN Mingyao, Design and analysis of a double-rotor hybrid excited axial switched-flux permanent magnet machine, Proceedings of the CSEE, 40, 24, pp. 7860-7868, (2020)
  • [5] WROBEL R, MELLOR P H, POPESCU M, Et al., Power loss analysis in thermal design of permanent magnet machines-a review, IEEE Transactions on Industry Applications, 52, 2, pp. 1359-1368, (2016)
  • [6] KONG Xiaoguang, WANG Fengxiang, XING Junqiang, Losses calculation and temperature field analysis of high speed permanent magnet machines, Transactions of China Electrotechnical Society, 27, 9, pp. 166-173, (2012)
  • [7] LI Jian, CHOI D W, CHO C H, Et al., Eddy-current calculation of solid components in fractional slot axial flux permanent magnet synchronous machines, IEEE Transactions on Magnetics, 47, 10, pp. 4254-4257, (2011)
  • [8] YANG Xu, PATTERSON D, HUDGINS J, Et al., FEA estimation and experimental validation of solid rotor and magnet eddy current loss in single-sided axial flux permanent magnet machines, Proceedings of the 2013 IEEE Energy Conversion Congress and Exposition, pp. 3202-3209, (2013)
  • [9] SERGEANT P, VANSOMPEL H, HEMEIDA A, Et al., A computationally efficient method to determine iron and magnet losses in VSI-PWM fed axial flux permanent magnet synchronous machines, IEEE Transactions on Magnetics, 50, 8, (2014)
  • [10] PYRHONEN J, JUSSILA H, ALEXANDROVA Y, Et al., Harmonic loss calculation in rotor surface permanent magnets-new analytic approach, IEEE Transactions on Magnetics, 48, 8, pp. 2358-2366, (2012)
123