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Analytical Calculation of the Magnetic Field Distribution in a Linear and Rotary Machine with an Orthogonally Arrayed Permanent Magnet

Author

Listed:
  • Lei Xu

    (Engineering Research Center for Motion Control of Ministry of Education, Southeast University, Nanjing 210096, China)

  • Mingyao Lin

    (Engineering Research Center for Motion Control of Ministry of Education, Southeast University, Nanjing 210096, China)

  • Xinghe Fu

    (Engineering Research Center for Motion Control of Ministry of Education, Southeast University, Nanjing 210096, China)

  • Kai Liu

    (Engineering Research Center for Motion Control of Ministry of Education, Southeast University, Nanjing 210096, China)

  • Baocheng Guo

    (Engineering Research Center for Motion Control of Ministry of Education, Southeast University, Nanjing 210096, China)

Abstract

In this paper, an analytical model is proposed to analyze and predict the characteristics of a double stator linear and rotary permanent magnet machine (DSLRPMM). In order to simplify the magnetic field calculation, the DSLRPMM is cut along the axial direction ( z direction) and transferred into a planar one. Hence, an analytical model of the machine considered the orthogonal effect (OE) is proposed based on the combined solution of Maxwell’s equation, conformal mapping, and equivalent magnetic circuit model (EMCM). The magnetic field distributions of the DSLRPMM are calculated with and without considering the OE, and some important electromagnetic parameters, including the back electromotive force (EMF), detent force, cogging torque, and output torque and thrust, are also predicted and compared to the 3D finite element analysis (FEA). The results show that the errors between the proposed analytical model and the 3D FEA results are less than 0.2% and even less than 0.1% for certain parameters, that is, the results obtained from the proposed analytical model agree well with that of the FEA. Moreover, the analyzed and predicted results are also verified by the experimental results on the prototype of the DSLRPMM.

Suggested Citation

  • Lei Xu & Mingyao Lin & Xinghe Fu & Kai Liu & Baocheng Guo, 2017. "Analytical Calculation of the Magnetic Field Distribution in a Linear and Rotary Machine with an Orthogonally Arrayed Permanent Magnet," Energies, MDPI, vol. 10(4), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:4:p:493-:d:95138
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    References listed on IDEAS

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    1. Yunkai Huang & Baocheng Guo & Ahmed Hemeida & Peter Sergeant, 2016. "Analytical Modeling of Static Eccentricities in Axial Flux Permanent-Magnet Machines with Concentrated Windings," Energies, MDPI, vol. 9(11), pages 1-19, October.
    2. Yanjun Yu & Weiyu Zhang & Yuxin Sun & Peifeng Xu, 2016. "Basic Characteristics and Design of a Novel Hybrid Magnetic Bearing for Wind Turbines," Energies, MDPI, vol. 9(11), pages 1-17, November.
    3. Chengde Tong & Zhiyi Song & Jingang Bai & Jiaqi Liu & Ping Zheng, 2016. "Analytical Investigation of the Magnetic-Field Distribution in an Axial Magnetic-Field-Modulated Brushless Double-Rotor Machine," Energies, MDPI, vol. 9(8), pages 1-23, July.
    4. Ping Zheng & Qian Wu & Jing Zhao & Chengde Tong & Jingang Bai & Quanbin Zhao, 2012. "Performance Analysis and Simulation of a Novel Brushless Double Rotor Machine for Power-Split HEV Applications," Energies, MDPI, vol. 5(1), pages 1-19, January.
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    Cited by:

    1. J. F. Pan & Weiyu Wang & Bo Zhang & Eric Cheng & Jianping Yuan & Li Qiu & Xiaoyu Wu, 2017. "Complimentary Force Allocation Control for a Dual-Mover Linear Switched Reluctance Machine," Energies, MDPI, vol. 11(1), pages 1-17, December.
    2. Ruotong Peng & Tong Zheng & Xing Lu & Xianze Xu & Fengqiu Xu, 2020. "Simulation of a Synchronous Planar Magnetically Levitated Motion System Based on a Real-Time Analytical Force Model," Energies, MDPI, vol. 13(23), pages 1-16, December.

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