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Improvement of Energy Density in Single Stator Interior Permanent Magnet Using Double Stator Topology

机译：使用双定子拓扑提高单定子内部永磁体的能量密度

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摘要

The paper presents the energy density improvement using magnetic circuit analysis of the interior permanent magnet motor. The leakage flux from the conventional structure is improved with modified magnetic circuit to improve the energy and thereby the torque value. This is approached with a double stator structure design. The proposed structure is investigated with two design variations, namely, the double stator with thin pole shoe and the double stator with thick pole shoe motors. Variations in the mechanical parameters of the all the developed models are analyzed through the finite element analysis tool. In all investigations the magnetic source is fixed in both the permanent magnet volume and coil magnetomotive force, respectively, as 400 mm~3 per each pole and 480 Ampere turns per pole. From the analysis the best fit magnetic structure based on the torque characteristics is derived and is fabricated for the same volume as that of the conventional structure for performance evaluations. It is found out that there is improvement on the motor constant square density for the proposed improved magnetic circuit through the best fit double stator with thick pole shoe by about 83.66% greater than that of the conventional structure.
机译：本文通过对内部永磁电动机的磁路分析提出了提高能量密度的方法。通过改进的磁路可以改善传统结构的漏磁通，从而改善能量，从而改善扭矩值。这是通过双定子结构设计实现的。对所提出的结构进行了两种设计变化的研究，即带有细极靴的双定子和带有粗极靴的双定子。通过有限元分析工具分析了所有已开发模型的机械参数的变化。在所有研究中，磁源分别固定在永磁体体积和线圈磁通势中，分别为每极400 mm〜3和每极480安匝。通过分析，得出了基于扭矩特性的最佳拟合磁性结构，并以与常规结构相同的体积制造了磁性结构，以进行性能评估。已经发现，通过具有厚的极靴的最佳配合的双定子，对于所提出的改进的磁路，电动机的恒定平方密度有比传统结构大约83.66％的改进。

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  • 来源
    《Mathematical Problems in Engineering》 |2014年第8期|787382.1-787382.15|共15页
  • 作者

    Raja Nor Firdaus; Norhisam Misron; Chockalingam Aravind Vaithilingam; Masami Nirei; Hiroyuki Wakiwaka;

  • 作者单位

    Department of Electrical and Electronics, Faculty of Engineering, Universiti Putra Malaysia, Malaysia,Faculty of Electrical Engineering, Universiti Teknikal Malaysia, Melaka, Malaysia;

    Department of Electrical and Electronics, Faculty of Engineering, Universiti Putra Malaysia, Malaysia,Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;

    CIARG, School of Engineering, Taylor's University, 47500 Selangor, Malaysia;

    Nagano National College of Technology, 716 Tokuma, Nagano 381-8550, Japan;

    Shinshu University, 500 Wakasato, Nagano 380-8553, Japan;

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