Investigation of surface-inset Halbach machines with trapezoidal mixed grade magnets

IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Youyuan Ni, Zhiwei Qiu, B. Xiao
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引用次数: 0

Abstract

In order to increase the torque performance of the conventional surface-inset Halbach machines, a surface-inset Halbach machine with trapezoidal mixed grade magnets is proposed and investigated. Based on a layered and linear superposition method, the air-gap magnetic fields are analytically obtained from solution of matrix equations. In addition, the dimensions of mid-magnet and the remanences of Halbach magnets are analytically optimized. In order to show its advantages, the optimized performances of the proposed machine model are compared with those of the conventional Halbach and trapezoidal equal grade Halbach machines. The prediction shows that the proposed optimized machine model has the largest electromagnetic torque and the lowest torque ripple. The demagnetization performance is also investigated. Finally, the finite element analysis (FEA) results verify the analytical predictions.
梯形混合磁体表面嵌装式哈尔巴赫机床的研究
为了提高传统表面插入式霍尔巴赫电机的转矩性能,提出并研究了一种梯形混合磁体表面插入式霍尔巴赫电机。基于分层线性叠加法,从矩阵方程的解中解析得到了气隙磁场。此外,还对哈尔巴赫磁体的中磁体尺寸和剩余物进行了分析优化。为了显示其优势,将优化后的机床模型与传统的哈尔巴赫机床和梯形等阶哈尔巴赫机床进行了性能比较。预测结果表明,优化后的电机模型具有最大的电磁转矩和最小的转矩脉动。并对其消磁性能进行了研究。最后,通过有限元分析(FEA)验证了分析结果。
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来源期刊
CiteScore
1.70
自引率
0.00%
发文量
100
审稿时长
4.6 months
期刊介绍: The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are: Physics and mechanics of electromagnetic materials and devices Computational electromagnetics in materials and devices Applications of electromagnetic fields and materials The three interrelated key subjects – electromagnetics, mechanics and materials - include the following aspects: electromagnetic NDE, electromagnetic machines and devices, electromagnetic materials and structures, electromagnetic fluids, magnetoelastic effects and magnetosolid mechanics, magnetic levitations, electromagnetic propulsion, bioelectromagnetics, and inverse problems in electromagnetics. The editorial policy is to combine information and experience from both the latest high technology fields and as well as the well-established technologies within applied electromagnetics.
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