Study on fluid friction loss on rotor surface of FeCo based high speed permanent magnet motor

IF 1.1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Applied Electromagnetics and Mechanics Pub Date : 2023-08-25 DOI:10.3233/jae-230030

Peng-long Hou, B. Ge, Dajun Tao, Bo Pan, Liping Zhao

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引用次数: 0

Abstract

The linear speed of the rotor surface of high speed permanent magnet motor (HSPMM) is as high as 100 m/s, and the air friction loss on the rotor surface is much higher than that of ordinary motors, accounting for a large proportion of the total loss, and the actual air friction loss on the rotor surface is much higher than that of ordinary motors. It is extremely difficult to directly measure and verify the size of the rotor surface. At the same time, the air friction loss on the rotor surface is related to various factors such as motor speed, air gap structure and rotor surface roughness. It is difficult to accurately calculate through theoretical analysis and analytical methods. Based on the 3D fluid field physical model, this paper analyzes the relationship between the rotor air friction loss of FeCo based HSPMM and the rotor speed, rotor geometry, surface roughness and axial wind speed. Based on HSPMM, the calculation and test method of rotor surface air friction loss are studied. Through the FeCo based HSPMM no-load test, according to the relationship between the rotor air friction loss and other losses and the motor speed, the rotor surface air friction loss can be separated from the total loss. The experimental results are consistent with the calculated values, indicating that the HSPMM rotor air friction loss calculation method based on 3D fluid field analysis is effective.

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基于FeCo的高速永磁电机转子表面流体摩擦损失研究

高速永磁电机(HSPMM)转子表面线速度高达100m /s，转子表面的空气摩擦损失远高于普通电机，占总损失的比重较大，转子表面实际空气摩擦损失远高于普通电机。直接测量和验证转子表面的尺寸是极其困难的。同时，转子表面的空气摩擦损失与电机转速、气隙结构、转子表面粗糙度等多种因素有关。通过理论分析和分析方法难以准确计算。基于三维流场物理模型，分析了基于FeCo的HSPMM转子空气摩擦损失与转子转速、转子几何形状、表面粗糙度和轴向风速的关系。基于HSPMM，研究了转子表面空气摩擦损失的计算和试验方法。通过基于FeCo的HSPMM空载试验，根据转子空气摩擦损失和其他损失与电机转速的关系，可以将转子表面空气摩擦损失从总损失中分离出来。实验结果与计算值吻合较好，表明基于三维流场分析的HSPMM转子空气摩擦损失计算方法是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Applied Electromagnetics and Mechanics 物理-工程：电子与电气

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.