Analysis of electromagnetic characteristics and rotor strength of tilted and eccentric rotor in permanent magnet motors

HAN Xueyan; ZHANG Chenxu; CHENG Yongqian; ZHU Longfei

doi:10.15938/j.emc.2026.02.003

您当前的位置：

首页 >

文章列表页 >

Analysis of electromagnetic characteristics and rotor strength of tilted and eccentric rotor in permanent magnet motors

更新时间：2026-04-08

- Analysis of electromagnetic characteristics and rotor strength of tilted and eccentric rotor in permanent magnet motors
- Vol. 30, Issue 2, Pages: 21-35(2026)
- 作者机构：
  
  (沈阳工业大学国家稀土永磁电机工程技术研究中心, ),辽宁,沈阳,110870
- 作者简介：
- 基金信息：
- DOI：10.15938/j.emc.2026.02.003
  CLC： TM351
- Published：2026
- 稿件说明：
移动端阅览
HAN Xueyan, ZHANG Chenxu, CHENG Yongqian, et al. Analysis of electromagnetic characteristics and rotor strength of tilted and eccentric rotor in permanent magnet motors[J]. 2026, 30(2): 21-35.
DOI：

HAN Xueyan, ZHANG Chenxu, CHENG Yongqian, et al. Analysis of electromagnetic characteristics and rotor strength of tilted and eccentric rotor in permanent magnet motors[J]. 2026, 30(2): 21-35. DOI： 10.15938/j.emc.2026.02.003.

摘要

本文基于磁导函数法

引入倾斜偏心磁导修正系数

建立了考虑倾斜偏心的气隙磁导解析模型

推导出电机气隙磁密和电磁力的解析表达式

并利用有限元法验证了解析模型的正确性。在此基础上分析了电机正常运行和倾斜偏心运行时电磁力波的时空特性

重点探究了倾斜偏心对电磁力波阶次成分及其频率特性的影响。同时

探讨了转子倾斜角度从0°到0.008 5°变化时

电机在

方向和

方向的振动位移及电磁噪声相对于正常运行时的变化规律

并研究了满足工程要求的转子结构安全系数所对应的转子倾斜角度。本研究为球磨机用低速永磁电机的优化设计和可靠运行提供了理论依据和技术支持。

Abstract

An analytical model of air-gap permeance considering tilt eccentricity was established by introducing a tilt-eccentricity correction coefficient based on the magnetic permeance function method. The analytical expressions for the air-gap magnetic flux density and electromagnetic force of the motor were derived

and correctness of the analytical model was verified using the finite element method. On this basis

the temporal and spatial characteristics of electromagnetic force waves during normal operation and tilt-eccentric operation of the motor were analyzed

with a focus on investigating the influence of tilt eccentricity on the order components and frequency characteristics of electromagnetic force waves. Additionally

the variation patterns of the motor's vibration displacement in

the

and

directions and electromagnetic noise

relative to normal operation

were explored as the rotor tilt angle increases from 0° to 0.008 5°. The rotor tilt angle corresponding to the structural safety factor that meets engineering requirements was also studied. This research provides a theoretical basis and technical support for the optimal design and reliable operation of low-speed permanent magnet motors used in ball mills.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Structural optimization and thermal-mechanical design of rotor enclosures for high-speed PM motors under cryogenic conditions

Stress and loss analysis of novel inserted permanent magnet rotor for high-speed permanent magnet machine

Analysis of a mechanical axial variable flux permanent magnet synchronous machine

Optimization and electromagnetic characteristic analysis of permanent magnet assisted bearingless synchronous reluctance motor

Related Author

GE Baojun

QU Shenghao

WANG Likun

BAO Xiaohua

REN Dawei

LI Shihao

BIAN Lilong

LIU Xi-ping

Related Institution

National Engineering Research Center of Large Electric Machines and Heat Transfer Technology, Harbin University of Science and Technology

School of Electrical Engineering and Automation, Hefei University of Technology

( 1．江西理工大学电气工程与自动化学院，江西赣州341000: 2．江西理工大学机电工程学院，)

( School of Electrical and Information Engineering，Jiangsu University，，)

AI问答

⁰