Performance of repulsive type magnetic bearing system under nonuniform magnetization of permanent magnet

被引：34

作者：

Ohji, T ^{[1
]}

Mukhopadhyay, SC ^{[1
]}

Iwahara, M ^{[1
]}

Yamada, S ^{[1
]}

机构：

[1] Kanazawa Univ, Kanazawa, Ishikawa 9208667, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2000年 / 36卷 / 05期

关键词：

magnetic bearing; magnetization and nonuniformity; permanent magnet; repulsive type;

D O I：

10.1109/20.908944

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Permanent magnet bearing system utilizes the repulsive forces between the stator and rotor permanent magnets (PM) for the levitation of the system and it results a simplified axial control scheme. A repulsive type magnetic bearing system based on the above principle was fabricated in our laboratory. Material characteristics and the configuration of the permanent magnets are the central component for this type of bearing system. Due to aging or as both the magnets are repelling each other, there will be demagnetization of the permanent magnet, resulting the field distribution along the magnet's periphery nonuniform. In this paper the effect of this magnetization nonuniformity on the performance of the bearing system has been studied.

引用

页码：3696 / 3698

页数：3