A study on magnetically-levitated micro PM motor using micro magnetic bearings

采用微型磁力轴承的磁悬浮微型永磁电机的研究

基本信息

批准号：
09650324
负责人：
KOMORI Mochimitsu
金额：
$ 2.11万
依托单位：
Kyushu Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650324/
关键词：
Micro magnetic bearing PM motor Magnetic levitation Micro Machine Micro actuator Position control 磁気軸受マイクロ軸受

项目摘要

We have developed a magnetically levitated micro PM motor with a millimeter-sized cylindrical rotor. Two types of electromagnets are applied to the micro PM motors. And the dynamic characteristics of the micro PM motors were investigated. From the experimental results, it is found that the driving current ranges of these micro PM motors are small in comparison to other normal-sized PM motors. The micro PM motor with horseshoe-shaped electromagnets increases up to speeds higher than 【approximately equal】30000 rpm, which is very fast and marvelous. The driving current range for the micro PM motor with cylindrical electromagnets is very small compared to that for the motor with horseshoe-shaped electromagnets. The magnetic friction for the micro PM motor with cylindrical electromagnets is very smaller than that for the motor with horseshoe-shaped electromagnets. From these results, it is found that for high speed rotations the micro PM motor with horseshoe-shaped electromagnets is better than that with cylindrical electromagnets. From the standpoint of electric power consumption, the micro PM motor with cylindrical electromagnets is better than that with horseshoe-shaped electromagnets because of the very small driving current range. For quick responses, the micro PM motor with horseshoe-shaped electromagnets is better than that with cylindrical electromagnets. Using this characteristic, it is shown that the rotor speed of the micro PM motor with horseshoe-shaped electromagnets can be controlled.The micro PM motor may be applied to micro gyroscopes, mechanical sensors, and other applications. It is regarded as promising for micro mechatronics.

我们已经开发了带有毫米大小的圆柱转子的磁性微电机。将两种类型的电子磁铁应用于微电机。并研究了微型PM电动机的动态特性。从实验结果中可以发现，与其他正常大小的PM电动机相比，这些微电动机的驱动电流范围很小。带有马蹄形电子的微电动机的速度高于[大约等于] 30,000 rpm的速度，这是非常快速且奇妙的速度。与带有圆柱电子电子磁铁的电动机相比，带有圆柱电子电磁体的微型PM电机的驱动电流范围非常小。带有圆柱电子电磁体的微型PM电动机的磁摩擦比带有喇叭形电子的电动机的磁性摩擦非常小。从这些结果中可以发现，对于高速旋转，带有马蹄形电子设备的微电动机比使用圆柱电子产品更好。从电力消耗的角度来看，由于驾驶电流范围很小，带有圆柱电子设备的微型PM电动机比使用马蹄形电子的电动机要好。为了进行快速响应，带有马蹄形电子设备的微电动机比使用圆柱电子的微电动机要好。使用此特性，可以控制带有马蹄形电子的微电动机的转子速度。微型PM电动机可以应用于微型陀螺仪，机械传感器和其他应用。它被认为是微型机电学的有希望的。