Proposal and Analysis of a Novel Single-Drive Bearingless Motor
Proposal and Analysis of a Novel Single-Drive Bearingless Motor
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DOI：
10.1109/tie.2012.2183840
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发表时间：
2013
影响因子：
7.7
通讯作者：
J. Asama;Y. Hamasaki;T. Oiwa;A. Chiba
中科院分区：
文献类型：
--
作者：
J. Asama;Y. Hamasaki;T. Oiwa;A. Chiba
本文提出了一种单自由度主动定位无轴承电机的新设计，以下简称单驱动无轴承电机。该概念基于轴向磁通电机，其中磁场减弱和d轴电流调制强化产生用于轴向运动控制的悬浮力。单驱动无轴承电机不需要额外的绕组，也不需要逆变器来实现非接触式磁悬浮。它只有一个三相绕组和一个三相逆变器。为了验证这一新概念，进行了理论计算、有限元分析和试验机开发。试验结果成功地验证了单驱动无轴承电机的磁悬浮和非接触旋转。
In this paper, a novel design of a one degree of freedom actively positioned bearingless motor, hereafter referred to as a single-drive bearingless motor, has been proposed. The concept is based on an axial flux motor where field weakening and strengthening with d-axis current modulation produce the suspension force for axial motion control. The single-drive bearingless motor requires neither additional windings, nor inverters for noncontact magnetic suspension. It has only one three-phase winding set and one three-phase inverter. To verify this novel concept, theoretical calculations, finite-element method analysis, and test machine development are carried out. The test results successfully demonstrate the magnetic suspension and noncontact rotation of the single-drive bearingless motor.