Novel control method for magnetic suspension and motor drive with one three-phase voltage source inverter using zero-phase current

被引:5
|
作者
Asama, Junichi [1 ]
Fujii, Yusuke [1 ]
Oiwa, Takaaki [1 ]
Chiba, Akira [2 ]
机构
[1] Shizuoka Univ, Dept Mech Engn, Naka Ku, 3-5-1 Johoku, Hamamatsu, Shizuoka 4328561, Japan
[2] Tokyo Inst Technol, Dept Elect & Elect Engn, Meguro Ku, Tokyo 1528552, Japan
来源
MECHANICAL ENGINEERING JOURNAL | 2015年 / 2卷 / 04期
基金
日本学术振兴会;
关键词
Bearingless motor; Magnetic bearing; Magnetic suspension; 1-degree-of-freedom (DOF) active control; Permanent magnet motor; Zero-phase current; Voltage source inverter;
D O I
10.1299/mej.15-00116
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper focuses on realization of both the one-degree-of-freedom (one-DOF) active magnetic suspension and motor operation of a three-phase permanent magnet motor using only one three-phase voltage source inverter. The suspension winding of the electromagnet for the one-DOF magnetic suspension is connected between the neutral point of the Y-connected three-phase winding and the middle point of the dc voltage sources, and the resulting zero-phase current is utilized to control the suspension force. The control method of the zero-phase current is theoretically derived to avoid interference with the motor performance. Experimental apparatus was built and tested, which consists of an iron ball magnetic suspension system and a three-phase interior permanent magnet motor. The experimental results demonstrated stable magnetic suspension and motor rotation using only one three-phase inverter.
引用
收藏
页数:10
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