Performances of bearingless and sensorless induction motor drive based on mutual inductances and rotor displacements estimation

被引:74
作者
Tera, T [1 ]
Yamauchi, Y
Chiba, A
Fukao, T
Rahman, MA
机构
[1] Tokyo Univ Sci, Dept Elect Engn, Tokyo 2788510, Japan
[2] Musashi Inst Technol, Tokyo 1588557, Japan
[3] Mem Univ Newfoundland, Fac Engn & Appl Sci, St John, NF A1B 3X5, Canada
关键词
bearingless; bearingless motors; magnetic bearings; self-sensing; sensorless;
D O I
10.1109/TIE.2005.862297
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A self-sensing bearingless motor is considered as an effective solution to reduce cost and shorten a shaft length. In this paper, a novel estimation method of a rotor displacement is proposed. The method is based on the detection of currents induced by mutual inductances, which vary as a function of the rotor displacements. A high-frequency carrier voltage is superimposed on a motor main terminal voltage. The induced carrier-frequency current component is distinguished from the suspension-winding current. The carrier signal is selected high enough to suspension-current components. However, the carrier current is disturbed in transient conditions. The disturbed current results in a vibration of the estimated rotor displacements. A suspension-current estimator is proposed to reduce this vibration and to obtain the difference between the detected current and the estimated current. As a result, the disturbance vibration is significantly reduced. It is shown that a successful magnetic suspension is realized with the proposed method.
引用
收藏
页码:187 / 194
页数:8
相关论文
共 12 条
[1]  
AOYAGI H, 2002, P JAP IND APPL SOC C, V2, P847
[2]   AN ANALYSIS OF BEARINGLESS AC MOTORS [J].
CHIBA, A ;
DEIDO, T ;
FUKAO, T ;
RAHMAN, MA .
IEEE TRANSACTIONS ON ENERGY CONVERSION, 1994, 9 (01) :61-68
[3]  
Choi C., 1998, P MOVIC 98, V2, P739
[4]  
HACHIYA T, 2003, P 7 INT S MAGN SUSP, P44
[5]  
Kuwajima T., 2001, 4th IEEE International Conference on Power Electronics and Drive Systems. IEEE PEDS 2001 - Indonesia. Proceedings (Cat. No.01TH8594), P725, DOI 10.1109/PEDS.2001.975408
[6]  
MATSUDA K, 1996, P 5 INT S MAGN BEAR, P107
[7]  
Matuda K., 2003, P 15 S EL DYN KAN JA, P591
[8]   Stability analysis of self-sensing magnetic bearing controllers [J].
Mizuno, T ;
Araki, K ;
Bleuler, H .
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 1996, 4 (05) :572-579
[9]  
MIZUNO T, 1996, P 5 INT S MAGN BEAR, P119
[10]  
MURONOI K, 2000, P INT POW EL C IPEC, P2109