DocumentCode :
2424634
Title :
Principle and realization of a 5-phase PM bearingless motor drive
Author :
Jiang, Haibo ; Huang, Jin ; Kang, Min
Author_Institution :
Electr. Eng. Dept., Zhejiang Univ., Hangzhou, China
fYear :
2009
fDate :
17-20 May 2009
Firstpage :
1852
Lastpage :
1857
Abstract :
Due to the increasing requirement of high speed motor, bearingless motor has become more and more fascinated to scientists and technicians. Conventionally, two sets of windings are involved for torque and suspension force respectively. Whereas, in this paper, using the concept of multiple control freedom in multiphase motor, an innovative 5-phase bearingless machine with a single set of windings is developed. The principle of the proposed motor is indicated, in which two groups of currents are fed into a single set of winding to generate two interacting magnetic fields, whose pole pair difference is 1. Further more, the analytical model is given. The hardware system and the control strategy applied in the system are demonstrated. In the end, it is certified that the motor could successfully suspended with a radial displacement variation less than 100 mum.
Keywords :
machine control; machine windings; magnetic fields; motor drives; permanent magnet motors; 5-phase PM bearingless motor drive; hardware system; high-speed motor; magnetic field interaction; motor control strategy; multiphase motor winding; radial displacement variation; Analytical models; Control systems; Hardware; Machine windings; Magnetic fields; Magnetic levitation; Motor drives; Rotors; Stator windings; Torque;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3556-2
Electronic_ISBN :
978-1-4244-3557-9
Type :
conf
DOI :
10.1109/IPEMC.2009.5157696
Filename :
5157696
Link To Document :
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