NDLI: Research on a Low Power Consumption Six-Pole Heteropolar Hybrid Magnetic Bearing

Content Provider	IEEE Xplore Digital Library
Author	Li Ji Longxiang Xu Chaowu Jin
Copyright Year	1965
Abstract	This paper reports the work on a six-pole heteropolar radial hybrid magnetic bearing (HMB). Its configuration and working principle are introduced. The mathematical model is built based on equivalent magnetic circuit and coordinate transformation method. The model shows that the coupling in x and y directions is very low and can be ignored when the rotor is around the central position. A decoupling controller for this six-pole HMB is obtained. A design principle for bias flux density is presented based on maximization of load capacity in different directions, through which a prototype six-pole HMB for a five-degrees-of-freedom magnetic bearing system is designed and assembled. Both the simulation and experimental results show that the rotor can be suspended steadily and the whole control system has good dynamic and static performance. Finally, tests were done to determine power losses. As a result, the total power consumption of this six-pole HMB is just 12.77 W for a 2.2 kg rotor, which is only 13.35% of a traditional eight-pole active magnetic bearing with the same load capacity.
Sponsorship	IEEE Magnetics Society
Starting Page	4918
Ending Page	4926
Page Count	9
File Size	1707638
File Format	PDF
ISSN	00189464
Volume Number	49
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic levitation Rotors Permanent magnets Magnetic flux Force Iron Mathematical model six-pole Heteropolar hybrid magnetic bearing low power consumption
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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