By Topic

Homopolar 2-Pole Radial Permanent-Magnet Biased Magnetic Bearing With Low Rotating Loss

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Fang Jiancheng ; Sch. of Instrum. Sci. & Opto-Electron. Eng., Beijing Univ. of Aeronaut. & Astronaut., Beijing, China ; Wang Xi ; Wei Tong ; Tang Enqiong
more authors

To satisfy the low loss requirement of magnetically suspended rotors, such as energy-storage flywheel, a novel radial permanent-magnet biased magnetic bearing (RPMB) with low rotating loss due to low flux fluctuation frequency in rotor core called homopolar 2-pole RPMB was proposed. A rotating loss separation method was also proposed, which was based on the Bertotti loss model, but without measurement of model's coefficients. In virtue of the flywheel equipped with the homopolar 2-pole RPMB and the 4-pole RPMB successively, two types of bearings' rotating loss could be separated from flywheel run-down loss. The experimental results showed that the classic loss accounts for the majority of each type bearing's rotating loss at 30 000 rpm, and the rotating loss of the homopolar 2-pole RPMB was slightly more than half of the homopolar 4-pole RPMB. It could be inferred that the effect on the loss reduction of homopolar 2-pole RPMB would be more significant, for high speed or large power applications.

Published in:

Magnetics, IEEE Transactions on  (Volume:48 ,  Issue: 8 )