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http://dx.doi.org/10.5370/KIEE.2013.62.11.1535

The Design of Radial Magnetic Force Equilibrium for Reduction of Vibration and Noise in IPM Type BLDC Motor  

Jeong, Tae-Seok (Dept. of Electrical Engineering, Changwon National University)
Cho, Gyu-Won (Dept. of Electrical Engineering, Changwon National University)
Kim, Gyu-Tak (Dept. of Electrical Engineering, Changwon National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.11, 2013 , pp. 1535-1540 More about this Journal
Abstract
In this paper, the Radial Magnetic Force(RMF) and cogging torque which cause vibration and noise in IPM type BLDC motor were analyzed. The cogging torque and RMF cause electromagnetic vibration. So, a notch was installed for the equilibrium of RMF and cogging torque reduction. The notch was analyzed by using a Fourier Series for the energy distribution of the air-gap. The equilibrium of RMF and the reduction of cogging torque were performed by a Design Of Experiment(DOE) with the notch. Also, operating characteristics and efficiency were analyzed and compared.
Keywords
IPM type brushless motor; Equilibrium of radial magnetic force; Reduction of vibration and noise;
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