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Electromagnetic Analysis of Slotless Brushless Permanent Magnet Machines According to Magnetization Patterns  

Jang Seok-Myeong (충남대 공대 전기공학과)
Choi Jang-Young (충남대 공대 전기공학과)
Cho Han-Wook (충남대 공대 전기공학과)
Park Ji-Hoon (충남대 공대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.54, no.12, 2005 , pp. 576-585 More about this Journal
Abstract
This paper deals with the electromagnetic field analysis of slotless brushless permanent magnet machines with three different magnetization patterns such as Halbach, parallel and radial magnetization. The magnetization modeling of Halbach, parallel and radial magnetization is performed analytically. And then, analytical solutions for open-circuit field distributions, armature reaction field distributions, flux linkages due to PMs and stator windings, torque, back-emf and inductance are derived in terms of magnetic vector potential and two-dimensional (2-d) polar coordinate systems. The analytical results are validated extensively by finite element (FE) analyses. The magnet volume required in order to produce identical flux density is compared with each magnetization. Finally, analytical solutions and derivation procedures of those presented in this paper can be applied to slotless and slotted brushless permanent magnet AC and DC machines.
Keywords
Electromagnetic Field Analysis; Slotless Brushless Permanent Magnet Machines; Halbach; Parallel and Radial Magnetization;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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