NDLI: Influence of a novel flux-absorbing structure on the performance of a surface-mounted permanent-magnet motor with overhang

Content Provider	IET Digital Library
Author	Kwon, Hyuk Sung Yeo, Han Kyeol Jung, Hyun Kyo
Abstract	The demand for surface-mounted permanent-magnet (SPM) motors with high torque and power densities has increased as these motors are becoming more widely used in applications requiring high performance in limited spaces, such as electric vehicles and robot arms. Some studies have increased the torque and power densities, such as hybrid flux permanent-magnet motors utilising radial and axial magnetic fluxes, dual-rotor and dual-stator permanent-magnet motors. Although these motors offer high performance, there are some problems such as low productivity and poor applicability to small motors have arisen due to their complicated structures. An overhang structure can be a simple and effective means of solving the aforementioned problems. However, the overhang effects do not increase linearly but tend to converge as the length of the overhang increases. Therefore, a novel flux-absorbing structure (FAS) that effectively enhances the overhang effects of SPM motors even in cases with considerable overhang was proposed. The magnetic flux path from the overhang to the stator can be efficiently improved via the proposed FAS. Thereby, the performances of a SPM motor can be effectively enhanced when the FAS is adopted. The effectiveness of the proposed FAS was verified via a 3D finite-element analysis and in experiments.
Starting Page	2096
Ending Page	2102
Page Count	7
ISSN	17518660
Volume Number	13
e-ISSN	17518679
Issue Number	Issue 12, Dec (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/13/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2019.0291
Journal	IET Electric Power Applications
Publisher Date	2019-09-06
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A.C. Machine Axial Magnetic Fluxes Complicated Structures Considerable Overhang D.C. Machines Dual-rotor Dual-stator Permanent-magnet Motors FAS Finite Element Analysis High Torque Hybrid Flux Permanent-magnet Motors Magnetic Flux Magnetic Flux Path Novel Flux-absorbing Structure Overhang Effect Overhang Increases Overhang Structure Permanent Magnet Machine Permanent Magnet Motors Poor Applicability Power Densities Radial Fluxes Rotors Simple Means SPM Motor Stators Surface-mounted Permanent-magnet Motor Torque
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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