DocumentCode :
3602251
Title :
A Winding-Switching Concept for Flux Weakening in Consequent Magnet Pole Switched Flux Memory Machine
Author :
Hui Yang ; Heyun Lin ; Zhu, Z.Q. ; Shuhua Fang ; Yunkai Huang
Author_Institution :
Eng. Res. Center for Motion Control, Southeast Univ., Nanjing, China
Volume :
51
Issue :
11
fYear :
2015
Firstpage :
1
Lastpage :
4
Abstract :
In this paper, a consequent magnet pole switched flux memory machine (CMP-SFMM) is developed to improve the torque density and simplify the mechanical manufacturing with less magnet usage compared with its hybrid magnet counterparts. Nevertheless, owing to the significant magnetic saturation, the flux-adjustable range appears to be relatively limited, which will deteriorate the flux-weakening performance. Therefore, a novel winding-switching concept is introduced to deal with its limited flux-weakening capability, i.e., the magnetizing coils will alternatively serve as the secondary armature winding after the reversal of magnetization directions of low-coercive force magnets, thus resulting in the flux-linkage cancellation within the same phase. The machine topology, flux-weakening principle, and integrated circuit design are addressed. Then, the electromagnetic characteristics of CMP-SFMM with or without winding-switching are investigated and compared, which confirms the feasibility of the flux-weakening method.
Keywords :
coercive force; coils; integrated circuit design; machine windings; magnetic flux; permanent magnet machines; torque; CMP-SFMM; consequent magnet pole switched flux memory machine; electromagnetic characteristics; flux-adjustable range; flux-linkage cancellation; flux-weakening performance; integrated circuit design; low-coercive force magnets; machine topology; magnetic saturation; magnetization direction reversal; magnetizing coils; mechanical manufacturing simplification; secondary armature winding; torque density improvement; winding-switching concept; Coils; Magnetic flux; Magnetization; Saturation magnetization; Switches; Torque; Windings; Flux weakening; memory machine; memory machine (MM); permanent magnet (PM) machine; permanent magnet machine; switched flux; switched-flux; winding switching;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2015.2432769
Filename :
7106542
Link To Document :
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