Open AccessComparative Study of Electromagnetic Performance of Double-tooth Variable Flux Memory Machine
Author(s) -
Chenguang Zhang,
Xu Liu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1549/5/052050
Subject(s) - torque , flux (metallurgy) , magnetic flux , variable (mathematics) , magnet , finite element method , magnetization , computer science , mechanics , materials science , mechanical engineering , control theory (sociology) , mathematics , physics , mathematical analysis , engineering , structural engineering , magnetic field , artificial intelligence , thermodynamics , metallurgy , control (management) , quantum mechanics
Aiming at the problem of the low electromagnetic torque performance of the traditional Variable Flux Memory Machine (VFMM), a novel double-tooth Variable Flux Memory Machine is proposed in this paper. Firstly, the topology and operation principle of the novel double-tooth VFMM are introduced. By using the 2-D finite element analysis method, the open circuit characteristics of the novel double-tooth VFMM and the traditional single-tooth VFMM with low coercive force (LCF) in different magnetization states are compared and analysed, and the electromagnetic torque in the flux-enhanced state is compared and studied. In addition, the efficiency maps of double-tooth VFMM are investigated. Compared with the traditional single-tooth VFMM, the flux adjustment ability of the double-tooth VFMM is more than doubled, and the electromagnetic torque under the same current is increased by 21.8%. The results show that the double-tooth VFMM has better flux adjustment ability and larger electromagnetic torque.