Investigation of Balanced Bidirectional-Magnetization Effect of a Novel Hybrid-Magnet-Circuit Variable-Flux Memory Machine

• Published in: IEEE transactions on magnetics Vol. 58; no. 2; pp. 1 - 6
• Main Authors: Yang, Hui, Tu, Rui, Lin, Heyun, Niu, Shuangxia, Lyu, Shukang
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.02.2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Balanced bi-directional magnetization effect; Circuits; Coercivity; Current pulses; Demagnetization; Fourier series; hybrid magnet circuit (HMC); Hysteresis models; Integrated circuit modeling; Investigations; Iron; Magnetic circuits; Magnetic flux; Magnetic hysteresis; Magnetism; Magnetization; memory machine; Topology; variable flux
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2021.3085750

In this article, the balanced bidirectional-magnetization effect of a newly developed hybrid-magnet-circuit variable-flux memory machine (HMC-VFMM) is revealed and investigated. First, the machine topology and variable-flux principle of the HMC-VFMM are described. In addition, the balanced bidirectional-magnetization effect is analytically unveiled by using a Fourier-series-based hysteresis model of low coercive force (LCF) magnet. The PM magnetization characteristics are then investigated by a coupled solution, which is employed to identify the mismatch between the LCF magnet movement trajectories subject to either continuous one-way or bidirectional alternate current pulses. Finally, a prototype is manufactured and tested to verify the theoretical analyses.