Analysis of a novel switched-flux memory motor employing a time-divisional magnetization strategy

Journal article (2014)

Authors

Hui Yang Southeast University

Heyun Lin Southeast University

J. Dong Southeast University

Jianhu Yan Southeast University

Yunkai Huang Southeast University

Shuhua Fang Southeast University

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External organisation

Permanent magnet Electromagnetic analysis Hysteresis model Memory machine Switched-flux

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Published Date

2014-2

Language

English

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Abstract

This paper presents a novel switched-flux memory motor (SFMM) by artfully incorporating the flux-mnemonic concept into the conventional switched-flux permanent magnet machine. The magnetic susceptibility of AlNiCo PM provides the flexible online controllability of air-gap flux by imposing a transient current pulse. To uniformize magnetization levels of PMs, a time-divisional magnetization strategy (TDMS) is proposed. Due to the uniqueness of hysteresis nonlinearity and instability regarding AlNiCo PM operating point, the time-stepping finite element method (TSFEM) dynamically coupled with a nonlinearity-involved parallelogram hysteresis model (NIPHM) of AlNiCo PM is performed to investigate the electromagnetic performance of the proposed SFMM. The results derived from the combinative algorithm verifies the flux-adjustable capability of the proposed motor equipped with TDMS and the validity of the proposed NIPHM.