Investigation of magnetization characteristics of variable flux PM based on a Fourier-fitting hysteresis model

Autor: Hui Yang, Yufei Jie, Xuanjiang Guo, Jinda Li, Minghui Wang
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: AIP Advances, Vol 9, Iss 9, Pp 095056-095056-9 (2019)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.5122766
Popis: This paper investigates the magnetization characteristics of variable flux permanent magnet (VF-PM) by using a simplified C-core magnetizer device with AlNiCo PMs. A combined methodology with magnetic circuit model, finite element analysis and Fourier series fitting hysteresis model is proposed. By means of the magnetic circuit analysis, the basic sizing parameters of the device are designed for the prototype manufacturing. A simple experimental setup including a device prototype, a Gaussmeter and H-bridge-converter-based magnetizing circuit is established. Then several experimental schemes are conducted to research the magnetization characteristics. According to the experimental results, a new numerical hysteresis model of AlNiCo PMs is proposed based on Fourier-fitting functions, which can be employed to correct the hysteresis model parameters used in finite element (FE) simulation. Finally, the correctness of the proposed Fourier-fitting hysteresis model (FFHM) is experimentally verified by the test results.
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