功率因数
功率(物理)
磁铁
有限元法
领域(数学)
调制(音乐)
电子工程
工程类
电气工程
机械工程
计算机科学
物理
声学
结构工程
电压
数学
量子力学
纯数学
作者
Xianglin Li,Zhen Wei,Yujian Zhao,Xiaosong Wang,Wei Hua
出处
期刊:IEEE Transactions on Industrial Electronics
[Institute of Electrical and Electronics Engineers]
日期:2024-05-01
卷期号:71 (5): 4375-4386
被引量:12
标识
DOI:10.1109/tie.2023.3283711
摘要
Along with the establishment of general air-gap field modulation theory, a new type of field-modulation machine has attracted increasing attention. However, the low power factor always plagued its popularization. This article is to focus on the simplest structure surface-mounted permanent-magnet field-modulation (SMPMFM) machine, aiming at exploring the implementation of the high-power-factor design. The key is that the power factor calculation formula is derived parametrically; hence, the originally vague causal relationship between the structural parameters and power factor becomes clear, guided by which the initial structure design for high-power-factor achievement is determined. Meanwhile, the power factor adjustment evaluation and the electromagnetic performance comparison, with the help of finite-element analysis (FEA), are conducted to verify the validity of the proposed power factor calculation formula. Finally, a feasible high-power-factor SMPMFM prototype is fabricated, and the experimental testing is performed, which shows good agreement with the formula calculation and FEA results. Hence, the validity of the proposed analysis for achieving a high-power-factor design of field-modulation machines is verified.
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