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矢量磁路及应用初探

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磁路理论是电机、变压器等电磁设备的关键理论,为解决复杂电磁问题和优化电磁设备性能提供重要分析工具.该文首先追溯磁路理论的发展历程,介绍前人为完善磁路理论作出的有益探索,剖析其局限性和实际应用中所面临挑战.在此基础上,该文从磁路的基本物理属性出发,定义物理量磁感和虚拟磁容,建立包括磁阻、磁感和虚拟磁容3个核心磁路元件/参数的矢量磁路理论,表征磁路中磁化、涡流和磁滞3个基本属性,揭示虚拟磁功率与电功率间的内在联系,提出磁电功率定律,并与其他磁路理论、建模方法进行比较和分析,总结它们的联系和区别.为展示矢量磁路理论在科学与工程领域的价值,呈现4个实际应用案例.最后,对矢量磁路理论的特点进行总结,并对未来研究方向进行展望.
Vector Magnetic Circuit and Its Preliminary Applications
The magnetic circuit theory stands as a pivotal theory for electromagnetic devices like electrical machines and transformers,furnishing indispensable tools for addressing intricate electromagnetic challenges and optimizing the performance of electromagnetic apparatus.In this paper,the historical development of magnetic circuit theory is first traced,providing insights into the valuable contributions made by earlier researchers towards refining magnetic circuit theories,including magnetic circuit parameters and their respective theoretical development.Additionally,their limitations and the challenges they encounter in practical applications are analyzed.On this basis,this paper pioneers the definition of magductance and hysteretance from the fundamental physical properties of magnetic circuit,establishes the vector magnetic circuit theory encompassing three core components(reluctance,magductance,and hysteretance),systematically and completely characterizes the three basic properties of magnetization,eddy current and hysteresis in the magnetic circuit,reveals the intrinsic connection between the virtual magnetic power and the electric power,and puts forward the magnetoelectric power law.An exhaustive comparative analysis with other magnetic circuit theories or modeling methods is conducted to illustrate their interconnections and differences.In order to show the applicative value of the vector magnetic circuit theory in science and engineering,four practical application scenarios are presented.Finally,the unique features of the proposed vector magnetic circuit theory are highlighted and the future research directions are prospected.

vector magnetic circuit theorymagnetic circuit componentmagductancehysteretancemagnetoelectric power lawelectrical machine designpower loss calculationmagnetic material

秦伟、程明、王政、马钲洲、朱洒、顾珉睿、朱新凯、花为

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东南大学电气工程学院,江苏省 南京市 210096

河海大学能源与电气学院,江苏省 南京市 211100

华北电力大学电力工程系,河北省 保定市 071003

矢量磁路理论 磁路元件 磁感 虚拟磁容 磁电功率定律 电机设计 损耗计算 磁性材料

国家自然科学基金(原创探索计划项目,重大项目)国家自然科学基金(原创探索计划项目,重大项目)

5225006551991381

2024

10.13334/j.0258-8013.pcsee.232113

中国电机工程学报
中国电机工程学会

中国电机工程学报

CSTPCD北大核心
影响因子：2.712
ISSN：0258-8013
年,卷(期)：2024.44(18)
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