Analysis of Electromagnetic Performance of a New Dual-Rotor Hybrid Excitation Generator

IF 1.1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-08-29 DOI:10.1002/tee.70143

Mingjun Xu, Wenjing Hu, Mingjun Wang, Xueyi Zhang, Huihui Geng, Shilong Yan, Yixin Liu, Qi Yu

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Abstract

In order to solve the problems of the unadjustable magnetic field of the permanent magnet generator and the high failure rate of the brush claw pole electric excitation generator, a new type of dual-rotor hybrid excitation generator (HEG) is proposed, which is composed of a suspended brushless claw pole electric excitation rotor and a built-in combined magnetic pole permanent magnet rotor. A magnetic field analysis method for the new HEG is proposed, which establishes equivalent magnetic circuit models considering the leakage flux and magnetic circuit distribution. The end leakage flux path of the permanent magnet rotor and the axial leakage flux path of the claw pole rotor are analyzed. The main magnetic flux and air gap magnetic flux of the permanent magnet rotor and claw pole rotor are calculated by using the equivalent magnetic circuit method and mesh hole method. Through the finite element method, the leakage flux coefficient of the synthetic magnetic field of the HEG is calculated, and the electromagnetic performance is analyzed to verify the correctness of the magnetic field analysis method and the rationality of the magnetic field distribution. Finally, a prototype is built and tested. The results show that the proposed HEG has the advantages of a wide magnetic regulation range, stable output voltage, and good output performance. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

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一种新型双转子混合励磁发电机电磁性能分析

为了解决永磁发电机磁场不可调节和刷爪极电励磁发电机故障率高的问题，提出了一种新型的双转子混合励磁发电机（HEG），该发电机由悬挂式无刷爪极电励磁转子和内置组合磁极永磁转子组成。提出了一种新型HEG的磁场分析方法，建立了考虑漏磁和磁路分布的等效磁路模型。分析了永磁转子的末端漏磁路径和爪极转子的轴向漏磁路径。采用等效磁路法和网孔法分别计算了永磁转子和爪极转子的主磁通量和气隙磁通量。通过有限元法计算了HEG合成磁场的漏磁系数，并对其电磁性能进行了分析，验证了磁场分析方法的正确性和磁场分布的合理性。最后，构建一个原型并进行测试。结果表明，所提出的HEG具有磁调节范围宽、输出电压稳定、输出性能好等优点。©2025日本电气工程师协会和Wiley期刊有限责任公司。

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来源期刊

IEEJ Transactions on Electrical and Electronic Engineering 工程技术-工程：电子与电气

CiteScore

2.70

自引率

10.00%

发文量

199

审稿时长

4.3 months

期刊介绍： IEEJ Transactions on Electrical and Electronic Engineering (hereinafter called TEEE ) publishes 6 times per year as an official journal of the Institute of Electrical Engineers of Japan (hereinafter "IEEJ"). This peer-reviewed journal contains original research papers and review articles on the most important and latest technological advances in core areas of Electrical and Electronic Engineering and in related disciplines. The journal also publishes short communications reporting on the results of the latest research activities TEEE ) aims to provide a new forum for IEEJ members in Japan as well as fellow researchers in Electrical and Electronic Engineering from around the world to exchange ideas and research findings.