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当前位置：电气工程与自动化 > 2026年 5卷 (2)期

Open Access Article

Journal of Electrical Engineering and Automation. 2026; 5: (2) ; 71-78 ; DOI: 10.12208/j.jeea.20260015.

Electromagnetic optimization and characteristic analysis of the dual-stator brushless doubly-fed generator based on stator-rotor collaborative skewing
基于定转子协同斜极的双定子无刷双馈电机电磁优化与特性分析

作者： 姜永将 *, 张文峰, 胡震, 杨艳

南京邮电大学自动化学院江苏南京;

*通讯作者：姜永将,单位：南京邮电大学自动化学院江苏南京；

发布时间: 2026-06-27 总浏览量: 15

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摘要

本文针对双定子无刷双馈发电机因磁场调制环所引起的三相磁路不对称与转矩脉动问题，提出一种基于定转子协同斜极的优化方法。在阐明不对称产生机理的基础上，理论推导了通过协同设计内定子、外定子及转子三者斜极角度以重建三相对称磁路的约束条件。通过将转子斜极引入补偿系统，建立了三者斜极角度的协同分配模型，并据此提出多种可行的斜极组合方案，从而克服了传统仅依靠定子大角度斜槽所导致的槽空间严重受限的问题。有限元分析表明，相较于文献[13]提出的仅定子斜槽方案，新方案在完全保持原有电磁补偿性能的同时，将内定子斜槽角度降低了50%，显著提高了槽利用率与电机的工艺可行性。本研究揭示了补偿角度分配的优化潜力，为双定子无刷双馈电机的工程化设计提供了新的技术路径。

关键词： 无刷双馈电机；双定子；不对称补偿；协同斜极；有限元分析

Abstract

An optimization method based on stator-rotor collaborative skewing is proposed to address the three-phase magnetic circuit asymmetry and significant torque ripple in dual-stator brushless doubly-fed generators (BDFG-DS) caused by the field modulation ring. Following a detailed clarification of the asymmetry mechanism, the constraint conditions for reconstructing three-phase magnetic symmetry are theoretically derived through coordinated skew-angle design of the inner stator, outer stator, and rotor. By introducing rotor skew into the compensation system, a collaborative distribution model for the skew angles of the three components is established, leading to multiple feasible skew-angle combination schemes. This approach overcomes the severe slot-space limitation inherent in traditional methods that rely solely on large skew angles applied to the stators. Finite element analysis confirms that the proposed scheme, compared to the stator-only skewing scheme proposed in literature [13], maintains the original electromagnetic compensation performance while reducing the inner stator skew angle by 50%, significantly improving slot utilization and manufacturability. This study reveals the optimization potential in compensating angle distribution and provides a new technical pathway for the engineering design of BDFG-DS.

Key words： Brushless doubly-fed generator (BDFG); Dual stator; Asymmetry compensation; Collaborative skewing; Finite element analysis

参考文献 References

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引用本文

姜永将, 张文峰, 胡震, 杨艳, 基于定转子协同斜极的双定子无刷双馈电机电磁优化与特性分析[J]. 电气工程与自动化, 2026; 5: (2) : 71-78.

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