轴向磁通线圈辅助定子励磁双凸极无刷直流电机及转矩脉动抑制方法

发布时间：2018-01-04 11:18

本文关键词：轴向磁通线圈辅助定子励磁双凸极无刷直流电机及转矩脉动抑制方法　出处：《中国电机工程学报》2017年21期 　论文类型：期刊论文

【摘要】：传统永磁无刷直流电机(brushless direct current motor,BLDCM)无法控制永磁磁通量及永磁体固有缺陷,限制了其在许多高科技领域中的应用。该文提出新型双凸极无永磁BLDCM。突破传统结构原理,用轴向线圈磁场辅助径向定子励磁,取消永磁材料特性制约。线圈辅助定子励磁电机更高输出转矩特性可通过提高气隙磁通及电枢绕组的电流实现。用有限元软件进行数值分析并验证其准确性和有效性;基于该电机的特殊结构和电感模型,搭建联合仿真模型,用三相六状态角度导通方式,增加输出转矩,减小转矩脉动;根据辅助励磁线圈调磁特性,进行励磁线圈和电枢绕组混合之励磁电流-转矩控制。实验验证新型结构电机样机及控制方法的可行性和有效性。
[Abstract]:The traditional permanent magnet brushless DC motor (brushless direct current motor, BLDCM) can not control the permanent magnet flux of permanent magnet and inherent defects, which limits its application in many high-tech fields. The paper proposes a novel doubly salient permanent magnet BLDCM. break the traditional structure principle, with the axial radial stator coil magnetic field auxiliary excitation, cancel restriction the characteristics of permanent magnetic material. The stator coil auxiliary excitation motor higher output torque characteristics by increasing the current air gap flux and armature winding. Using the finite element software for numerical analysis and verify its accuracy and effectiveness; special structure and model of the motor based on inductance, build a joint simulation model, through the way of using six phase angle guide, increase the output torque, torque ripple reduction; according to the auxiliary excitation coil of magnetic properties, the torque control of excitation loop and excitation current of hybrid armature winding. The feasibility and effectiveness of the prototype and control method of the new structure motor are verified.

【作者单位】：沈阳工业大学电气工程学院;
【基金】：国家自然科学基金项目(51377107,51777131)~~
【分类号】：TM33
【正文快照】： 子励磁,取消永磁材料特性制约。线圈辅助定子励磁电机更高输出转矩特性可通过提高气隙磁通及电枢绕组的电流实现。用有限元软件进行数值分析并验证其准确性和有效性;基于该电机的特殊结构和电感模型,搭建联合仿真模型,用三相六状态角度导通方式,增加输出转矩,减小转矩脉动;根

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