中国电机工程学报2017，Vol.37Issue(21)：6246-6254,9.DOI:10.13334/j.0258-8013.pcsee.171116
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
Research on Axial Flux Coil Assisted Stator Excitation Brushless Direct Current Motor With Doubly Salient and Torque Ripple Reduction Method
摘要
Abstract
Due to the uncontrollable permanent magnet flux and the inherent defects of the permanent magnet, the traditional PMBLDCM suffers the limitation of its application in many high-tech fields. This paper proposed a novel doubly salient brushless DC motor without permanent magnet. To improve the traditional structural principle, assisting radial stator excitation would be done by axial assisted coil field, and the constraints of the permanent magnet material properties was canceled. Higher output torque characteristic of the new motor could be achieved by improving the air-gap flux and the armature winding current. The motor was numerically computed by 3-D FEM, the accuracy and effectiveness was verified; A combined simulation model was built based on the special structure and inductance model of the motor, and this paper adopted a three phase six-state angle conduction mode which could increase the output torque and reduce the torque ripple; Composite excitation current-torque control was proposed based on the adjustable flux characteristic of central assisted excitation coil. The experiments results show that the feasibility and effectiveness of the prototype with a new structure and control method.关键词
双凸极无刷直流电机/线圈辅助定子励磁/磁场调节/三相六状态/励磁电流−转矩控制Key words
doubly salient brushless direct current motor/coil assisted stator excitation/magnetic field adjustment/three phase six state/excitation current-torque control分类
信息技术与安全科学引用本文复制引用
刘爱民,娄家川,任达,孙鹏..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[J].中国电机工程学报,2017,37(21):6246-6254,9.基金项目
国家自然科学基金项目(51377107,51777131).The National Natural Science Foundation of China (51377107, 51777131). （51377107,51777131）
