电机与控制应用2024，Vol.51Issue(4)：29-39,11.DOI:10.12177/emca.2024.011
轴向磁场电机永磁体空载涡流损耗减小方法对比研究
Comparative Study on Methods for Reducing No-Load Eddy Current Losses of Permanent Magnets in Axial Magnetic Field Motors
摘要
Abstract
The main methods to reduce the no-load eddy current loss of permanent magnets of axial magnetic field motors include:reducing the width of the stator slot opening,increasing the length of the air gap,dividing the permanent magnet into blocks,using shielding layers and magnetic slot wedges,etc.Based on a simplified 2D analysis model of a permanent magnet axial field motor,the effects of reducing stator slot opening width and increasing air gap length,using shielding layers and magnetic slot wedges to reduce no-load eddy current losses are analyzed.The effects of different segmentation methods of permanent magnets on reducing no-load eddy current losses are studied through three-dimensional electromagnetic field simulation.The research results indicate that reducing the width of the stator slot opening has the best effect;although increasing the length of the air gap can significantly reduce eddy current losses,the amount of permanent magnets used increases rapidly;the segmented permanent magnet has a better effect on reducing eddy currents,and the circumferential segmentation method is the best;the shielding layer has a counterproductive effect;the effect of using segmented magnetic slot wedges is slightly worse than reducing the width of stator slot openings,but the processing technology difficulty is lower.关键词
轴向磁场电机/涡流损耗/简化二维分析模型/永磁体分块/屏蔽层/磁性槽楔Key words
axial magnetic field motors/eddy current losses/simplified 2D analysis model/magnet segmentation/shielding layer/magnetic slot wedge分类
信息技术与安全科学引用本文复制引用
刘龙建,韩坤..轴向磁场电机永磁体空载涡流损耗减小方法对比研究[J].电机与控制应用,2024,51(4):29-39,11.基金项目
国家自然科学基金(52007072) （52007072）
云南省基础研究计划项目(202301AS070055)National Natural Science Foundation of China(52007072) （202301AS070055）
Yunnan Province Basic Research Program Project(202301AS070055) （202301AS070055）
