Halbach磁体阵列无铁心直线同步电机的性能分析  

Performance Analysis of Halbach Magnet Array Coreless Linear Synchronous Motor

作　　者：姚艺华 印欣 卢琴芬[2] YAO Yihua;YIN Xin;LU Qinfen(Akribis Systems(Shanghai)Co.,Ltd.,Shanghai 201202,China;College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]雅科贝思精密机电(上海)有限公司,上海201202 [2]浙江大学电气工程学院,杭州310027

出　　处：《微特电机》2025年第4期10-14,38,共6页Small & Special Electrical Machines

摘　　要：以3槽4极Halbach磁体阵列无铁心直线电机为研究对象,通过有限元建模与遗传算法优化相结合的方法,深入分析了矩形磁体分段数、宽度及背铁材料对电机性能的影响。研究结果表明,背铁材料与磁体分段数是决定磁体优化尺寸的关键因素,当背铁采用铁磁材料时,增加磁体分段数可有效提升电机电磁性能,提高平均推力、降低推力波动并减小漏磁,但是会导致U形两排磁体间的吸引力和电机的机械强度增大,使得制造成本上升、经济性降低。因此,实际应用中需要综合考虑性能与经济性的基础上选择优化设计方案。A coreless linear motor with a 3-slot 4-pole Halbach magnet array was investigated as the research object,employing a combined approach of finite element modeling and genetic algorithm optimization to thoroughly investigate the influence of the number of magnet segments,their width and the back iron material on motor performance.The research results indicated that the back iron material and the number of magnet segments were critical factors determining the optimal magnet dimensions.When the back iron employed magnetic material,increasing the number of magnet segments could effectively enhance the performance of motor,including increasing average thrust,reducing thrust ripple and lowering leakage flux.The attractive force between two sides of U-shaped secondary and mechanical strength was elevated,leading to increased manufacturing costs and diminished economy effeciency.Therefore,selecting the optimal design scheme in practical applications requires a balanced consideration of performance and economy efficiency.

关 键 词：Halbach磁体阵列 无铁心直线电机 分段磁体 遗传算法 电机性能 

分 类 号：TM359.9[电气工程—电机]