摘要
中速磁浮列车采用单边长初级无铁心永磁直线同步电机(IPMLSM)作为牵引电机,因为这种电机具有结构简单、运行平稳、无轮轨摩擦以及法向吸引力接近于0等优点,但是由于该电机定子无铁心,导致其推力密度较小,且永磁材料使用过多及定子绕组沿轨道长距离铺设,使电机效率进一步降低。为了提高电机性能,在IPMLSM基本结构的基础上,提出一种新型永磁体装配结构,可提升电机推力密度;并根据长定子IPMLSM绕组的特点,优化绕组导体截面,获得适用于中速磁浮列车IPMLSM定子绕组导体的宽与高之比,进一步提升电机的推力密度。最后,制作IPMLSM小型样机实验装置,对比实验结果验证了所提改进结构的优越性。
The middle speed maglev train adopts the single-side long primary ironless permanent magnet linear synchronous motor(IPMLSM)as the traction motor,because this motor has a great many of advantages,such as simple structure,stable operation,no wheel-rail friction and the normal attraction being close to zero.However,this kind of motor has lower thrust and efficiency compared with other motors because of ironless and long stator.Based on the basic structure of IPMLSM,a new type of permanent magnet assembly structure was proposed,which can improve the thrust of IPMLSM.As for the primary of the motor,the influence of the ratio of conductor width to height on the thrust was discussed,so as to obtain the appropriate ratio.The calculation results show that the proposed ratio of conductor width to height can improve the motor thrust,which provides a reference for the design of IPMLSM of different sizes.Finally,the experiment vehicle of IPMLSM was designed and manufactured which verifies the superiority of the proposed structure.
作者
王辉煌
杜玉梅
张瑞华
张俊康
李正浩
郭科宇
王培龙
WANG Huihuang;DU Yumei;ZHANG Ruihua;ZHANG Junkang;LI Zhenghao;GUO Keyu;WANG Peilong(Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;State Grid Quanzhou Power Supply Company,Quanzhou 362000,China;China North Vehicle Research Institute,Beijing 100084,China)
出处
《电机与控制学报》
EI
CSCD
北大核心
2023年第5期46-55,共10页
Electric Machines and Control
基金
国家重点研发计划(2016YFB1200601-B18)。
