摘要
永磁游标电机具有高转矩密度,直接驱动等优点,在低速大转矩、宽速度范围运行等领域有较好的发展前景。文中提出了一种新型双定子永磁游标电机,介绍了该电机的结构、工作原理以及磁路走势,并以内、外定子均为4对极为例,利用有限元法与转子内部有隔磁层的电机进行了对比仿真分析,结果表明,无隔磁层的新型双定子永磁游标电机具有转子空间利用率高、电机饱和程度和谐波含量低、气隙磁场增速效果优、输出电压波形正弦性好等优点;通过对外定子齿开辅助槽的方式减小了转矩脉动,提升了电机的性能。
Permanent magnet vernier machine(PMVM)has the advantages of high torque density,direct drive and so on.It has a good development prospect in the low speed,large torque and wide speed range operation fields.In this paper,a new double-stator PMVM is developed.The structure,working principle and magnetic circuit trend of the machine are introduced.The machine is simulated with 4 pole-pairs in both inner and outer stator.The finite element method is used to carry out comparative simulation analysis with magnetic insulation layer inside the rotor.The results show that the new double-stator PMVM without magnetic insulation layer has the advantages of high rotor space utilization rate,low saturation degree and harmonic content,excellent air gap magnetic field speed-up effect and good sinusoidal output voltage waveform.The torque ripple is reduced and the performance of the machine is improved by opening the auxiliary slots to outer stator teeth.
作者
王群京
任泰安
田杰
阚超豪
储国良
WANG Qunjing;REN Taian;TIAN Jie;KAN Chaohao;CHU Guoliang(Anhui Provincial Key Laboratory of Industrial Electricity Saving and Safety,Anhui University,Hefei 230039,China;Industrial Training Center,Hefei University of Technology,Hefei 230601,China;School of Electrical and Automation Engineering,Hefei University of Technology,Hefei 230009,China;State Grid Anqing Power Supply Company,Anqing 246000,Anhui,China)
出处
《机械科学与技术》
CSCD
北大核心
2021年第10期1555-1560,共6页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51377040)
安徽省工业节电与用电安全重点实验室开放课题(KFKT201905)
中央高校基本科研业务费专项资金
磁浮技术与磁浮列车教育部重点实验室开放课题及电力传输与功率变换控制教育部重点实验室开放课题(2020AC03)。
关键词
永磁游标电机
工作原理
隔磁层
磁场增速
转矩脉动
permanent magnet vernier machine
working principle
magnetic barrier
magnetic field increasing
torque ripple
