| U型无铁心永磁同步直线电机磁场建模与分析 |
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| 引用本文： | 李争,张家祯,王群京.U型无铁心永磁同步直线电机磁场建模与分析[J].航空动力学报,2018,45(2):75-80. |
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| 作者姓名： | 李争 张家祯 王群京 |
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| 作者单位： | 河北科技大学 电气工程学院,河北 石家庄050018,河北科技大学 电气工程学院,河北 石家庄050018,安徽大学 高节能电机及控制技术国家地方联合工程实验室,安徽 合肥230601 |
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| 基金项目： | 国家自然科学基金项目(51577048,51637001,51107031)；河北省留学人员科技活动项目择优项目(C2015003044)；高节能电机及控制技术国家地方联合工程实验室开放课题基金项目(KFKT201601) |
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| 摘 要： | 传统的铁心式直线电机由于铁心开断的影响,造成了横向和纵向边端效应,使推力输出波动较大；无铁心永磁直线电机具有零齿槽效应的优点,结构简单,控制灵活。采用两种解析法求解无铁心永磁同步直线电机气隙磁场的问题,即等效磁势法和等效磁化电流法,同时采用有限元法对电机磁场进行有限元分析,验证解析法磁场解析计算的准确性。最后分析电机主要尺寸对气隙磁场的影响。通过改变电机参数,进行了优化设计,为同类电机的设计与分析提供了参考。
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| 关 键 词： | 无铁心 直线电机 磁场分析 解析法 有限元法 |
Magnetic Field Modeling and Analysis of U-Shaped Ironless PermanentMagnet Synchronous Linear Motor |
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| LI Zheng,ZHANG Jiazhen and WANG Qunjing.Magnetic Field Modeling and Analysis of U-Shaped Ironless PermanentMagnet Synchronous Linear Motor[J].Journal of Aerospace Power,2018,45(2):75-80. |
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| Authors: | LI Zheng ZHANG Jiazhen and WANG Qunjing |
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| Institution: | School of Electrical Engineering,Hebei University of Science and Technology, Shijiazhuang 050018, China,School of Electrical Engineering,Hebei University of Science and Technology, Shijiazhuang 050018, China and National Engineering Laboratory of Energy-saving Motor & Control Technique, Anhui University,Hefei 230601, China |
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| Abstract: | Due to the influence of the core breaking, the traditional iron core linear motor had the end-effect of lateral and vertical side, which made the output of the thrust line fluctuate greatly. The ironless permanent magnet synchronous linear motor has the advantages of zero slot effect, simple structure and flexible control. Based on the analysis of air gap magnetic field ironless permanent magnet synchronous linear motor problems by using two kinds of analytical method, namely equivalent magnetic potential method and the equivalent magnetizing current method, and the finite element analysis of the magnetic field using the finite element method. The analytical method for magnetic field analysis was verified to be accurate. By changing the motor parameters, the optimization design was achieved, which provided the reference for the design and analysis of same kind of motors. |
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| Keywords: | ironless linear motor magnetic field analysis analytical method finite element method |
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