摘要
通过ANSYS Maxwell有限元分析软件进行电磁驱动力计算,研究功率超过20 kW、理论效率高于90%的直线电机中各部件尺寸对性能的影响。结果表明电机整体尺寸越大,额定功率越高,但磁饱和强度可能也会增大。线圈的截面积、永磁体的厚度以及内外铁芯的截面积对电机的性能影响较大,线圈的截面积增加,电机效率增加,而磁体和内外铁芯需要在满足设计目标的基础上尽量减小尺寸,以提高电机紧凑性和性能收益。
ANSYS Maxwell finite element analysis software was used in this work to calculate the electromagnetic driving force.The effect of component size on performance in linear motor with power over 20 kW and theoretical efficiency over 90%were studied.The simulation results show that the larger the motor,the higher the rated power,but the magnetic saturation strength may also increase.The cross-sectional area of coil,inner magnet yoke and outer magnet yoke as well as the thickness of permanent magnet have great influence on the performance of the linear motor.With the increase of coil cross-section area,the motor efficiency increases.In order to improve the compactness and performance of the motor,the magnet and yoke need to be as small as possible based on the design goals.
作者
陈萌佳
朱绍伟
Chen Mengjia;Zhu Shaowei(Institute of Refrigeration and Cryogenics,School of Mechanical Engineering,Tongji University,Shanghai 201804,China;Shanghai Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems,Tongji University,Shanghai 201804,China)
出处
《低温工程》
CAS
CSCD
北大核心
2020年第4期59-67,共9页
Cryogenics
关键词
脉管制冷机
直线电机
大功率
有限元分析
pulse tube refrigerator
linear motor
high capacity
finite element analysis
