[1]董剑宁,陈艳龙,黄允凯,等.圆筒型无铁心永磁直线电机空载磁场解析计算[J].东南大学学报(自然科学版),2013,43(3):515-519.[doi:10.3969/j.issn.1001-0505.2013.03.013] 　Dong Jianning,Chen Yanlong,Huang Yunkai,et al.Analytical calculation of no-load magnetic field of tubular ironless permanent magnet linear motor[J].Journal of Southeast University (Natural Science Edition),2013,43(3):515-519.[doi:10.3969/j.issn.1001-0505.2013.03.013] 点击复制 圆筒型无铁心永磁直线电机空载磁场解析计算() 分享到： var jiathis_config = { data_track_clickback: true };

43

2013年第3期

515-519

2013-05-20

文章信息/Info

Title:
Analytical calculation of no-load magnetic field of tubular ironless permanent magnet linear motor

Author(s):
School of Electrical Engineering, Southeast University, Nanjing 210096, China

Keywords:

TM302
DOI:
10.3969/j.issn.1001-0505.2013.03.013

Abstract:
An analytical method is presented to predict the magnetic field of the axial magnetized tubular ironless permanent magnet linear motor(TIPMLM)based on the magnetic charge method in the cylindrical coordinate system. The no-load magnetic field distribution is analyzed, the expressions of the axial and radial components of which are derived. By combining the motor parameters, the back electromotive force(EMF)and thrust force are derived. Then the no-load field distribution, back EMF and thrust force of a TIPMLM are calculated by using the proposed method and the finite element method(FEM), separately. Finally, the effect of load current on the magnetic field of the motor is analyzed by FEM. It is shown that the results of the proposed analytical method and FEM are very close to each other, which verifies the proposed analytical method. The effect of load current on the magnetic field distribution on the surface of the permanent magnets is negligible, which is one of the merits of the investigated motor structure.

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