[1]陈中显,余海涛,胡敏强.一种改进的永磁直线电机气隙磁场解析计算方法[J].东南大学学报(自然科学版),2014,44(6):1181-1186.[doi:10.3969/j.issn.1001-0505.2014.06.016]
　Chen Zhongxian,Yu Haitao,Hu Minqiang.An improved analytical calculation method of air gap magnetic field distribution of permanent magnet linear machine[J].Journal of Southeast University (Natural Science Edition),2014,44(6):1181-1186.[doi:10.3969/j.issn.1001-0505.2014.06.016]
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一种改进的永磁直线电机气隙磁场解析计算方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第6期
页码:
1181-1186
栏目:
电气工程
出版日期:
2014-11-20

文章信息/Info

Title:
An improved analytical calculation method of air gap magnetic field distribution of permanent magnet linear machine
作者:
陈中显; 余海涛; 胡敏强
东南大学电气工程学院, 南京 210096
Author(s):
Chen Zhongxian;  Yu Haitao;  Hu Minqiang
School of Electrical Engineering, Southeast University, Nanjing 210096, China
关键词:
永磁直线电机;  许-克变换;  气隙磁场分布;  解析方法
Keywords:
permanent magnet linear machine;  Schwarz-Christoffel mapping;  air gap magnetic field distribution;  analytical method
分类号:
TM351
DOI:
10.3969/j.issn.1001-0505.2014.06.016
摘要:
为了更加准确地计算永磁直线电机矩形开槽情况下的气隙磁场分布,提出了一种改进的许-克变换解析计算方法.首先,采用等效磁化电流法,建立永磁直线电机初级铁芯无槽情况下的气隙磁场模型;其次,根据永磁直线电机的结构尺寸,并考虑初级铁芯矩形开槽的影响,对传统的许-克变换方法加以改进;然后,利用改进的许-克变换方法,解析计算矩形开槽永磁直线电机的气隙磁场分布.理论分析和真实的数据计算结果表明,与传统的许-克变换方法相比,所提出的方法更接近于有限元软件的计算结果.最后,根据改进的许-克变换解析计算方法,对电机气隙磁场分布进行优化设计,试制了一台短次级圆筒型永磁直线发电机.
Abstract:
An improved analytical calculation method based on Schwarz-Christoffel mapping is proposed to calculate the accurate air gap magnetic field distribution of rectangular shape permanent magnet linear machine. First, an air gap magnetic field model without considering slot effect is built by the equivalent magnetizing current method. Secondly, the traditional Schwarz-Christoffel mapping is improved by considering the structure size and rectangular slot effect of permanent magnet linear machine. Then, the air gap magnetic field distribution of rectangular slot permanent magnet linear machine is calculated by the improved Schwarz-Christoffel mapping. The detailed theory analysis and calculation results show that, compared with the traditional Schwarz-Christoffel mapping, the proposed method is more consistent with finite element analysis. Finally, a short secondary tubular permanent magnet linear generator is constructed by using the improved Schwarz-Christoffel mapping.

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备注/Memo

备注/Memo:
收稿日期: 2014-05-10.
作者简介: 陈中显(1984—),男,博士生;余海涛(联系人),男,博士,教授,博士生导师,htyu@seu.edu.cn.
基金项目: 国家海洋局海洋可再生能源专项资金资助项目(GHME2011GD02).
引用本文: 陈中显,余海涛,胡敏强.一种改进的永磁直线电机气隙磁场解析计算方法[J].东南大学学报:自然科学版,2014,44(6):1181-1186. [doi:10.3969/j.issn.1001-0505.2014.06.016]
更新日期/Last Update: 2014-11-20