|Table of Contents|

Eddy Current Loss Analysis of Exterior Metal Dielectric for Electromagnetic Coupling Structure in Fuze Wireless Power Supply System

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2011年03期
Page:
347-351
Research Field:
Publishing date:

Info

Title:
Eddy Current Loss Analysis of Exterior Metal Dielectric for Electromagnetic Coupling Structure in Fuze Wireless Power Supply System
Author(s):
LI Chang-shengZHANG HeZHA Bing-ting
ZNDY of Ministerial Key Laboratory,NUST,Nanjing 210094,China
Keywords:
fuzes wireless power supply electromagnetic coupling metal dielectric eddy currents loss magnetic shields
PACS:
TJ430.3
DOI:
-
Abstract:
According to the coupling structure of primary and secondary coil enwrapped by metal dielectric in fuze wireless power supply system,a mathematical model of eddy current loss in metal dielectric is established to decrease the serious eddy current loss in metal tube.The analytical expressions of eddy current loss is deduced by solving Maxwell ’ s equations.ANSYS simulation software is used to analyze and compare the effects of magnetic shielding method and slotting method to reduce eddy current loss.Experiment and simulation results show that the exterior magnetic field can be bound in the magnetic shielding layer by enwrapping a thin permalloy layer around the primary coil,and the eddy current loss is effectively reduced.This method is better than slotting in the metal tube.

References:

[1] 黄学功,陈荷娟. 炮口感应装定引信电路低功耗设 计[J]. 南京理工大学学报, 2007, 31( 5) : 550 - 553.
[2] 李长生,张合,张祥金. 考虑弹体中涡流影响的引信 感应装定能量和信息传输通道模型[J]. 探测与控 制学报, 2009, 31( 6) : 5 - 10.
[3] Yann L B. Study on the transformer equivalent circuit of eddy current nondestructive evaluation[J]. NDT&E International, 2003, 36( 5) : 297 - 302.
[4] 石磊. 引信感应装定能量传输研究[D]. 南京: 南京 理工大学机械工程学院, 2007.
[5] 黄学功,赖百坛,李映平,等. 炮口感应装定系统电 磁场特性分析[J]. 弹道学报, 2003, 15( 2) : 68 - 72.
[6] 马少杰,张合,李长生,等. 小口径火炮引信弹链电 磁感应装定仿真分析[J]. 兵工学报,2009,30( 4) : 419 - 424.
[7] 胡文江,胡先权. 似稳条件下导体圆柱面内的电流 分布的求解[J]. 重庆大学学报( 自然科学版) , 2001, 24( 4) : 55 - 57.
[8] 毛行奎,陈为. 反激式变换器的变压器线圈涡流损 耗机制分析与新型损耗模型[J]. 中国电机工程学 报, 2009, 29( 3) : 29 - 35.
[9] Acero J,Alonso R,Barragan L A, et al. Magnetic vector potential based model for eddy-current loss calculation in round-wire planar windings[J]. IEEE Transactions on Magnetics, 2006, 42( 9) : 2152 - 2158.
[10] 王一平. 工程电动力学[M]. 西安: 西安电子科技大 学出版社, 2007.
[11] 肖冬萍,何为,石小波,等. 有限宽金属平板对工频 磁场的屏蔽[J]. 电机与控制学报,2008,12 ( 1) : 42 - 46.
[12] 严密,彭晓领. 磁学基础与磁性材料[M]. 杭州: 浙 江大学出版社, 2006.
[13] 闫照文. ANSYS10. 0 工程电磁分析技术与实例详解 [M]. 北京: 中国水利出版社, 2006. 351

Memo

Memo:
-
Last Update: 2012-06-30