Integral methods for analysis and design of low-frequency conductive shields

被引:33
作者
Canova, A [1 ]
Gruosso, G
Repetto, M
机构
[1] Politecn Torino, Dipartimento Ingn Elect Ind, I-10129 Turin, Italy
[2] Politecn Milan, Dipartimento Elettron & Informaz, I-20133 Milan, Italy
关键词
conductive shielding; extremely low frequency; ffnite formulation of electromagnetic fields; thin conductor;
D O I
10.1109/TMAG.2003.812718
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents and compares two different approaches to the analysis and design of nonferrous shields for extremely low-frequency magnetic fields. The first method is based on a circuital approach where the shield is modeled by a set of conductors coupled with each other by a matrix of self and mutual inductances. The second technique is based on an algebraic formulation of electromagnetic fields and adapted by means of integral equations to the analysis of thin conductive sheets. The paper shows the accuracy of the two methods for calculating induced current density inside the shield and for evaluating magnetic flux density in the shielded region.
引用
收藏
页码:2009 / 2017
页数:9
相关论文
共 15 条
[1]   Role of magnetic materials in power frequency shielding: numerical analysis and experiments [J].
Bottauscio, O ;
Chiampi, M ;
Chiarabaglio, D ;
Fiorillo, F ;
Rocchino, L ;
Zucca, M .
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 2001, 148 (02) :104-110
[2]  
Bottauscio O, 1999, SOFTWARE STUDIES, V2, P85
[3]   Numerical and experimental evaluation of magnetic field generated by power busbar systems [J].
Bottauscio, O ;
Carpaneto, E ;
Chiampi, M ;
Chiarabaglio, D ;
Panaitescu, I .
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 1996, 143 (05) :455-460
[4]   Evaluation of different analytical and semi-analytical methods for the design of ELF magnetic field shields [J].
Canova, A ;
Manzin, A ;
Tartaglia, M .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2002, 38 (03) :788-796
[5]  
CANOVA A, 2001, P 5 INT C APPL EL NI, V15, P151
[6]  
CANOVA A, 2002, 4 INT C COMP EL CEM
[7]   Principles of power-frequency magnetic field shielding with flat sheets in a source of long conductors [J].
Du, YP ;
Cheng, TC ;
Farag, AS .
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 1996, 38 (03) :450-459
[8]   A circuital approach to estimate the magnetic field reduction of nonferrous metal shields [J].
Frix, WM ;
Karady, GG .
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 1997, 39 (01) :24-32
[9]  
Grover F W., 1947, Inductance Calculations, Working Formulas and Tables
[10]   A three dimensional analysis of magnetic fields around a thin magnetic conductive layer using vector potential [J].
Igarashi, H ;
Kost, A ;
Honma, T .
IEEE TRANSACTIONS ON MAGNETICS, 1998, 34 (05) :2539-2542