Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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3-Dimensional Magnetic Field Analysis of Coil Using Biot-Savart Law Considering Singularity

특이점이 고려된 비오-사바르법을 이용한 3차원 코일의 자계 해석

  • Song, Ho-Jun (Department of Electricl Engineering, Soongsil University) ;
  • Lee, Hyang-Beom (Department of Electricl Engineering, Soongsil University)
  • Published : 2005.10.20
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Abstract

In this paper, 3-dimensional magnetic field of coil is analyzed by using biot-sarvart law considering singularity. The RMSP(reduced magnetic scalar potential) arc employed in order to reduce the number of unknown variables in FEM(Finte Element Analysis) or BEM(Boundary Element Method). It Is necessary to calculate magnetic field of souce current when RMSP is used. Biot-savart law is generally used. it is difficult to calculate the field when the source point is in inside the coil. To integrate using gaussian quadrature, the cross section of coil is divided considering the position of field point when field point is inside coil. The proposed method shows good agreement of magnetic field compared with FEMLAB, OPERA3D.

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