3-D Magnetostatic Field Calculation by a Boundary Integral Equation Method using a Difference Field Concept

Difference field 개념의 경계적분방정식을 이용한 3차원 정자장 해석

For an accurate analysis of three dimensional linear magnetostatic problems, a new boundary integral equation formulation is presented. This formulation adopts difference magnetic field concept and uses single layer magnetic surface charge as unknown. The proposed method is capable of eliminating numerical cancellation errors inside ferromagnetic materials. In additions, computing time and storage memory are reduced by 75% in comparison with the reduced and total scalar potential formulation. Two examples are given to show its efficiency and accuracy.