Highly Accurate Analysis of Magnetic Field by Local-Expansion Edge Element Method with Boundary Surface Integration

The Local-expansion Edge Element Method (LEEM) enables us to analyze magnetic field more accurately than the ordinary finite element method (FEM). This paper proposes the combination of LEEM and Boundary Surface Integration (BSI) as a post-processing for computational accuracy enhancement. In the proposed method, we also investigate an appropriate virtual boundary configuration for BSI in local-expansion region and achieve highly accurate analysis.