Research on Field-Circuit Coupled Model of EBE Finite Element Method

A field-circuit strong coupled model of element-by-element finite element method (EBE-FEM) is derived, and the mathematical model is presented in this paper. EBE-FEM is a parallel algorithm in which large-scale global computations are decomposed into mutually independent local computations without assembling the global coefficient matrix. The proposed method has been applied to analyze the magnetic field and current of transformer, and the validity has been verified. The method can be applied to the field-circuit coupled analysis of large-scale power equipment.