Finite Element Analysis of Nonlinear Magnetic Devices Combined with Circuit Equations by Tableau Approach

When simulating electric machines, the magnetic field analysis and the circuit calculation are coupled closely. We present a method in which the combination of Maxwell\u27s equations and circuit equations is solved simultaneously. The tableau approach as nodal formulation is applied to the circuit model. This paper describes a new generalized approach for considering the external networks in the harmonic balance finite element method we proposed. The approach is applied to the analysis of a magnetic frequency tripler with circuit elements