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This paper proposes a decomposed fixed-point harmonic-balanced finite element method (DFPHBFEM) to analyze the nonlinear time-periodic magnetic field in the power transformer. Based on the fixed-point reluctivity, the constitutive relation H-B-M is introduced to establish equation, then locally convergent algorithm (LCA) is used to determine the fixed-point reluctivity in each finite element. The...
The DC biased problem of the Epstein Frame-like core model is investigated by using the Harmonic Balance Finite Element Method (HBFEM). It considers coupling between the electric circuit and the magnetic field. The magnetizing current and its harmonic components can be calculated directly in the harmonic domain. Comparing the calculated results with the experimental data shows consistency. The DC...
The harmonic balance finite element method (HBFEM) is combined with the fixed-point technique to calculate the steady-state magnetic field in a laminated core model (LCM). The magnetic intensity is divided into linear and nonlinear parts in the form of harmonics. The hysteresis model based on the consuming function is taken into account in the harmonic computation. The magnetic field and magnetizing...
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