研究目的
To present a nonlinear model of the magnetic field in a conductive ferromagnetic medium using the harmonic balance method and the finite element method, and to compare the values of eddy current losses determined by this method with those obtained by applying the monoharmonic approach.
研究成果
The harmonic balance method combined with the finite element method provides a more accurate computation of eddy current losses in a conductive ferromagnetic medium compared to the monoharmonic method. The use of effective magnetization curves calculated by energy methods gives larger specific loss values than the harmonic balance finite element method.
研究不足
The harmonic balance method requires more computer memory due to the larger size of the resulting matrix of the equations system. The method also has a more complex structure in the presence of eddy currents, requiring more effective methods for solving.
