Abstract
The magnetic equivalent circuit (MEC) method has been used to model the nonlinear magnetic field in electromagnetic devices for steady-state and dynamic conditions. However, for highly saturated electromagnetic devices, the conventional MEC method is inaccurate in predicting device characteristics. With experience gained from the finite element (FE) method, the MEC method can be modified to provide significant accuracy improvement in the field solution results. The main modification is done in the modeling of the highly saturated regions. The improved magnetic equivalent circuit (IMEC) is used to predict the characteristics of a switched reluctance motor (SRM). The results from IMEC are compared with those obtained by conventional MEC, FE methods and measurements.
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