An Implementation Method of Incorporating Hysteretic Material Models into Electromagnetic FEA

Hysteresis, as most important and intrinsic property of magnetic materials, however, is usually neglected in numerical analysis of electrical equipment due to its complicated history-dependent multi-valued nonlinearity, which will lead to inaccurate predictions of magnetic fields distribution and core loss. In this paper, an efficient implementation method of incorporating hysteretic material models into electromagnetic analysis is presented resorting to a commercial FEA package. This method is characterized by strong universality, and can be easily applied to other complex magnetic property models regarding anisotropy or hysteresis.