Identification of Magnetization Characteristics of Material From Measured Inductance Data

This paper introduces a novel identification method of the magnetization properties of the core material for an inductor from measured inductance data. The proposed method allows us to obtain the magnetic hysteresis characteristics without a special measurement instrument for material B-H properties. The proposed method determines the parameters included in the distribution function for the Preisach model from the measured L-I characteristics. It is shown that the identified initial magnetization curve and the minor loops are in good agreement with the original B-H curves. The uniqueness for the identification problem is numerically verified.