An extension of Takács model for hysteresis loop representation of single-phase transformer

Hyperbolic Takács model has been accepted and widely used for hysteresis loop representation of magnetic materials. In this paper, the original Takács model is extended to include Gaussian function for accuracy improvement of soft magnetic material. The modified hysteresis model is then incorporated into single-phase transformer model in the Matlab/Simulink environment. An accuracy of the modified Takács model is verified by comparing input current responses obtained from measurement and computation. The results show good agreements of the measured and simulated current waveforms of 1kVA 220/110V transformer.