Abstract
In this paper, method for modeling and measuring oriented silicon steel sheet excited by pulse width modulation (PWM) signal is proposed in this paper. The magnetic property test platform of oriented silicon steel sheet excited by PWM power is established. According to the experimental data of magnetization mechanism and magnetic properties of silicon steel sheet, combined with Preisach model, the hysteresis model of silicon steel sheet under PWM excitation is established. It provides an accurate material parameter model for calculating the magnetic field distribution of laminated iron core of product grade transformer.
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