Abstract
This paper proposes a modeling method of the temperature characteristics of Preisach theory. On the basis of the classical Preisach hysteresis model, the Curie temperature, the critical exponent and the ambient temperature are introduced after which the effect of temperature on the magnetic properties of ferromagnetic materials can be accurately reflected. A simulation analysis and a temperature characteristic experiment with silicon steel was carried out. The results are basically the same which proves the validity and the accuracy of the method.
Highlights
It is important to accurately grasp the magnetic properties of ferromagnetic materials for modeling and simulation of power transformers, voltage transformers and current transformers
A modeling method of the temperature characteristics of Preisach theory is proposed in this paper in which the Curie temperature, the critical exponent, and the ambient temperature of magnetic material are introduced into the classical Preisach hysteresis model
This method can be used to simulate the magnetic properties of ferromagnetic materials at different temperatures to make up the defect that the classical Preisach theory can not simulate the temperature characteristics of ferromagnetic materials
Summary
It is important to accurately grasp the magnetic properties of ferromagnetic materials for modeling and simulation of power transformers, voltage transformers and current transformers. A modeling method of the temperature characteristics of Preisach theory is proposed in this paper in which the Curie temperature, the critical exponent, and the ambient temperature of magnetic material are introduced into the classical Preisach hysteresis model. This method can be used to simulate the magnetic properties of ferromagnetic materials at different temperatures to make up the defect that the classical Preisach theory can not simulate the temperature characteristics of ferromagnetic materials
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