Two Phase Simulation Of The Magnetic Properties Of Magnetic Material And Its Application In Electrical Equipment Research

In recent years, with the construction of smart grid, the optimization design of the electrical equipment is attracting more and more attention. The DC Bias Phenomena of Large Power Transformers have affected the normal operation of the power grid. At the same time, the consumption of reactive power from electrical equipment is increasing day by day. It led to the worsened grid power quality. Therefore, building upon prior research, this paper will focus on discussing the research on using two-phase magnetic materials for new electrical equipment.First of all, hysteresis model is established based on the Preisach model theory. We calculated the hysteresis to get characteristic of the two phase composite magnetic materials. Through the experiment, we measured the performance of four kinds of two phase composite magnetic materials limit hysteresis loop back to obtain the relationship between the compensation core remanence and motivation. Based on the micro magnetic theory, to establish the nano two-phase composite magnetic materials, magnetic hysteresis model of three layers of the membrane are used to calculate the thickness of soft magnetic nano two-phase composite magnetic materials and material hysteresis characteristics. Then we would be able to obtain the soft magnetic thickness and the relationship between the coercive forces.Secondly, using Preisach hysteresis model theory of nano two-phase composite magnetic material composition and function, microstructure, preparation technology, two phase transition process and the main magnetic were studied. We combined it with the element composition and heat treatment process of two phase by analyzing the influence of magnetic material. Then the suitable two phase composite magnetic materials were found.Next, the two-phase composite magnetic materials used in the core of new type transformer compensation, when the dc bias phenomenon occurs, the magnetization, the core control system of compensation for make to offset the remanent magnetism dc magnetic flux compensation core; When no dc bias, through the control system to compensate the core demagnetization, make its normal work does not affect the transformer. And through the experiment measuring the magnetic properties of silicon steel sheet in the transformer core, the simulation verification, verify the feasibility of the structure. Through the prototype experiments, prove that the new type of power transformer dc bias inhibitory effect.Lastly, the two-phase magnetic material were used in new type controlled reactor and intelligent circuit breaker. New type controlled reactor can change the system to distribute reactive power by reducing reactive power loss to achieve continuous adjustment and harmonic power. New type of circuit breaker can overcome the traditional breaker weakness of oversize, too much power consumption, low accuracy, low speed, and other issues in its complex structure.The experimental results show that the two-phase power transformer magnetic materials will realize automatic inhibition of dc bias. The dc bias established a solid foundation for the further study of the problem. At the same time, new type controlled reactor and intelligent circuit breaker once optimized will reduce reactive power loss and improve power quality of power grid.