Research on Magnetic Device Model of Nonlinear Inductance Combined with Transformer and Inductor

Abstract

Abstract: A modeling method of magnetic device combining transformer and inductance was put forward. The modeling method reflects characteristics of magnetic and electric circuit simultaneously, and reflects parasitic parameters with capacitance. And the physical concepts of parameters are clear in the model. The interface model reflecting magnetic and electric circuit was established through ideal transformer based on electromagnetic theory, and nonlinear inductance simulation model reflecting hysteresis effect through derivation was obtained. The hysteresis loop of inductance actual simulation and that from magnetic core manual agreed well, proving the correctness and effectiveness. By modeling method in the proposed magnetic device, coupling inductance modeling was analyzed through the method, and the result of simulation shows that the modeling method is practical.

Key words: magnetic device, mathematical model, simulation model, nonlinear, hysteresis B-H curve

CLC Number:

TM41

Li Hongzhu, Sun Jiayue, Qi Qingjie, Wang Qiao. Research on Magnetic Device Model of Nonlinear Inductance Combined with Transformer and Inductor[J]. Journal of System Simulation, 2016, 28(3): 516-525.

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