Three-phase Transformer Simulation Modelling And The Characteristic To Analyze

The transformer is an important constituent in the electrical power system ,its normally transport relates to the entire electrical power system's security and stability. This article considers the three-phase transformer as the magnetization characteristic in the linear situation,introduced the MATLAB function as well as the programming system, have listed the T equivalent circuit, introducedthe three-phase transformer magnetic circuit system as well as the winding connection. The establishment mathematical model, the process simulation, obtains the result and the theory tallies, finally introduced the magnetic saturation concept.This article take the single phase transformer mathematical model as a foundation, with three independent single phase transformers attributing three-phase transformer's every phase, overthrows the three-phase between the connection equation relations. And then ,establishes the function module in the MATLAB environment, builds the three-phase transformer simulation model.In view of the component model, we carry on the simulation to test the three-phase transformershort circuit and its current voltage ,led the way experimental electric current and current voltage. The simulation result consistent with the sheory.