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Characteristic analysis of traction power transformer with coupling finite element method of magnetic field and circuit

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2 Author(s)
Zhao Lu ; Key Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering Chinese Academy of Science, Beijing, 100190, China ; Li Yao-hua

In this paper, a coupling finite element method (FEM) of magnetic field and circuit of traction power transformer is established, including a two-dimensional finite element model and four-quadrant rectifier circuit. The no-load and short-circuit characteristics of traction power transformer are calculated and the value of impedance voltage is given. The space distributions of flux density, magnetic force line of traction power transformer are painted. The values and waveforms of the core loss and copper loss are calculated. The leakage inductance of the transformer replaces the input inductance of four-quadrant rectifier circuits which includes outer voltage PI control and inner current PR control. From the simulation results, it can be seen that the power factor is nearly one and the DC bus voltage is constant.

Published in:

Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on

Date of Conference:

16-18 April 2011