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This paper models simplified transformer winding model by multi-conductor transmission line (MTL) model. Because inductance and resistance of transformer winding are frequency-dependent parameters, frequency effect on parameters should be considered when calculating distributed parameter matrices. Then, when solving for voltage distribution of winding model, the distributed parameter matrices should...
This paper uses multi-conductor transmission line (MTL) to model transformer winding. Firstly, distributed parameters should be computed. According to capacitance, inductance and resistance parameter, transmission line equation can be solved by input terminal impedance method. Thus, voltage distribution in transformer winding can be obtained by solving MTL equation. In this paper, only voltage distribution...
This paper uses multi-conductor transmission line (MTL) to model transformer winding. According to capacitance, inductance and resistance parameter, transmission line equation can be solved by input terminal impedance method. Thus, voltage distribution in transformer winding can be obtained by solving MTL equation. In this paper, only voltage distribution at single frequency excitation is calculated...
This paper uses multi-conductor transmission line (MTL) to model transformer windings. According to the symmetry of windings, a 2D equivalent finite element model can be set up under ANSYS environment. On the basis, finite element method (FEM) is used to calculate the distributed parameters in transformer windings. In the process of calculation, the skin effect is focused on. The frequency-dependent...
Inductance gradient has great influence on the performance of railgun. This paper deduced armaturepsilas force formulation, explained inductance gradientpsilas physical meaning, introduced the governing equation of 2-D time harmonic electromagnetic field, built railgunpsilas 2-D finite element model; a common structure railgunpsilas inductance gradient is calculated. The influence of time harmonic...
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