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The high-frequency transformer is an important device in the modern electrical system, and the performance requirement for this device has recently become more and more important. Thus, it is necessary to model high-frequency transformer accurately and the key is to calculate the capacitance. In this paper, the capacitance of the foil winding in the high-frequency transformer is calculated by using...
Amorphous and nanocrystalline alloys show attractive magnetic properties, and can be the excellent choice to develop the cores of high-frequency high-power transformers used in high-power density renewable power generation systems. However, the electromagnetic design of high-frequency power transformers is a multi-physics problem and thereby affects the system efficiency and cost. In this paper, four...
The 3-D substantial model is built for the bushing end of an ultra-high voltage transformer high-voltage coil and the surrounding of the equipotential shielding. This model is properly simplified according to the symmetrical structure of the coil. The electric field intensity nearby the transformer's high-intense coil and the surrounding of the equipotential shielding are calculated on the basis of...
The 3-D substantial model is built for an ultrahigh voltage transformer coil, the equipotential shielding and the bushing end. This model is properly simplified according to the symmetrical structure of the coil. The electric field intensity around the transformer high-voltage coil and the equipotential shielding are calculated on the basis of the finite element method. It is found that the distribution...
Compared with other known systems, the traveling wave (TW) inductor is considered to be more promising, because it could obtain more uniform heating. In this paper a 2D FEM code has been used with reference to a new double-side slotless TW inductor in order to analyse the distribution of the eddy current density in the moving metal strips. Results show that the slotless TW inductor has a more uniform...
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