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This paper mainly studies the distance transmission characteristics of magnetic resonance WPT system and methods to improve the transmission distance. The mutual model is used to explain the working principle of magnetic resonance WPT system, while the transfer characteristic expression of distance is obtained by theoretical analysis of the system. On the basis of the above research, further study...
Wireless power transmission region stands out for its convenience in the applications where several terminals or movable terminals need to be charged. The conventional single coil excited charging region has the drawback of distance and angle limitation. To overcome the shortcoming, a charging region which is constructed by four emitting coils is proposed in this paper. This four emitting coils configuration...
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...
Combination of wavelet packet theory and through deep analysis of distribution network single-phase ground short circuit transient process, a new line selection method which bases on wavelet packet feature band extraction and singularity analysis is proposed .The method of the line selection basic, principle as well as step are introduced. The simulation experiment indicates that this method improves...
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