High frequency bi-directional AC power transmisssion
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United States of America Patent
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Feb 14, 2017
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N/A
app pub date -
Aug 14, 2015
filing date -
Dec 31, 2013
priority date (Note) -
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Abstract
A method may involve transmitting power between a tethered aerial vehicle equipped with wind turbines for generating power and a ground station configured to interconnect the generated power to an electrical distribution network. The power may be transmitted using high voltage, high frequency AC electrical signals, and transformers at the ground station and the aerial vehicle can scale the AC voltage for use at the respective locations. Converters at the ground station and the aerial vehicle can then convert the transformed voltage to DC. The AC voltage may be transmitted through the tether at a resonant frequency of the tether based in part on an internal capacitance between multiple conductive paths on the tether.
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