2018 Volume 9 Issue 3 Pages 374-381
Power packet has been realized as a unit of electric power transferred by a pulse power tagged with its voltage waveform. This paper demonstrates covert power packet transfer, a method of hiding information of power packets between the sender and the receiver with keeping power of each variety of packets controllable. Instead of identifying each packet, the proposed system conveys the density of the packets of each variety by modulating the frequency of the information tags. The designated density is realized at the desynchronized receiver by asynchronously sampling the modulated tags. The proposed method enhances the safety of a particular user by ensuring the normally-off power distribution, in which power is supplied to users only when necessary.