Abstract
The integrated transmission of power and data is a promising technology in various wireless power transfer (WPT) application scenarios. In this work, a novel simultaneous power and data transfer (SPDT) technology for domino-resonator WPT systems is proposed. The frequency shift keying (FSK) power modulation method is adopted in dual-resonance-band circuits to maintain high system transfer efficiency at two different frequencies. Considering the cross-coupling between nonadjacent resonators, the system operating frequencies shift slightly away from the circuit resonant frequencies, and the same constant output voltage (CV) characteristics can be always guaranteed with different data sequences. Subsequently, a compact coil structure is developed to accommodate the tight space constraint inside the insulator. Finally, aiming at the 35-kV suspension composite insulator with five embedded domino resonators, a 15W experimental prototype is built to realize simultaneous power and data transfer and constant voltage output. The experimental results show that the fluctuation of output voltage is less than 5%, and the overall system transfer efficiency is higher than 75%.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
