TY - GEN
T1 - Frequency Tuning of the Resonant Wireless Energy Transfer System
AU - Baikova, Elena N.
AU - Baikov, Alexandre V.
AU - Valtchev, Stan
AU - Melício, Rui
N1 - UID/EEA/00066/2019
UID/GEO/04683/2019
UID/EMS/50022/2019
PY - 2019/10
Y1 - 2019/10
N2 - The magnetic resonance coupling method is recognized as the most suitable to achieve highly efficient wireless energy transfer for battery charging. However, the performance of this method is highly sensitive to the magnetic coupling and the load parameters, whose variations cause the system to change its resonant frequency. In order to resolve the sensitivity problems of the magnetic resonant coupling in Wireless Energy Transfer (WET) systems, an effective method of frequency tuning is proposed. In this paper, the modelling, design, and implementation in a prototype of a two-coil WET system is presented. The system is keeping simultaneously the necessary data transfer between the receiver and transmitter of energy. The operation frequency of the prototype is kept below 100 kHz, while the data channel operates at 2.4 GHz. The application software which allows the tuning of the operating frequency of the prototype is specifically developed. The experimental results show that the WET system prototype together with the data transmission have the capability of tuning to the resonant frequency, or to another calculated one, allowing to achieve the best possible efficiency of the system at the energy transfer.
AB - The magnetic resonance coupling method is recognized as the most suitable to achieve highly efficient wireless energy transfer for battery charging. However, the performance of this method is highly sensitive to the magnetic coupling and the load parameters, whose variations cause the system to change its resonant frequency. In order to resolve the sensitivity problems of the magnetic resonant coupling in Wireless Energy Transfer (WET) systems, an effective method of frequency tuning is proposed. In this paper, the modelling, design, and implementation in a prototype of a two-coil WET system is presented. The system is keeping simultaneously the necessary data transfer between the receiver and transmitter of energy. The operation frequency of the prototype is kept below 100 kHz, while the data channel operates at 2.4 GHz. The application software which allows the tuning of the operating frequency of the prototype is specifically developed. The experimental results show that the WET system prototype together with the data transmission have the capability of tuning to the resonant frequency, or to another calculated one, allowing to achieve the best possible efficiency of the system at the energy transfer.
KW - prototype
KW - wireless energy transfer
KW - data transmission
KW - frequency tuning
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85082719813&origin=resultslist&sort=plf-f&src=s&st1
U2 - 10.1109/IECON.2019.8926809
DO - 10.1109/IECON.2019.8926809
M3 - Conference contribution
SN - 978-1-7281-4878-6
T3 - IEEE Industrial Electronics Society
SP - 6615
EP - 6620
BT - 45TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2019)
PB - Institute of Electrical and Electronics Engineers (IEEE)
T2 - 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
Y2 - 14 October 2019 through 17 October 2019
ER -