TY - JOUR
T1 - Analysis of Factors Effecting on Optimal Configuration of Two Receivers for a Three-Coil Wireless Power Transfer System
AU - Lee, Kisong
AU - Jeong, Cheol
AU - Chae, Sung Ho
N1 - Publisher Copyright:
© 2007-2012 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - In this paper, we investigate the optimal configuration of receivers for a three-coil wireless power transfer system in which a transmitter is located between receivers. Based on an equivalent circuit model, we first find the compensatory reactance terms to eliminate cross coupling between receivers. Neglecting cross coupling, we derive an optimal coupling coefficient between a receiver and transmitter for a given arrangement of a second receiver, as a means of maximizing the transmission efficiency (TE). Using this theoretical analysis, it is revealed that the TE can be improved by locating the first receiver far from the transmitter when the first receiver has higher quality factor or the distance between the transmitter and the second receiver is lower. Results for various cases show that our analytical results are in a good agreement with experimental ones.
AB - In this paper, we investigate the optimal configuration of receivers for a three-coil wireless power transfer system in which a transmitter is located between receivers. Based on an equivalent circuit model, we first find the compensatory reactance terms to eliminate cross coupling between receivers. Neglecting cross coupling, we derive an optimal coupling coefficient between a receiver and transmitter for a given arrangement of a second receiver, as a means of maximizing the transmission efficiency (TE). Using this theoretical analysis, it is revealed that the TE can be improved by locating the first receiver far from the transmitter when the first receiver has higher quality factor or the distance between the transmitter and the second receiver is lower. Results for various cases show that our analytical results are in a good agreement with experimental ones.
KW - Equivalent circuit model (ECM)
KW - optimal configuration
KW - transmission efficiency (TE)
KW - wireless power transfer (WPT)
UR - http://www.scopus.com/inward/record.url?scp=85052676943&partnerID=8YFLogxK
U2 - 10.1109/JSYST.2018.2865110
DO - 10.1109/JSYST.2018.2865110
M3 - Article
AN - SCOPUS:85052676943
SN - 1932-8184
VL - 13
SP - 1328
EP - 1331
JO - IEEE Systems Journal
JF - IEEE Systems Journal
IS - 2
M1 - 8447256
ER -