TY - GEN
T1 - Secondary-side power control method for double-side LCC compensation topology in wireless EV charger application
AU - Pang, Bo
AU - Deng, Junjun
AU - Liu, Peng
AU - Wang, Zhenpo
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/15
Y1 - 2017/12/15
N2 - Wireless electric vehicle (EV) charger has become increasingly popular because of its improved convenience and safety and its advantage of smaller green-house gas (GHG) emissions. The power control method of the wireless power transfer (WPT) system has great impact on the performance of the charger. In order to simplify the power electronics converters and improve the reliability of the system closed-loop control, a novel secondary-side power control method by adding a pair of bidirectional switches is presented for the wireless EV charger. The proposed control method, which is applied on a double-side LCC compensated wireless power transfer system, is analyzed based on the fundamental harmonic approximation (FHA) approach. The relationship between the controlled duty cycle of the secondary switches and the output power is derived and discussed. The total harmonic distortion (THD) of the input current is also calculated to estimate the influence of the duty cycle on the primary side. A prototype of the WPT system with the proposed control method has been built and tested, and the confirmatory experiment is also presented to validate the theoretical analysis.
AB - Wireless electric vehicle (EV) charger has become increasingly popular because of its improved convenience and safety and its advantage of smaller green-house gas (GHG) emissions. The power control method of the wireless power transfer (WPT) system has great impact on the performance of the charger. In order to simplify the power electronics converters and improve the reliability of the system closed-loop control, a novel secondary-side power control method by adding a pair of bidirectional switches is presented for the wireless EV charger. The proposed control method, which is applied on a double-side LCC compensated wireless power transfer system, is analyzed based on the fundamental harmonic approximation (FHA) approach. The relationship between the controlled duty cycle of the secondary switches and the output power is derived and discussed. The total harmonic distortion (THD) of the input current is also calculated to estimate the influence of the duty cycle on the primary side. A prototype of the WPT system with the proposed control method has been built and tested, and the confirmatory experiment is also presented to validate the theoretical analysis.
KW - double-side LCC compensation
KW - electric vehicle (EV)
KW - inductive power transfer (IPT)
KW - power control method
KW - wireless power transfer (WPT)
UR - http://www.scopus.com/inward/record.url?scp=85046641449&partnerID=8YFLogxK
U2 - 10.1109/IECON.2017.8217377
DO - 10.1109/IECON.2017.8217377
M3 - Conference contribution
AN - SCOPUS:85046641449
T3 - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
SP - 7860
EP - 7865
BT - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Y2 - 29 October 2017 through 1 November 2017
ER -