TY - GEN
T1 - Sensitivity Analysis of an LCC-LCC Compensated 20-kW Bidirectional Wireless Charging System for Medium-Duty Vehicles
AU - Mohammad, Mostak
AU - Anwar, Saeed
AU - Onar, Omer
AU - Pries, Jason
AU - Galigekere, Veda P.
AU - Asa, Erdem
AU - Su, Gui Jia
AU - Wilkins, Jonathan
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - In this paper, sensitivity analysis of an LCC-LCC compensated bidirectional wireless charging system is presented. In a wireless charging system for electric vehicle applications, the effective load impedance varies significantly with the state-of-charge (SOC)of the battery. Due to the change in system parameters, resonant frequency, and transferred power, the efficiency of the system varies significantly. Sensitivity analysis of the system characteristics reveals the optimal operating region and required control strategy to operate within that region. Sensitivity analysis is even more important for a bidirectional system with mismatched input and output voltage levels. In this paper, the sensitivity of a bidirectional 20 kW wireless charging system is investigated analytically and the results are validated experimentally. The experimental results for a geometrically matched Double-D (DD) coil-based LCC-LCC tuned bidirectional WCS with asymmetric voltage levels show that the voltage gains and input impedance of the system are highly sensitive near the resonant frequency.
AB - In this paper, sensitivity analysis of an LCC-LCC compensated bidirectional wireless charging system is presented. In a wireless charging system for electric vehicle applications, the effective load impedance varies significantly with the state-of-charge (SOC)of the battery. Due to the change in system parameters, resonant frequency, and transferred power, the efficiency of the system varies significantly. Sensitivity analysis of the system characteristics reveals the optimal operating region and required control strategy to operate within that region. Sensitivity analysis is even more important for a bidirectional system with mismatched input and output voltage levels. In this paper, the sensitivity of a bidirectional 20 kW wireless charging system is investigated analytically and the results are validated experimentally. The experimental results for a geometrically matched Double-D (DD) coil-based LCC-LCC tuned bidirectional WCS with asymmetric voltage levels show that the voltage gains and input impedance of the system are highly sensitive near the resonant frequency.
KW - Inductive charging
KW - electric vehicle
KW - sensitivity analysis
KW - wireless power transfer (WPT)
UR - http://www.scopus.com/inward/record.url?scp=85071306095&partnerID=8YFLogxK
U2 - 10.1109/ITEC.2019.8790620
DO - 10.1109/ITEC.2019.8790620
M3 - Conference contribution
AN - SCOPUS:85071306095
T3 - ITEC 2019 - 2019 IEEE Transportation Electrification Conference and Expo
BT - ITEC 2019 - 2019 IEEE Transportation Electrification Conference and Expo
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Transportation Electrification Conference and Expo, ITEC 2019
Y2 - 19 June 2019 through 21 June 2019
ER -