TY - GEN
T1 - A Novel Efficiency-oriented Frequency Tracking Method for WPT Systems
AU - Lu, Kaixing
AU - Wang, Yijie
AU - Wang, Lei
AU - Zhang, Longlong
AU - Yao, Yousu
AU - Cheng, Haisong
AU - Mai, Jianwei
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - The deviation from resonant conditions in wireless power transfer (WPT) systems caused by variations of compensation parameters will result in reduced power transfer efficiency and deteriorated output characteristics. To handle with these problems, the time difference between the rising edge of the driving signal and the zero-crossing point of the primary current is detected. The phase angle of the input impedance is obtained, which works as the feedback parameter to control the switching frequency of the inverter. The proposed WPT systems always operate under resonant conditions. Hence, the output power and efficiency are improved, and zero-voltage switching is achieved under all load conditions.
AB - The deviation from resonant conditions in wireless power transfer (WPT) systems caused by variations of compensation parameters will result in reduced power transfer efficiency and deteriorated output characteristics. To handle with these problems, the time difference between the rising edge of the driving signal and the zero-crossing point of the primary current is detected. The phase angle of the input impedance is obtained, which works as the feedback parameter to control the switching frequency of the inverter. The proposed WPT systems always operate under resonant conditions. Hence, the output power and efficiency are improved, and zero-voltage switching is achieved under all load conditions.
KW - dynamic tuning
KW - frequency tracking
KW - input impedance angle
KW - wireless power transfer
UR - https://www.scopus.com/pages/publications/85077131689
U2 - 10.1109/ICEMS.2019.8921703
DO - 10.1109/ICEMS.2019.8921703
M3 - 会议稿件
AN - SCOPUS:85077131689
T3 - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
BT - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Y2 - 11 August 2019 through 14 August 2019
ER -