TY - GEN
T1 - An accurate phase detection method for realizing ZVS of high frequency inverter in wireless power transmission
AU - Jiang, Yongbin
AU - Wang, Yue
AU - Liu, Junwen
AU - Li, Xiang
AU - Wang, Laili
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/25
Y1 - 2017/7/25
N2 - Compared with traditional plug-in charging method, wireless power transmission (WPT) is recognized as a more convenient and safer means for electric power transfer. To enhance efficiency of the whole system and reduce EMI, zero-voltage switching (ZVS) of primary inverter should be achieved, while maintaining constant current charging for battery. Consequently, the phase of primary resonant current must be detected precisely, while using frequency modulation and phase shift control (FM-PSC) simultaneously. In this paper, an enhanced phase detection methodology (EPDM) is proposed by using double D flip-flops and a reference signal. A second-order chebyshev low-pass filter is adopted to obtain high dynamic response and steady-state accuracy for resonant current phase detecting. A prototype phase detection board is built up and experimental results convincingly demonstrate the phase angle can be detected accurately. Meanwhile, a 300W WPT prototype is fabricated to verify the validity of the phase angle detection method.
AB - Compared with traditional plug-in charging method, wireless power transmission (WPT) is recognized as a more convenient and safer means for electric power transfer. To enhance efficiency of the whole system and reduce EMI, zero-voltage switching (ZVS) of primary inverter should be achieved, while maintaining constant current charging for battery. Consequently, the phase of primary resonant current must be detected precisely, while using frequency modulation and phase shift control (FM-PSC) simultaneously. In this paper, an enhanced phase detection methodology (EPDM) is proposed by using double D flip-flops and a reference signal. A second-order chebyshev low-pass filter is adopted to obtain high dynamic response and steady-state accuracy for resonant current phase detecting. A prototype phase detection board is built up and experimental results convincingly demonstrate the phase angle can be detected accurately. Meanwhile, a 300W WPT prototype is fabricated to verify the validity of the phase angle detection method.
KW - Wireless power transmission
KW - enhanced phase detection methodology
KW - frequency modulation and phase shift control
KW - zero-voltage switching
UR - https://www.scopus.com/pages/publications/85034112451
U2 - 10.1109/IFEEC.2017.7992245
DO - 10.1109/IFEEC.2017.7992245
M3 - 会议稿件
AN - SCOPUS:85034112451
T3 - 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
SP - 1380
EP - 1384
BT - 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
Y2 - 3 June 2017 through 7 June 2017
ER -