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Open AccessArticle

A Hybrid Compensation Topology for Battery Charging System Based on IPT Technology

1
School of Electrical Engineering, Beiijing Jiaotong University, Beijing 100044, China
2
China Electrotechnical Society, Beijing 100055, China
*
Author to whom correspondence should be addressed.
Energies 2019, 12(20), 3818; https://doi.org/10.3390/en12203818
Received: 7 September 2019 / Revised: 28 September 2019 / Accepted: 2 October 2019 / Published: 9 October 2019
Based on the double-sided LCC (DLCC) compensation topology circuit, a battery charging method is proposed to meet various charging requirements. Firstly, mathematical model was obtained by modeling primary and secondary sides of DLCC. The current gain and voltage gain of the inductive power transfer (IPT) system are derived. Then, taking into account the smooth conversion of charging mode, the parameter configuration conditions for constant current (CC) output and constant voltage (CV) output are designed systematically. Finally, after choosing parameters, the CC and CV modes can be achieved by adding one switch and an auxiliary capacitor. With few additional components and non-sophisticated control, both cost and complexity can be significantly reduced. An experimental prototype with 64 V charging voltage and 1A charging current is built. The experimental results show that the charging voltage and current fluctuation of the system are small and the method can meet the above requirements. View Full-Text
Keywords: inductive power transfer (IPT); LCC compensation network; constant current (CC); constant voltage (CV) inductive power transfer (IPT); LCC compensation network; constant current (CC); constant voltage (CV)
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Yang, J.; Zhang, X.; Yang, X.; Liu, Q.; Sun, Y. A Hybrid Compensation Topology for Battery Charging System Based on IPT Technology. Energies 2019, 12, 3818.

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