- Title
- High-efficiency WPT system for CC/CV charging based on double-half-bridge inverter topology with variable inductors
- Creator
- Zhu, Xiao; Zhao, Xing; Li, Yong; Liu, Shunpan; Yang, Huanyu; Tian, Jihao; Hu, Jiefeng; Mai, Ruikun; He, Zhengyou
- Date
- 2022
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/184720
- Identifier
- vital:16586
- Identifier
-
https://doi.org/10.1109/TPEL.2021.3107461
- Identifier
- ISBN:0885-8993 (ISSN)
- Abstract
- Efficiency remains a key challenge in wireless charging in academia and industry. In this article, a new wireless power transfer (WPT) system based on a double-half-bridge (DHB) inverter with two variable inductors (VIs) is proposed. Compared with conventional full-bridge (FB) inverters, the DHB inverter can reduce the current through the mosfets under the same output power and thus, reduce the conduction loss. Next, by adjusting the inductances of the VIs instead of using phase shift (PS) method, the output voltage or current can be controlled, while the circulating current can be eliminated and wide-range zero voltage switching operation can be achieved. Consequently, the power loss can be further reduced. Circuit analysis, VI design, as well as hardware implementation, are provided in detail. A laboratory prototype is built to verify the feasibility of the proposed method. Close agreement is obtained between simulation and experimental results. The maximum efficiency can reach 92.4%, which is 3.65% higher than traditional PS control. © 1986-2012 IEEE.
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Relation
- IEEE Transactions on Power Electronics Vol. 37, no. 2 (2022), p. 2437-2448
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright © 2021 IEEE.
- Subject
- 4008 Electrical engineering; 4009 Electronics, sensors and digital hardware; Double-half-bridge (DHB) inverter; Output voltage or current; Variable inductor (VI); Wireless power transfer (WPT); Zero voltage switching (ZVS)
- Reviewed
- Funder
- This work was supported in part by the National Natural Science Foundation of China under Grant 51907169, in part by the Sichuan Science and Technology Program under Grant 2020YFH0031, in part by the Fundamental Research Funds for the Central Universities under Grant 2682020CX16, and in part by the Star of Science and Technology in Southwest Jiaotong University underGrant 2682021CG018.
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