Cao, Yuan;
Liao, Yinqin;
Chen, Long;
Wang, Chunsheng;
Hu, Yukun;
(2025)
A Wireless Power Feedback-Based Battery Equalizer with Multiple-Receiver.
IEEE Transactions on Transportation Electrification
10.1109/TTE.2025.3545826.
(In press).
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Abstract
Active balancing methods for battery systems in electric vehicles (EVs), utilizing wireless power transfer (WPT), have attracted considerable attention due to their non-contact operation, compactness, and safety. However, conventional WPT-based balancing methods primarily function during the charging process while neglecting the discharging operation. To address this issue, a wireless power feedback multiple-receiver (WPF-MRx) topology with a corresponding battery balancing method based on a buck converter is presented in this paper. In this topology, power is discharged from a series-connected battery pack to the load via the buck converter, wherein the inductor of the buck converter serves as the transmitting coil. In addition, each battery cell is equipped with a corresponding receiving coil, capturing the feedback energy from the transmitting coil. To achieve active balancing, an auto-dormant wireless balancing algorithm is presented in this paper by adjusting the shunt current of each battery cell, thereby minimizing power losses, and accelerating the balancing process. Comprehensive evaluation and validation of the presented system are derived from a proof-of-concept experimental prototype.
| Type: | Article |
|---|---|
| Title: | A Wireless Power Feedback-Based Battery Equalizer with Multiple-Receiver |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TTE.2025.3545826 |
| Publisher version: | https://doi.org/10.1109/tte.2025.3545826 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Battery equalization, battery management system, current ripple, state of charge, wireless power transfer |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10206664 |
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