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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhang, Jin Cheng, Chonghu Chen, Kai Wang, Fangfang Gao, Yingjie |
| Abstract | Wireless power transfer (WPT) system with multiple transmitters (TXs) and one receiver (RX) can effectively enlarge the range of power transmission region. The power delivered to load (PDL) and power transfer efficiency (PTE) of two-TX WPT system has been intensively studied in the past few years. To achieve a wider range of power transmission, the multiple-TX system should be investigated urgently. Using Kirchhoff's voltage law (KVL) and RX-side reflected load theory (RLT), this study analyses a general multiple-TX and single-RX systems in detail. The explicit closed-form equations for the highest PDL, PTE and corresponding optimal loads are derived from the two methods. The constraint of feeding amplitude ratios need be equal to the mutual inductance ratios for the highest PTE deduced from KVL; on the other hand, inspired by TX-side RLT using in the multiple-RXs system, RX-side RLT is first proposed and can readily derive the highest PDL, PTE and optimal loads compared with KVL. Numerical simulations for three- and four-TX systems are implemented to intuitively illuminate the theoretical analysis. Experiments for two-, three- and four-TX systems have verified the accuracy of the proposed analysis. |
| Starting Page | 1997 |
| Ending Page | 2004 |
| Page Count | 8 |
| ISSN | 17518725 |
| Volume Number | 13 |
| e-ISSN | 17518733 |
| Issue Number | Issue 12, Oct (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/13/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5698 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2019-05-29 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Four-TX System General Multiple-TX Highest PTE Inductive Power Transmission Kirchhoff's Voltage Law KVL Multiple Transmitters Multiple-RXs System Multiple-TX WPT System Optimal Load PDL Power Delivered to Load Power Transfer Efficiency Power Transmission Region Radio Link And Equipment Receiver RX-side RLT Single-RX System Transmitter Two-TX WPT System Wireless Power Transfer System |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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