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A Multi-Inverter High-Power Wireless Power Transfer System with Wide ZVS Operation Range
- Citation Author(s):
- Submitted by:
- Xin Liu
- Last updated:
- Tue, 04/26/2022 - 19:33
- DOI:
- 10.21227/6sjs-j407
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- License:
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- Keywords:
Abstract
Conventional high-power wireless power transfer (WPT) systems suffer from hard switching, current sharing, and crossing coupling issues when providing a wide-range power supply. To improve the power level and regulation performance, we propose a new resonant inductor integrated-transformer based multi-inverter (RIIT-MI) topology for the high-power WPT system. A flexible power capacity can be achieved by increasing the number of inverters. A wide power regulation range with soft switching can be achieved without adding additional components. Excellent current sharing can be realized despite a wide range of power variations. A 14-kW LCC-LCC WPT experimental system with three parallel inverters is built and the overall efficiency reaches 93.5%, demonstrating the high performance of the proposed system.
This video shows the experimental results of proposed the RIIT-MI high-power WPT system.
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