电容器
电容
无线电源传输
电压
补偿(心理学)
功率(物理)
整流器(神经网络)
电子工程
阻抗匹配
电阻抗
电气工程
计算机科学
控制理论(社会学)
工程类
物理
控制(管理)
电磁线圈
心理学
随机神经网络
电极
量子力学
机器学习
人工智能
循环神经网络
人工神经网络
精神分析
作者
Na Fu,Junjun Deng,Zhenpo Wang,Deliang Chen
出处
期刊:IEEE Transactions on Power Electronics
[Institute of Electrical and Electronics Engineers]
日期:2023-07-01
卷期号:38 (7): 9183-9194
被引量:9
标识
DOI:10.1109/tpel.2023.3260207
摘要
In this article, a triple-phase-shift (TPS) control strategy combining a switch-controlled capacitor (SCC) is proposed for LCC – LCC compensated wireless power transfer (WPT) system to improve the overall efficiency at wide output voltages. The basic mathematical model of the system is first established, and the conditions for zero-voltage switching (ZVS) and load matching are described under TPS. Then, the mechanism of TPS reducing system efficiency at wide output voltages is revealed based on the established model. An SCC is employed to adjust the compensation capacitance to achieve a minimum circulating reactive power on both sides and reduce the rectifier input current. Finally, the impact of the compensation capacitance variations on the current, output power, and impedance are analyzed, based on which the optimal value of adjustable capacitance for maximum efficiency is derived by further considering the established time domain model. A comparative experiment is performed with traditional TPS and the proposed control technique, which shows that the system with the proposed control technique achieves a higher efficiency over the TPS within the entire power range.
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