An Efficient Topology for Wireless Power Transfer over a Wide Range of Loading Conditions

被引：7
|
作者：
Li, Tianqing [1 ]
Wang, Xiangzhou [1 ]
Zheng, Shuhua [1 ]
Liu, Chunhua [2 ]
机构：
[1] Beijing Inst Technol, Sch Automat, Beijing 100081, Peoples R China
[2] City Univ Hong Kong, Sch Energy & Environm, Hong Kong, Hong Kong, Peoples R China
来源：
ENERGIES | 2018年 / 11卷 / 01期
关键词：
wireless power transfer; inductive power transfer (IPT); single-ended primary-inductor converter; high efficiency; wide-load conditions; TRANSFER SYSTEMS; TRACKING; CONVERTER;
D O I：
10.3390/en11010141
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Although an inductive power transfer (IPT) system can transfer power efficiently in full-load conditions, its efficiency obviously decreases in light-load conditions. To solve this problem, based on a two-coil IPT system with a series-series compensation topology, a single-ended primary-inductor converter is introduced at the secondary side. By adjusting the set effective value of the current in the primary coil, the converter input voltage changes to maintain the equivalent input resistance of the converter in an optimal condition. The system can then transfer the power efficiently with the wide load conditions. Moreover, the system operates at a constant resonance frequency with a high power factor. Both the simulation and experimentation of a prototype with a 10 W IPT system demonstrate the effectiveness of the proposed topology for wireless power transfer.
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收藏
页数：16
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