Unified Coil and Compensation Network Design for Improving Wireless Power Transfer Efficiency Over Wide Output Load Variation Ranges

被引：4

作者：

Bozorgi, Amir Masoud ^{[1
]}

Tavakoli, Reza ^{[2
]}

Farasat, Mehdi ^{[3
]}

机构：

[1] Danfoss Turbocor, Tallahassee, FL 32310 USA

[2] Duke Univ, Dept Psychiat & Behav Sci, Durham, NC 27708 USA

[3] Louisiana State Univ, Sch Elect Engn & Comp Sci, Baton Rouge, LA 70803 USA

来源：

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2022年 / 10卷 / 02期

关键词：

Couplings; Ferrites; Wires; Batteries; Inductance; Wireless power transfer; Voltage control; Coil and compensation network design; time-weighted average efficiency; wireless power transmission; TRACKING; OPTIMIZATION;

D O I：

10.1109/JESTPE.2021.3116483

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

It is shown that the compensation network and coil design collectively affect wireless power transfer (WPT) efficiency. Based on this fact, a novel design approach of WPT systems is proposed. Unlike the majority of existing designs that aim at enhancing power transfer efficiency (PTE) at one rated operating point, the proposed design enhances the overall system PTE. This feature is essential for variable output loads, such as batteries, where their internal impedance varies during the charging period. To achieve this goal, improving the time-weighted average efficiency of the WPT system is set as the design criterion. Experimental studies of a 1.2-kW WPT system supplying constant resistive loads and battery loads verify that the proposed design enhances PTE both at rated output load and under wide output load variations.

引用

页码：2190 / 2200

页数：11

共 29 条

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