Analysis of Impedance Tuning Control and Synchronous Switching Technique for a Semibridgeless Active Rectifier in Inductive Power Transfer Systems for Electric Vehicles

被引：49

作者：

Ann, Sangjoon ^{[1
]}

Lee, Byoung Kuk ^{[2
]}

机构：

[1] Sungkyunkwan Univ, Dept Elect & Comp Engn, Suwon 16419, South Korea

[2] Sungkyunkwan Univ, Coll Informat & Commun Engn, Suwon 16419, South Korea

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2021年 / 36卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

Impedance; Tuning; Switches; Control systems; Capacitors; Voltage control; Inductance; Electric vehicle (EV); impedance mismatch; impedance tuning control; inductive power transfer (IPT); wireless power transfer (WPT);

D O I：

10.1109/TPEL.2021.3049546

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：

In inductive power transfer (IPT) systems, load, and magnetic coupling variations cause an impedance mismatch. Impedance mismatch is one of the most serious problems in IPT systems for electric vehicles (EVs) because an EV is not always parked in the same location. Therefore, an impedance tuning control for semibridgeless active rectifiers (SBARs) is proposed in this article to compensate for this mismatch. The proposed impedance tuning control is achieved by adjusting the turn-on point and duty of the SBAR without using any additional component. Moreover, a technique for detecting the voltage-rising edge of the SBAR switch is proposed to extract the switching frequency and to synchronize the SBAR with the primary system. A 3.3-kW prototype of the IPT system with the SBAR is manufactured, and the proposed impedance tuning control is verified through experimental results according to the coupling coefficient. The proposed control can achieve an efficiency improvement of 6.4% under the impedance mismatch.

引用

页码：8786 / 8798

页数：13

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