Boundary of Soft-switching for Efficient Operation of Bi-directional IPT Systems

被引：0

作者：

Ota, Ryosuke ^{[1
]}

Thrimawithana, Duleepa J. ^{[2
]}

Madawala, Udaya K. ^{[2
]}

Covic, Grant A. ^{[2
]}

机构：

[1] Tokyo Univ Sci, Dept Elect Engn, Chiba, Japan

[2] Univ Auckland, Dept Elect Comp & Software Engn, Auckland, New Zealand

来源：

2020 IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER TRANSFER (WOW) | 2020年

关键词：

WPT; IPT; soft switching;

D O I：

10.1109/wow47795.2020.9291279

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：

In inductive power transfer (IPT) systems, highspeed switching devices such as SiC MOSFETs are used, though, these devices generate electromagnetic noise at switching. Therefore, it is desirable to apply soft-switching technique to the converters in IPT systems to reduce the noise. However, in order to achieve soft-switching operation, it is necessary to utilize the reactive current from the resonant network, however this causes additional conduction loss. Therefore, in order to minimize conduction loss, this paper reconsiders the efficiency characteristics under soft-switching IPT systems. In addition, a guideline for improving system efficiency is shown, and its effectiveness is confirmed by experiment. In this experiment, the efficiency of the overall system is improved by 0.8 % at the maximum transmission power in comparison with conventional methods.

引用

页码：164 / 169

页数：6

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