Three-phase wireless power supply system using a matrix converter

IF 0.5 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Koki Yamanokuchi, Keisuke Kusaka, Jun-Ichi Itoh
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引用次数: 0

Abstract

This paper proposes a three-phase wireless power transfer (WPT) system with a three-phase-to-three-phase matrix converter. The proposed system directly converts power from an AC grid to high-frequency AC for WPT. The three-phase WPT system with the matrix converter is effectively expands the lifetime of the WPT system. A novel hybrid commutation method, which is suitable for the WPT system with a resonant characteristic, is proposed to avoid the commutation failure of the matrix converter. The strategy of the proposed hybrid commutation is based on an estimation of the current direction considering the resonant characteristics and elimination of commutation in the critical area. The proposed commutation method achieves an AC input-current total harmonic distortion (THD) of 4.7% with the resonant three-phase load without a current sensor on the high-frequency side. Furthermore, the proposed WPT system achieves a system efficiency of 88.2% at a load of 4 kW.

采用矩阵变换器的三相无线供电系统
本文提出了一种具有三相到三相矩阵变换器的三相无线电力传输(WPT)系统。所提出的系统直接将来自交流电网的电力转换为用于WPT的高频交流电。采用矩阵变换器的三相WPT系统有效地延长了WPT系统的使用寿命。为了避免矩阵变换器的换相故障,提出了一种适用于具有谐振特性的WPT系统的新型混合换相方法。所提出的混合换向策略是基于对电流方向的估计,考虑到谐振特性和临界区域换向的消除。所提出的整流方法在高频侧没有电流传感器的谐振三相负载下实现了4.7%的交流输入电流总谐波失真(THD)。此外,所提出的WPT系统在4kW的负载下实现了88.2%的系统效率。
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来源期刊
Electronics and Communications in Japan
Electronics and Communications in Japan 工程技术-工程:电子与电气
CiteScore
0.60
自引率
0.00%
发文量
45
审稿时长
6-12 weeks
期刊介绍: Electronics and Communications in Japan (ECJ) publishes papers translated from the Transactions of the Institute of Electrical Engineers of Japan 12 times per year as an official journal of the Institute of Electrical Engineers of Japan (IEEJ). ECJ aims to provide world-class researches in highly diverse and sophisticated areas of Electrical and Electronic Engineering as well as in related disciplines with emphasis on electronic circuits, controls and communications. ECJ focuses on the following fields: - Electronic theory and circuits, - Control theory, - Communications, - Cryptography, - Biomedical fields, - Surveillance, - Robotics, - Sensors and actuators, - Micromachines, - Image analysis and signal analysis, - New materials. For works related to the science, technology, and applications of electric power, please refer to the sister journal Electrical Engineering in Japan (EEJ).
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