wireless power transmission from ac to dc at 1 m distance

1 m 距离内从交流到直流的无线电力传输

• 批准号: 24656182
• 负责人: KAWAMURA Atsuo
• 金额: $ 2.58万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24656182/
• 关键词: パワーエレクトロニクス; ワイヤレス電力伝送; 共振型整流回路; インバータ; スイッチングデバイス; ワイヤレス; 直流変換

1. To improve the efficiency of the rectifier at 13.56MHz, a capacitor was inserted in the ac side, and also an impedance matcher was inserted in front of the rectifier. As a result the efficiency 94% was experimentally observed at 1 kW output power. To improve the efficiency of the antenna, the wire resistance was reduced by changing the wire material and the magnetizing inductance was optimized by using the proposed equivalent circuit. As a result the 96% efficiency of the antenna was observed.2. By implementation of the above two improvement, the total efficiency from 13.56MHz ac input to the dc output is expected to be 094x0.96=0.90, however the experiments at 1.5 kW output power of 12 cm distance showed the 89.1% efficiency.. The detail was presented at IPEC-Hiroshima held in May, 2014.

1.为了提高整流器在13.56MHz的效率，在交流侧插入电容器，并且在整流器的前面插入阻抗匹配器。 结果，在1 kW输出功率下实验观察到效率94%。为了提高天线的效率，通过改变导线材料来减小导线电阻，并利用所提出的等效电路来优化磁化电感。 结果天线的效率达到了96%.通过实施上述两项改进，从13.56MHz交流输入到直流输出的总效率预计为094 × 0.96 =0.90，然而，在1.5kW输出功率下12 cm距离的实验显示效率为89.1%。 2014年5月在广岛举行的IPEC上介绍了详细情况。

项目成果

磁気共鳴型非接触給電の高周波電力整流回路における高効率化に関する一考察

提高磁共振式非接触电力传输高频功率整流电路效率的研究

• 发表时间: 2013
• 作者: Mohammad Bani Shamseh;Atsuo Kawamura;穴澤 達，河村 篤男，Bani Shamseh Mohammad Husam Abdallah
• 通讯作者: 穴澤 達，河村 篤男，Bani Shamseh Mohammad Husam Abdallah

Distortion reduction in current and voltage waves for a high efficiency and high frequency rectifier for WPT applications

减少电流和电压波的失真，实现 WPT 应用的高效高频整流器

• 发表时间: 2013
• 作者: Mohammad Bani Shamseh;Atsuo Kawamura;and Itsuo Yuzurihara
• 通讯作者: and Itsuo Yuzurihara

Disｔortion Reduction in Current and Voltage Waves for a High Efficiency and High Frequency Rectifier for WPT Applications

用于 WPT 应用的高效高频整流器的电流和电压波失真减少

• 发表时间: 2013
• 作者: Mohammad Bani Shamseh;Atsuo Kawamura
• 通讯作者: Atsuo Kawamura