摘要
叙述了无线电能传输的概念和发展历程,着重对电磁感应式、电磁共振式和电磁辐射式三种无线电能传输进行了详细分析;电磁感应式传输距离近、效率低且需要补偿;电磁共振式是对感应式的突破,可以在几米的范围内传输中等,其研究前景较好;电磁辐射式传输距离远,功率较大,但传输较远距离时需要高效整流天线和高方向性天线,其研制难度较大。
This paper reviews the concept and development of the wireless power transmission （WPT） and analyzes the three types of WPT, i. e. , electromagnetic induction, electromagnetic resonance and electromagnetic radiation with details. The electromagnetic induction WPT has a short transmission distance and low efficiency which needs to be compensated. The electromagnetic resonance WPT is an update of the electromagnetic induction WPT. It can transmit medium power in several meters area and has a rather good development potential. The electromagnetic radiation WPT can transmit power to a long distance with high power. But it needs high-efficient rectification antenna and high-directional antenna, which are difficult to be made.
出处
《重庆工商大学学报（自然科学版）》
2009年第5期485-488,共4页
Journal of Chongqing Technology and Business University:Natural Science Edition
基金
西南大学博士基金(104180-20710912)
关键词
无线电能传输
电磁感应
磁谐振
微波
wireless power transmission
electromagnetic induction
magnetic resonances
microwave
