电磁感应式非接触电能传输技术研究综述

非接触电能传输(CPT)技术可以使电气设备摆脱导线的束缚,极大地扩展电气设备的活动范围,提升特殊环境下供电的安全性能。针对目前CPT技术中应用较为广泛的电磁感应式非接触电能传输(ICPT)技术,首先论述了该技术的发展历程;然后以坡印廷矢量为理论基础,探讨了非接触供电技术的实现原理。将现有的CPT技术按实现原理进行了分类,将磁共振式非接触电能传输技术归入ICPT技术分类;系统性地分析了ICPT技术的主要技术难点,指出耦合器耦合系数低是ICPT技术的主要技术问题,其他问题是在该问题无法解决时采用其他技术弥补而产生的。最后,论述了ICPT系统的主要关键技术及现有解决方案。

Review on Inductive Contactless Power Transfer Technology

Contactless Power Transfer (CPT) technology can make electrical equipment get rid of the shackles of wires, can greatly expand the scope of the electrical equipment, and enhance the safety performance of power supply in special environment. Aiming at the Inductive Contactless Power Transfer (ICPT) technology which is one of CPT technology widely used, firstly, the development of the ICPT technology is discussed. And then, using the Poynting vector theory, the principle of CPT technology is discussed. The existing CPT technology is classified according to the difference of the realization principle. The Magnetic Resonance Contactless Power Transfer (MRCPT) technology is classified into ICPT technology. The main technical difficulties of ICPT technology are analyzed systematically. It is pointed out that the low coupling coefficient of coupler is the key technical problem of ICPT technology, and the other problems are caused by this problem. Finally, the key technologies of ICPT system and the existing solutions are discussed.