基于电场感应的无线电能传输系统的研究

摘要

无线电能传输主要是利用电磁耦合、电场耦合、微波、电磁共振等形式来传输电能。其中，通过电场耦合，也被称为电容耦合的无线电能传输方式，作为一个新的非接触电力传输技术被提出。相比于现有的电感感应式无线电能传输，电容耦合非接触电能传输方式具有许多优点，如金属渗透能力、低功率损耗，并且能够降低电磁干扰。文章主要是分析了典型的电场感应无线电能传输系统耦合电容的结构，并进行了仿真分析以及实物的验证。%Electrical energy is mainly transmitted by electromagnetic coupling, electric-field coupling, microwave and electromagnetic resonance in wireless power transmission system. Recently, electric-field coupling, which is also known as capacitive coupling, is proposed as a novel non-contact power transmission technology. Compared with the widely used electromagnetic inductive wireless power transmission system, capacitive coupling non-contact transmission system has many advantages such as metal penetration capability, low power loss and low electromagnetic interference. In this paper, the typical structures of the coupling capacitor utilized in electric-field inductive wireless power transmission system are detailedly analyzed and verified by both simulation and experiments.