Modeling of coupling mechanism of wireless power transfer system and vibration phenomenon of receiver-coil in three-coil system

• DOI: 10.1063/1.4999615
• Publication Date: 2017-11-09T15:09:25Z
• Authors: Suqi Liu; Jianping Tan; Xue Wen
• Keywords: Physics; QC1-999; 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Wireless power transfer (WPT) via coupled magnetic resonances has become a focus recently, but the mechanisms responsible for such work are uncertain. We found that WPT system is a self-organization system by utilizing self-organization theory to judge. Firstly, the circuit model was established and transfer characteristic of a system was researched by utilizing circuit theories. Thus, with the introduction of entropy variable S, the energy equation of state can be established from the energy of the transmitter side and the energy of the receiver side. According to the energy equation of state, this paper obtains two equations when the reactance of the transmitter side and the receiver side equate to zero respectively. The vibration phenomenon of the receiver-coil in a three-coil WPT system was predicted and explained. Our findings illuminate the unusual self-organization in the WPT system and explain the vibration phenomenon of the receiver-coil in a three-coil WPT system.