Optimal Design of Electromagnetic Induction High-efficiency Wireless Power Transmission System

Electromagnetic induction wireless power transmission technology has become a research hotspot in the field of wireless charging. This paper introduces the basic structure of electromagnetic induction wireless power transmission technology, analyzes the series compensation resonance system, derives the influence of mutual inductance and coupling coefficient on output power and efficiency, gives the design scheme of mutual inductance and coupling coefficient, and completes the loose Design of coupling transformer. Then set up an experimental platform, and use open-loop phase-shift control for experimental verification. Experimental results show that the wireless charging system designed in this paper can achieve a maximum efficiency of 90.8% at a distance of 200mm, and has a high energy transmission efficiency.