Wide load and high efficiency power inverter design applied to magnetically coupled resonant wireless transmission

Authors

Yixiang Fang, Electric Power Engeering of Shanghai University of Electric Power, Shanghai 200090 , China
Yuhua Zhang, Electric Power Engeering of Shanghai University of Electric Power, Shanghai 200090 , China
Xiaoke Zhao, Electric Power Engeering of Shanghai University of Electric Power, Shanghai 200090 , China
Yuwei Zhang, Henan Tongan Power Engineering Co., Ltd., Shangqiu 476000 , China

Keywords

magnetically-coupled resonance, E-type inverter, load adaptability

Abstract

Aiming at the problem that the efficiency of magnetic coupling resonance-wireless power transmission (MCR-WPT) is reduced due to load changes during the transmission process, an efficient inverter is designed.The improved structure can significantly widen the load adaptation range of MCR-WPT system under high efficiency power transmission. After analyzing the relationship between the load and input impedance of MCR-WTP system and using the E-type inverter as the power supply, the inverter of the MCR-WPT system is fully soft switched by changing the structure of inverter.The operation efficiency of MCR-WTP system keep on the high level. Simulation results verify the effectiveness of the proposed structure.

DOI

10.19781/j.issn.1673-9140.2021.02.025

First Page

209

Last Page

216

Recommended Citation

Fang, Yixiang; Zhang, Yuhua; Zhao, Xiaoke; and Zhang, Yuwei (2021) "Wide load and high efficiency power inverter design applied to magnetically coupled resonant wireless transmission," Journal of Electric Power Science and Technology: Vol. 36: Iss. 2, Article 25.
DOI: 10.19781/j.issn.1673-9140.2021.02.025
Available at: https://jepst.researchcommons.org/journal/vol36/iss2/25