Global Optimization of Transmission Efficiency in multi-relay MC-WPT System Based on Switching Topology for Enhanced Tracing

This paper addresses the issues of low transmission efficiency and instability in the magnetic coupled wireless power transfer (MC-WPT) system when subjected to load changes. The study analyzes the transmission characteristics of a four-relay MC-WPT system in series-series (s-s) and series-parallel...

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Bibliographic Details
Published in2024 IEEE 2nd International Conference on Power Science and Technology (ICPST) pp. 763 - 768
Main Authors Yu, Zhongming, Shan, Menghao, Du, Hongze, Lei, Yuan
Format Conference Proceeding
LanguageEnglish
Published IEEE 09.05.2024
Subjects
Electron tubes
global tracking
Impedance
Magnetic switching
Multi-relay wireless power transfer
Switches
switching topology
Topology
transmission efficiency
Wireless communication
Wireless power transfer
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Summary:This paper addresses the issues of low transmission efficiency and instability in the magnetic coupled wireless power transfer (MC-WPT) system when subjected to load changes. The study analyzes the transmission characteristics of a four-relay MC-WPT system in series-series (s-s) and series-parallel (s-p) topology, and proposes a global tracking method to achieve optimal transmission efficiency under variable load conditions by switching between s-s and s-p topology. Simultaneously, the method for selecting the optimal load switching point is presented. Furthermore, through continuous changes in load impedance, the simulation analysis more clearly validates the rationality and effectiveness of the designed switching topology method. The findings indicate that transitioning the system from s-s topology to s-p topology at the optimal load impedance switching point not only maintains optimal transmission efficiency but also significantly reduces MOS tube switching times in s-s topology and prolongs system service life.
DOI:10.1109/ICPST61417.2024.10602044