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Article

Maintain Power Transmission and Efficiency Tracking Using Variable Capacitors for Dynamic WPT Systems

by
Junda Zhu
,
Sami Barmada
*,
Antonino Musolino
and
Luca Sani
Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, 56126 Pisa, Italy
*
Author to whom correspondence should be addressed.
Electronics 2024, 13(14), 2853; https://doi.org/10.3390/electronics13142853
Submission received: 16 June 2024 / Revised: 15 July 2024 / Accepted: 17 July 2024 / Published: 19 July 2024
(This article belongs to the Special Issue Recent Advances in Wireless Power Transfer System)

Abstract

This study introduces a new method for real-time efficiency tracking and stable output power of Dynamic Wireless Power Transfer (DWPT) systems using variable capacitors. A preliminary detailed discussion and an analysis of the DWPT system are carried out to show how the system can optimize power transmission and efficiency when the relative positions of transmitter and receiver change using a dynamic real-time control of the variable capacitors belonging to the compensation networks. This paper shows a detailed model of the DWPT system, including magnetic coupling analysis, circuit dynamics analysis, and efficiency characteristics analysis, in order to modify the control input values as needed. By utilizing a group optimization strategy, the transmission efficiency can be quickly maximized without using a position detection module. Simulation results demonstrate the effectiveness of the proposed method under various dynamic conditions, achieving significant improvements in energy efficiency and transmission reliability of the DWPT system. This research provides a powerful method to increase the overall performances of DWPT systems, which will help the development of future wireless charging technology.
Keywords: dynamic wireless power transfer; dynamic compensation network; group optimization dynamic wireless power transfer; dynamic compensation network; group optimization

Share and Cite

MDPI and ACS Style

Zhu, J.; Barmada, S.; Musolino, A.; Sani, L. Maintain Power Transmission and Efficiency Tracking Using Variable Capacitors for Dynamic WPT Systems. Electronics 2024, 13, 2853. https://doi.org/10.3390/electronics13142853

AMA Style

Zhu J, Barmada S, Musolino A, Sani L. Maintain Power Transmission and Efficiency Tracking Using Variable Capacitors for Dynamic WPT Systems. Electronics. 2024; 13(14):2853. https://doi.org/10.3390/electronics13142853

Chicago/Turabian Style

Zhu, Junda, Sami Barmada, Antonino Musolino, and Luca Sani. 2024. "Maintain Power Transmission and Efficiency Tracking Using Variable Capacitors for Dynamic WPT Systems" Electronics 13, no. 14: 2853. https://doi.org/10.3390/electronics13142853

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