Development of wireless power transfer systems and control strategies for static and dynamic wireless charging applications

Name: Chan Anyapo

LCSH: Kasetsart University -- Dissertations. D.Eng. (Electrical Engineering) 2022

Classification :.LCCS: TK3088

LCSH: Kasetsart University. -- Department of Electrical Engineering -- Dissertations

LCSH: Wireless power transmission

LCSH: Battery chargers

LCSH: Battery charging stations (Electric vehicles)

Abstract: In this thesis, a wireless power transfer (WPT) system using a virtual-current source resonant inverter (VCSRI) has been developed. The concept, theoretical analysis, simulations and experimental results have been reported. To validate the proposed WPT system, a scaled-down laboratory hardware prototype was built and tested. Then, the results were revealed that the proposed WPT could work properly when compare between simulations and experimental results. The comparison of maximum dc to dc power efficiencies between the conventional system (without control) and the proposed system (VCSRI) were 52 % and 60 %, respectively. A MultiCoiled Full-Bridge (MCFB) resonant inverter was proposed for a dynamic wireless charging application, with the design concept and theoretical analysis discussed. The newly designed dynamic wireless charging system uses switch-branched sharing (SBS), so that the number of power semiconductor devices is reduced. The closed-loop control strategy for MCFB resonant inverter is presented without any communication between the transmitting and receiving side. The study of optimal conditions to achieve maximum efficiency transfer with respect to resistive load has been investigated. Then, applying the optimal resistive value improves the total efficiency. A 100 W scaleddown prototype MCFB resonant inverter consisting of four transmitting coupler modules and two receiving coupler modules was implemented. Moreover, the dynamic power transferring was measured at various speeds. Finally, various experimental tests were undertaken to confirm the proposed system’s feasibility. In addition, the studying on optimal condition for achieving maximum efficiency with respect to resistive load, a comparison with other related works, and testing results of dynamic or moving power transferring condition, have been presented in this thesis.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Chowarit Mitsantisuk

Role: Thesis Advisor

Name: Nithiphat Teerakawanich

Role: Thesis CO-Advisor

Created: 2022

Modified: 2025-07-14

Issued: 2025-07-14

วิทยานิพนธ์/Thesis

application/pdf

URL: https://www.lib.ku.ac.th/KUthesis/2565/chan-any-all.pdf

CallNumber: TK3088 .C43

eng

DegreeName: Doctor of Engineering

Level: Doctoral Degraee

Descipline: Electrical Engineering

Grantor: Kasetsart University

©copyrights Kasetsart University

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