A Wireless Charging System Applying Phase-Shift and Amplitude Control to Maximize Efficiency and Extractable Power

Berger, Andreas and Agostinelli, Matteo and Vesti, Sanna and Oliver Ramírez, Jesús Angel and Cobos Marquez, Jose Antonio and Huemer, Mario (2015). A Wireless Charging System Applying Phase-Shift and Amplitude Control to Maximize Efficiency and Extractable Power. "IEEE Transactions on Power Electronics", v. 30 (n. 11); pp. 6338-6348. ISSN 0885-8993. https://doi.org/10.1109/TPEL.2015.2410216.

Description

Title: A Wireless Charging System Applying Phase-Shift and Amplitude Control to Maximize Efficiency and Extractable Power
Author/s:
  • Berger, Andreas
  • Agostinelli, Matteo
  • Vesti, Sanna
  • Oliver Ramírez, Jesús Angel
  • Cobos Marquez, Jose Antonio
  • Huemer, Mario
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Power Electronics
Date: November 2015
ISSN: 0885-8993
Volume: 30
Subjects:
Freetext Keywords: Dc-dc power converters, wireless charging, impedance matching, inductive power transmission, phase-shift control, reactive power control, rectifiers wireless charging
Faculty: E.T.S.I. Industriales (UPM)
Department: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Wireless power transfer (WPT) is an emerging technology with an increasing number of potential applications to transfer power from a transmitter to a mobile receiver over a relatively large air gap. However, its widespread application is hampered due to the relatively low efficiency of current Wireless power transfer (WPT) systems. This study presents a concept to maximize the efficiency as well as to increase the amount of extractable power of a WPT system operating in nonresonant operation. The proposed method is based on actively modifying the equivalent secondary-side load impedance by controlling the phase-shift of the active rectifier and its output voltage level. The presented hardware prototype represents a complete wireless charging system, including a dc-dc converter which is used to charge a battery at the output of the system. Experimental results are shown for the proposed concept in comparison to a conventional synchronous rectification approach. The presented optimization method clearly outperforms state-of-the-art solutions in terms of efficiency and extractable power.

More information

Item ID: 40755
DC Identifier: http://oa.upm.es/40755/
OAI Identifier: oai:oa.upm.es:40755
DOI: 10.1109/TPEL.2015.2410216
Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7054549
Deposited by: Memoria Investigacion
Deposited on: 07 Jun 2016 10:33
Last Modified: 07 Jun 2016 11:01
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