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Control method for wireless inductive energy transfer systems with relatively large air gap

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10.1109/TIE.2011.2163917
 
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hdl:2117/16766

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Van Der Pijl, Frank F. A
Bauer, Pavol T.
Castilla Fernández, MiguelMés informacióMés informacióMés informació
Document typeArticle
Defense date2013
PublisherIEEE Press. Institute of Electrical and Electronics Engineers
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
Recent improvements in semiconductor technology make efficient switching possible at higher frequencies, which benefits the application of wireless inductive energy transfer. However, a higher frequency does not alter the magnetic coupling between energy transmitter and receiver. Due to the still weak magnetic coupling between transmitting and receiving sides that are separated by a substantial air gap, energy circulates in the primary transmitting side without being transferred to the secondary receiving side. This paper introduces an energy control method that reduces energy circulation in the primary to zero. Themethod makes use of the fact that energy can be stored in a magnetic field by the primary side and absorbed by the secondary side. Furthermore, the secondary side converter topology is modified in order to boost the damping as seen by the primary converter at required times. Essentially, the control method realizes an energetic coupling factor of one between the air coils of the wireless transformer. The working principle of the controlmethod has been verified with an experimental setup.
CitationVan Der Pijl, F.; Bauer, P.; Castilla, M. Control method for wireless inductive energy transfer systems with relatively large air gap. "IEEE transactions on industrial electronics", 2013, vol. 60, núm. 1, p. 382-390. 
URIhttp://hdl.handle.net/2117/16766
DOI10.1109/TIE.2011.2163917
ISSN0278-0046
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  • Departament d'Enginyeria Electrònica - Articles de revista [1.664]
  • SEPIC - Sistemes Electrònics de Potència i de Control - Articles de revista [116]
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