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Wireless energy transfer - resonant inductive coupling

Total activity: 67
Type of activity
Competitive project
Funding entity
Funding entity code
108.900,00 €
Start date
End date
AC magnetic field modelling, Cálculo mediante elementos finitos de campo, Transferencia de potencia inalámbrica (WPT), acoplamiento inductivo resonante (RIC), finite element field solver, modelización en AC del campo magnético, modelizado comportamental multidominio y multifísico, multi-physics multi-domain behavioural modelling, resonant inductive coupling (RIC), wireless power transfer (WPT)
The main objective of this sub-project (sub-project 2) concurs and converges with that of the coordinated project, namely: The wireless power transfer
(WPT) to autonomous electronic devices in medium power range (10 mW to 10 W) and distances (10 cm to 10 m) by means of MHz-band AC magnetic
fields (Resonant Inductive Coupling, RIC) and electromagnetic fields (Radio Frequency, RF). This transfer has to be ROBUST to interferences and safe
This sub-project, which is focused in the magnetic fields and the system modelling perspectives of a RIC WPT link, projects its activity on two aspects,
namely the first one technological, and the second one, biomedical:
- The objectives of the TECHNOLOGY side are:
1) Modeling, characterization and prediction of magnetic fields (near field and mid range) in order to analyze the effects of interferences, variable
distance and relative position in energy transfer RIC-WPT, considering as a representative special case an asymmetric link both as regards power and
size, ultimately deriving a general-purpose scalable model.
2) Behavioral modelling and performance metrics modeling of high-frequency and high-efficiency power converters specific for electronic frontends in
resonant inductive coupling.
3) Modeling of the inductive element oriented to coupling fields.
4) Modeling and co-design environment oriented to the complete system optimization, in order to maximize energy transfer.
5) From the field and system perspective, studying the impedance matching required in each system interface to perform the adaptive tuning as regards
distance and position variations.
6) Exploring the feasibility of a dual system that can transfer energy using both inductive coupling and electromagnetic RF fields in order to cover an
extended distance range.
7) In addition, the effect of co-existence of fields will be investigated in order to explore a smooth transition, as well as explore the viability of obtaining a
single and dual power transfer element.
This sub-project is complementary to the sub-project 1 wherein the design and implementation of converters and inductors is discussed, as well as the
RF system. Objectives 2, 3, 4, 5, 6 and 7 of the sub-project 2, detailed in the previous paragraph, require the coordinated support and the close
multidisciplinary co-design tasks performed in the aforementioned sub-project 1.
As a first proof of concept, which experimentally validates and illustrates the capabilities of this technology, the application of fractionated satellites is
addressed. In this application, a particular satellite provides different horizontal services (communications, ENERGY, etc.) to other subsidiary satellites
specialized in a particular task. Thus, they can be put into orbit later, configuring the network of fractionated satellites, considering RIC-WPT as wireless
medium of adaptive energy exchange.
- The BIOMEDICAL side has two specific goals. The first one is to study the impact of inductive coupling on health, here from the field and system
modelling perspective. The second objective is in another application selected to validate the concept: Wireless energy transfer to an artificial
Both demonstrators will be addressed in this subproject 2 based on the distribution of fields and the study of the complete model-centric system-level
Adm. Estat
Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016
Call year
Funcding program
Programa Estatal de I+D+i Orientada a los Retos de la Sociedad
Funding call
Retos de Investigación: Proyectos de I+D+i
Grant institution
Gobierno De España. Ministerio De Economía Y Competitividad, Mineco


Scientific and technological production

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