A contribution to the wireless transmission of power

Tucker, Christopher A.; Warwick, Kevin; Holderbaum, William

doi:10.1016/j.ijepes.2012.10.066

Cited by 19 publications

(12 citation statements)

References 16 publications

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“…Currently, at kilowatts power level, a power transfer efficiency above 90% is obtainable for short distance applications [31]. In the research [32], the authors have proposed a 4 coil structure with transmitting and receiving coils having high quality factors. The proposed model uses very high frequency of 27.50MHz and it was discovered that the model was improved compare to other related models with promising operating characteristics over longer distances, even when smaller coils are used.…”

Section: Fig 3 Schematic Diagram Of the Experimental Setup By Mit [14]mentioning

confidence: 99%

Design and Analysis of Resonant Wireless Power Transfer System

et al. 2018

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In this paper, the modelling and analysis of resonant wireless power transfer (RWPT) system are carried out by using circuit theory. Equations of the efficiency and frequency are derived for basic series-series circuit topology and series-parallel-mixed circuit topology. The designed model uses the series-parallel-mixed topology. The model is tested for two different peak-to-peak voltage levels including 20 V and 40 V. The achieved efficiency at 20 V is 49.10% and at 40 V is 49.52% approximately. The modelling is performed by using advanced design system (ADS) high frequency design software. In addition, an overview of currently available wireless power transfer (WPT) technologies and the recent study on inductive wireless power transfer (IWPT) and resonant wireless power transfer (RWPT) systems is also presented.

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Section: Fig 3 Schematic Diagram Of the Experimental Setup By Mit [14]mentioning

confidence: 99%

Design and Analysis of Resonant Wireless Power Transfer System

et al. 2018

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Section: Wireless Nonradiative Energy Transfermentioning

confidence: 99%

“…Some of the earliest well-known experimentation on the transmission of energy without wires was successfully carried out by Tesla, who focused on nonradiative transmission mechanisms. Although radiative techniques birthed modern wireless radio, not much interest was elicited by the proven nonradiative methods until quite recently [10].Nonradiative energy transfer is facilitated within the nearfield regions of electromagnetic sources, which, typically, are frequency dependent and located within a distance d 2 1 m r h from the source, where m is the wavelength [11]. The spatial range within which energy transfer is possible is typically short and comparable with the dimensions of the electromagnetic source.…”

mentioning

confidence: 99%

Wireless Nonradiative Energy Transfer: Antenna performance enhancement techniques

Eteng

Rahim

Leow

2015

IEEE Antennas Propag. Mag.

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I n recent times, wireless nonradiative energy transfer has elicited considerable research interest. Its varied applications range from contactless battery charging and power delivery to sensors, near-field communications, and radio-frequency identification (RFID). Antenna performance plays a key role in the successful deployment of a wireless energy transfer strategy. This article presents an integrated survey of metrics and methods that have been employed to evaluate and improve antenna performance in nonradiative energy transfer schemes. Wireless NoNradiative eNergy traNsferWireless nonradiative energy transfer is a rapidly developing area of research interest. The application of this technology ranges from RFID systems [1], [2] and near-field communication networks [3], [4] to wireless charging [5]-[7], and wireless power delivery to biomedical sensor implants [8], [9]. Despite the recent attention given to this area, the concept has its origins in the past century. Some of the earliest well-known experimentation on the transmission of energy without wires was successfully carried out by Tesla, who focused on nonradiative transmission mechanisms. Although radiative techniques birthed modern wireless radio, not much interest was elicited by the proven nonradiative methods until quite recently [10].Nonradiative energy transfer is facilitated within the nearfield regions of electromagnetic sources, which, typically, are frequency dependent and located within a distance d 2 1 m r h from the source, where m is the wavelength [11]. The spatial range within which energy transfer is possible is typically short and comparable with the dimensions of the electromagnetic source. Energy exchange is more efficient when both the electromagnetic source and receiver share the same resonance frequency, as less energy is dissipated on nonresonant objects within the vicinity [12]. Consequently, the source and receiving electromagnetic terminals are sometimes referred to as resonators [4].Antenna theory reveals the presence of a reactive near-field region in close proximity to the surface of an antenna and a radiative near-field region in the transition zone between the near-and far-field regions [13]. Wireless nonradiative energy transfer primarily occurs in the reactive near-field region, where the electric and magnetic fields of an antenna are uncoupled and nonpropagating. Although the energy in any of these fields can be utilized, using the magnetic field ensures a lower interaction of the system with extraneous objects [12]. This requires the use of antennas that predominantly excite the TE 10 mode to enable the coupling of magnetic fields [14], [15]. Hence, in the literature, there is a preponderance of the use of spirals, helixes, coils, and other loop-inspired antenna geometries.Antennas used in wireless nonradiative applications require a different set of performance metrics than typical antennas for radiative applications. First, high radiation efficiency is not required to prevent eavesdropping in data-centric applicat...

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“…At a bigger scale, thinking about grid power transfer, [31] presents some results about wireless power transfer, although at reduced distances, as electromagnetic energy has a strong decay over distance and with the frequency being used.…”

Section: Radio Frequency Electromagnetic Energymentioning

confidence: 99%

Energy Harvesting Electronic Systems

Carvalho

Paulino

2015

CMOS Indoor Light Energy Harvesting System for Wireless Sensing Applications

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This chapter presents a literature review about the various ambient energy sources that can be harvested and the description of some related systems. As such, this chapter will provide a brief overview about each source and describe some systems that use that same energy source. This will be extended on to the domain of the wireless sensor networks and the aspects related to it, being presented some examples of energy harvesting powered WSN in different environments. A brief description of what is expected from each network and how it succeeds in harvesting the energy that enables it to work will receive a particular focus. Since light is the energy source being harvested, in order to power the system described in this book, some more attention will be dedicated to the analysis of this source.

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A contribution to the wireless transmission of power

Cited by 19 publications

References 16 publications

Design and Analysis of Resonant Wireless Power Transfer System

Design and Analysis of Resonant Wireless Power Transfer System

Wireless Nonradiative Energy Transfer: Antenna performance enhancement techniques

Energy Harvesting Electronic Systems

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