Wireless powering by magnetic resonant coupling: Recent trends in wireless power transfer system and its applications

Barman, Surajit Das; Reza, Ahmed Wasif; Kumar, Nagendra; Karim, Mohammad Ershadul; Munir, Ahmad

doi:10.1016/j.rser.2015.07.031

Cited by 249 publications

(177 citation statements)

References 82 publications

Supporting

Mentioning

147

Contrasting

Unclassified

Order By: Relevance

“…Non-radiative WPT can be divided into two common types, namely, magnetic resonant coupling and inductive coupling for midrange and short-range power transfer applications, respectively [56]. The leakage inductance in the energy flow path can be reduced by using both magnetic resonant coupling and inductive coupling to enhance the energy transfer capability of the system [14]. When the maximum energy is consumed by the source, the transferred energy develops to a maximum value, which is subject to matching between source impedance and the input impedance of the source coil.…”

Section: Efficiency Of Power Transfermentioning

confidence: 99%

“…Essentially, WPT ideas originated from "electrical-oriented" power transmission objectives for electromagnetic waves that have much lower frequencies than do optical and infrared ones. The potential of WPT has not yet been well realized, although four recent key technological features, namely: (i) high-density power devices; (ii) high-efficiency rectennas; (iii) innovative circuit architectures; and (iv) low-power integrated circuits (ICs), have been progressing at the research level [14].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

et al. 2017

View full text Add to dashboard Cite

Abstract:Traditional power supply cords have become less important because they prevent large-scale utilization and mobility. In addition, the use of batteries as a substitute for power cords is not an optimal solution because batteries have a short lifetime, thereby increasing the cost, weight, and ecological footprint of the hardware implementation. Their recharging or replacement is impractical and incurs operational costs. Recent progress has allowed electromagnetic wave energy to be transferred from power sources (i.e., transmitters) to destinations (i.e., receivers) wirelessly, the so-called wireless power transfer (WPT) technique. New developments in WPT technique motivate new avenues of research in different applications. Recently, WPT has been used in mobile phones, electric vehicles, medical implants, wireless sensor network, unmanned aerial vehicles, and so on. This review highlights up-to-date studies that are specific to near-field WPT, which include the classification, comparison, and potential applications of these techniques in the real world. In addition, limitations and challenges of these techniques are highlighted at the end of the article.

show abstract

Section: Efficiency Of Power Transfermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In terms of impedance matching, the ideal R Lmat which maximizes the average power of R L is found in the following [7].…”

Section: Optimal Load Resisitance To Realize High Powermentioning

confidence: 99%

“…Many papers use the idea of impedance matching to maximize power at a load, which is reviewed in [7]. It is realized by matching impedance of a load to output impedance of a power source.…”

Section: Introductionmentioning

confidence: 99%

A General Method to Parameter Optimization for Highly Efficient Wireless Power Transfer

Yamaguchi¹,

Hirata²,

Hodaka³

2016

IJECE

View full text Add to dashboard Cite

This paper proposes a new and general method to optimize a working frequency and a load resistance in order to realize highly efficient wireless power transfer. It should be noticed that neither resonant frequency nor matched impedance maximizes efficiency of wireless power transfer circuit, in general. This paper establishes a mathematical model of a commonly used wireless power transfer circuit, and derives a mathematical expression of circuit efficiency which involves a working frequency, a load resistance and the other parameters as symbols. This enables us to find the optimal working frequency and load resistance. The result of this paper is compared with results by a method based on resonance and impedance matching, and then clarified by a numerical example.

show abstract

“…In magnetic coupling principle, the Rx coil is not sufficient to capture the magnetic flux linkage for the power delivery process from source to the load if the coupling distance is large [4]. Therefore, by placing a relay coil between Tx and Rx coils, longer distance for the power transmission process can be achieved [5], [6].…”

Section: Introductionmentioning

confidence: 99%

A study on Relay Effect via Magnetic Resonant Coupling for Wireless Power Transfer

et al. 2016

View full text Add to dashboard Cite

Abstract. Wireless power transfer (WPT) transmits electrical energy from a power source to an electrical load wirelessly or without any conductors. The capability of WPT to transmit the energy is limited. Therefore, a relay was introduced to increase the distance of the WPT capabilities. The effect of the relay has been investigated to extend the energy transfer distance. The effect of relay was demonstrated by placing a relay coil between transmitter and receiver, relay biased to transmitter and placing two relay coils in the designed system. Experimental results are provided to prove the concept of the relay effect. The power transmission efficiency can be achieved up to 75% at 1 meter distance.

show abstract

Wireless powering by magnetic resonant coupling: Recent trends in wireless power transfer system and its applications

Cited by 249 publications

References 82 publications

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

A General Method to Parameter Optimization for Highly Efficient Wireless Power Transfer

A study on Relay Effect via Magnetic Resonant Coupling for Wireless Power Transfer

Contact Info

Product

Resources

About