Transfer efficiency optimal control of magnetic resonance coupled system of wireless power transfer based on frequency control

Tan, Lijing; Huang, Xueliang; Huang, Hui; Yuwei, Zou; Li, Hui

doi:10.1007/s11431-011-4380-6

Cited by 52 publications

(18 citation statements)

References 8 publications

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“…Transient analysis based on CT is sometimes more accurate than that based on CMT [18], thus CT is widely adopted. Various hot research spots, including system architectures [14][15][16][17], frequency splitting [11,24,26,28,48,49], impedance matching methods [20,26,27,[50][51][52][53][54][55][56][57][58][59][60], optimization designs [25,42,[61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][77] and practical applications [37,[78][79][80][81]…”

Section: Introductionmentioning

confidence: 99%

A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances

2014

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Strongly coupled magnetic resonance (SCMR), proposed by researchers at MIT in 2007, attracted the world's attention by virtue of its mid-range, non-radiative and high-efficiency power transfer. In this paper, current developments and research progress in the SCMR area are presented. Advantages of SCMR are analyzed by comparing it with the other wireless power transfer (WPT) technologies, and different analytic principles of SCMR are elaborated in depth and further compared. The hot research spots, including system architectures, frequency splitting phenomena, impedance matching and optimization designs are classified and elaborated. Finally, current research directions and development trends of SCMR are discussed.

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Section: Introductionmentioning

confidence: 99%

A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances

2014

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“…Experimental results of [52] show that frequency control can increase the transfer distances. For example, when the frequency band is 2 MHz, the transfer distance can only be roughly 50 cm, whereas the transfer distance can improve to 99.5 cm when the frequency band is adjusted to 30 MHz.…”

Section: Frequencymentioning

confidence: 96%

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

et al. 2017

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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.

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“…Energies 2016, 9, 576 5 of 16 The proximity effect and the skin effect are ignored for the calculation of ∆R as long as the constraints shown in Equation (9) [22,23] and Equation (10) [24] are satisfied:…”

Section: Influence Of a Single-side Metal Plate On Multi-turn Coilmentioning

confidence: 99%

Analysis and Performance Improvement of WPT Systems in the Environment of Single Non-Ferromagnetic Metal Plates

Tan

Chen

et al. 2016

Energies

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Abstract:Wireless power transfer (WPT) is greatly affected when the transmission channel is surrounded by non-ferromagnetic metallic objects and the alternating magnetic field interacts with the metal conductor, which is more of an issue in wirelessly charged electric vehicle (EV) applications. This paper analyses the performances of a WPT system in an environment with a non-ferromagnetic metal plate. The impedance model of the WPT system in the metal environment is established. Moreover the variation law of a coil's equivalent inductance and resistance is deduced when the coil is surrounded by the non-ferromagnetic metal plate. Meanwhile, simulations, theory and experiments all confirm that the model is correct. Finally, since the system performance of a wireless charging system is influenced by non-ferromagnetic metals, this paper puts forward a method to improve the performance, that is, to place ferrite cores between the receiving coil and a metal plate. Experiments are carried out to verify the method, and the desired results are achieved.

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Transfer efficiency optimal control of magnetic resonance coupled system of wireless power transfer based on frequency control

Cited by 52 publications

References 8 publications

A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances

A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances

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

Analysis and Performance Improvement of WPT Systems in the Environment of Single Non-Ferromagnetic Metal Plates

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