Optimal Air-gap of a Magnetic Resonant Inductive Link for Maximum Wireless Power Transfer

Sahany, Siddharth; Biswal, Sushree Sangita; Sahoo, Pradyumna Kumar; Kar, Durga Prasanna; Bhuyan, Satyanarayan

doi:10.1109/iicpe.2018.8709612

Cited by 3 publications

(4 citation statements)

References 19 publications

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“…The simulated results presented in Fig. 6 are compared with the experimental observations [11], illustrated in Fig. 7.…”

Section: Fig 3: Effect On Magnetic Field Strength With Variation Of mentioning

confidence: 99%

“…Even though RIC-WPT system is proved to be better in efficiency, compared to its contemporary technology but so far not adopted worldwide as the best one due to its poor low power delivery capability even at perfectly tuned condition [9][10][11][12][13][14]. Generally RIC-WPT system comprises of two major parts, RF power electronic circuit at transmitter and at the receiver side and the resonant inductive link.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Physical Coil Separation Condition for Wireless Charging System

Sahany¹,

Biswal²,

Kar³

et al. 2019

IJEAT

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Now-a-days, wireless transfer of electric power has received much attention in the world arena. As a safe, reliable and convenient technology, Magnetic resonance coupling (MRC) based wireless power transfer (WPT) system shows a remarkable ability to power up in a wide range from mW to kW range. In this paper conventional magnetic field analysis with maximum power transfer theorem has been used to explain the frequency characteristics of the transferred load power. The intensity of magnetic field, induced receiver voltage, physical air gap of coils relating to the dimension of the coils has been examined. The experimental results are well agreed with the theoretical results. The acquired analysis depicts the optimal physical separation condition relating to the size of the charging coils of a WPT system.

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“…The simulated results presented in Fig. 6 are compared with the experimental observations [11], illustrated in Fig. 7.…”

Section: Fig 3: Effect On Magnetic Field Strength With Variation Of mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Physical Coil Separation Condition for Wireless Charging System

Sahany¹,

Biswal²,

Kar³

et al. 2019

IJEAT

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“…The efficiency of WPT in the resonant inductive link is directly proportional to the magnetic field. Based on this, Sahany et al in [89] researched the influence of the critical separation air-gap allied with the coil dimension on maximum WPT in a resonant inductive bonding. The proposed solution used the equivalent circuit model and analysis of the most accurate magnetic field to build the transmission energy to the load, then combine them with the design of coil parameters to assist in finding the optimal distance gap.…”

Section: Resonant Inductive Couplingmentioning

confidence: 99%

Wireless Power Transfer Near-field Technologies for Unmanned Aerial Vehicles (UAVs): A Review

Le¹,

Truong²,

Quyen³

et al. 2020

EAI Endorsed Transactions on Industrial Networks and Intelligen

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Wireless power transfer (WPT) techniques are being popular currently with the development of midrange wireless powering and charging technology to gradually substitute the need for wired devices during charging. Unmanned Aerial Vehicles (UAVs) are also being used with many practical purposes for agriculture, surveillance, and healthcare, etc. There is a trade-off between the weight of the UAVs or their batteries and their flying time. In order to support those UAVs perform better in their tasks, WPT is applied in UAVs to recharge batteries which help to increase their working time. This paper highlights up-to-date studies that are specific to near-field WPT deploying into UAVs. The charging distances, the transfer efficiency, and transfer power, etc. are considered to provide an overview of all common problems in using and charging UAVs, especially for autonomous landing and charging. By classification and suggestions in specific problems will be provided opportunities and challenges with respect to apply near-field WPT techniques for charging the battery of UAVs and other applications in the real world.

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“…Many research reports [4][5][6][7] revealed that the non-radiative magnetically coupled WPTS, which illustrated the possibility to transmit power more efficiently for EV charging than the conventional inductive systems. The idea of magnetic resonance based wireless charging for EVs is recently getting much attention by industry as well as academic groups [8,9]. Nonetheless, for designing practical EV charging setup, it is not adequate to just substantiate the power transmission between the transmitting and receiving charging coils bututmost needed to surmount the associated key issues that influence the power transfer efficiency.…”

Section: Introductionmentioning

confidence: 99%

Performance Estimation of Wireless Electric Vehicle Charging System Based On Magnetic Coupling

Biswal*,

Sahany,

Sahoo

et al. 2019

IJEAT

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In order to achieve an efficient wireless Electric Vehicle (EV) charging system in non-ideal practical scenarios, a proper design guideline has been delineated through the simulation, theoretical calculation as well as experimental investigation. It is examined that the wireless power transfer efficiency (WPTE) is invariably affected by the configuration of the charging coils (coil radius & number of turns), coupling to loss ratio, ohmic loss, radiation resistance, operating frequency, magnetic coupling as well as physical air gap between the coils. It is found that there is a certain operating regime at which maximum WPTE can be uphold. The acquired results provide a comprehensive strategic plan that can be used in EV charging system

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Optimal Air-gap of a Magnetic Resonant Inductive Link for Maximum Wireless Power Transfer

Cited by 3 publications

References 19 publications

Optimal Physical Coil Separation Condition for Wireless Charging System

Optimal Physical Coil Separation Condition for Wireless Charging System

Wireless Power Transfer Near-field Technologies for Unmanned Aerial Vehicles (UAVs): A Review

Performance Estimation of Wireless Electric Vehicle Charging System Based On Magnetic Coupling

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