Design of multiple receiver for wireless power transfer using metamaterial

Lee, Sungje; Kim, Sanghwan; Seo, Chulhun

doi:10.1109/apmc.2013.6695016

Cited by 13 publications

(9 citation statements)

References 5 publications

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“…Some studies have focused on improving the system efficiency and providing voltage control on MRWPT systems, as discussed in References [10][11][12][13][14][15]. A MRWPT system [10] is proposed for portable devices with simplified receiver design.…”

Section: Introductionmentioning

confidence: 99%

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Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Cai

Lai

et al. 2020

Energies

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The cross-coupling effect between the induction coils of a multiple-receiver wireless power transfer (MRWPT) system severely weakens its overall performance. In this paper, a time-sharing control strategy for MRWPT systems is proposed to reduce the cross-coupling between receiver coils. An active-bridge rectifier is introduced to the receivers to replace the uncontrollable rectifier to achieve synchronization of the time-sharing control. The synchronization signal generated by an active-bridge rectifier can be directly used to realize the synchronization of time-sharing control and hence saved the traditional zero-crossing point detection circuits for time-sharing circuits. Moreover, the proposed time-sharing system has the advantages of both operating under a resistance-matching condition and providing target output voltage for each receiver. Furthermore, a voltage control strategy was developed to provide both high efficiency and a target output voltage for each receiver. Finally, the simulation and experimental results show that the time-sharing MRWPT system reduced the cross-coupling effect between the receiver coils, and the voltage control strategy provided both a high efficiency and a target output voltage for each receiver.

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Section: Introductionmentioning

confidence: 99%

“…To increase the system's efficiency, impedance matching theory [12] is analyzed within an MRWPT system. Moreover, metamaterials are introduced to the MRWPT system to improve the system's efficiency, and as a result, the efficiency is improved by approximately 20% [13].…”

Section: Introductionmentioning

confidence: 99%

Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Cai

Lai

et al. 2020

Energies

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“…This technology development is significant to the future requirement which are more focusing on the mobility of appliances and devices. Conventional wired mobile phone charger seems irrelevant in this era due to user-friendly issues which reduce the user's mobility during charging process [2]. Currently, the wireless charger technology is not being practical as the phone need to be directly contact with the charging dock during charging process.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Wireless Power Transfer Configuration for High Efficiency Achievement

Hashim

Ponniran

2020

Periodicals of Evolution in Electrical and Electronic Engineering 2020/1

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This paper discusses the efficiency improvement of a wireless power transfer system based on parameters design optimization. The wireless power transfer system is designed to operate at higher frequencies in order to reduce the component sizing as well as power density improvement. Configuration of the wireless power transfer system, i.e., transmitter and receiver coil are designed based on proper resonance frequency. The principle of the parameters design optimization is based on the single transmitter – multiple receiver coil configuration which reduces the system complexity and magnetic resonant method implementation which amplify the energy transferred between the coils. Simulation using ANSYS Maxwell and ANSYS Simplorer software shows the system efficiency is at the peak at the resonance frequency of 13.5571 MHz with a total power of 18 W delivered at a distance of 5 mm. Furthermore, the efficiency of AC – DC converter and high frequency DC – AC converter considered for power conversions are 99.81% and 99.51% respectively. Therefore, the maximum power transfer efficiency of the considered wireless power transfer system configuration is determined through this study.

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“…Some research on single-transmitter multiple-receiver WPT (STMRWPT) systems is presented in [24,[32][33][34][35][36]. A STMRWPT system is developed in [32] for portable devices which are of low-complexity receiver design.…”

Section: Introductionmentioning

confidence: 99%

“…To maximize the efficiency in STMRWPT system, impedance matching theory is introduced to the STMRWPT system [24]. To increase system efficiency, metamaterials [34] are introduced to multiple receiver WPT system, where the efficiency is increased by about 20%. To provide high efficiency and target output power in a two-receiver WPT system, a control strategy based on simplified math model is proposed [35].…”

Section: Introductionmentioning

confidence: 99%

Management of Multiple-Transmitter Multiple-Receiver Wireless Power Transfer Systems Using Improved Current Distribution Control Strategy

Cai

Lai

et al. 2019

Electronics

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For high-power single-transmitter single-receiver wireless power transfer (STSRWPT) systems, the coils suffer from high voltage and current stresses. With increased power requirements, the coils become bottlenecks for power flow. To increase the power level, multiple-transmitter multiple-receiver wireless power transfer (MTMRWPT) systems with parallel circuits are developed that reduce the voltage and current stresses on the coils and improve power-handling capability. Firstly, an improved current distribution (ICD) control strategy is developed to simultaneously achieve high transfer efficiency, balanced current distribution and constant output voltage. Secondly, it is further shown that the ICD control strategy has the advantage that the currents at the transmitter coils are balanced and it reduces the control complexity simultaneously. Thirdly, an asynchronous particle swarm optimization (APSO) algorithm is applied to the ICD control strategy to verify the feasibility of the proposed control strategy. Lastly, a two-transmitter two-receiver wireless power transfer (WPT) system based on the ICD control strategy is proved to obtain an efficiency of more than 89.1% and provides the target output voltage 20 V with balanced current distribution.

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Design of multiple receiver for wireless power transfer using metamaterial

Cited by 13 publications

References 5 publications

Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Optimization of Wireless Power Transfer Configuration for High Efficiency Achievement

Management of Multiple-Transmitter Multiple-Receiver Wireless Power Transfer Systems Using Improved Current Distribution Control Strategy

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