Prospects of Capacitive Wireless Power Transfer (C-WPT) for Unmanned Aerial Vehicles

Vincent, Deepa; Huynh, Phuoc Sang; Patnaik, L. M.; Williamson, Sheldon S.

doi:10.1109/wow.2018.8450918

Cited by 19 publications

(14 citation statements)

References 16 publications

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“…The main advantages of CCWPT technology are low cost, low weight, and low eddy current loss in nearby metals [40]. CCWPT can be used in short distance and low power applications, such as integrated circuits (IC) [41], biomedical devices [42,43], LED lighting [44], USB, and mobile device charging [45,46], especially for UAV wireless charging [47][48][49]. In addition, it can be also adopted to realize high power level applications such as synchronous machine excitation [50][51][52] and either static or dynamic electric vehicle charging systems [53][54][55].…”

Section: Acmentioning

confidence: 99%

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Electromagnetic Field Based WPT Technologies for UAVs: A Comprehensive Survey

Nguyen

Truong

et al. 2020

Electronics

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Wireless power transfer (WPT) techniques are important in a variety of applications in both civilian and military fields. Unmanned aerial vehicles (UAVs) are being used for many practical purposes, such as monitoring or delivering payloads. There is a trade-off between the weight of the UAVs or their batteries and their flying time. Their working time is expected to be as long as possible. In order to support the UAVs to work effectively, WPT techniques are applied with UAVs to charge secondary energy supply sources in order to increase their working time. This paper reviews common techniques of WPT deployed with UAVs to support them while working for different purposes. Numerous approaches have been considered to illustrate techniques to exploit WPT techniques. The charging distances, energy harvesting techniques, electronic device improvements, transmitting issues, etc., are considered to provide an overview of common problems in utilizing and charging UAVs. Moreover, specific problems are addressed to support suitable solutions with either techniques or applications for UAVs.

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Section: Acmentioning

confidence: 99%

“…In [49], Deepa Vincent et al proposed a method of wireless charging for unmanned aerial vehicles (UAVs) in farming. The method helped increase the flying time and range of UAVs, making them more productive.…”

Section: Ccwpt: Deployed Systemsmentioning

confidence: 99%

Electromagnetic Field Based WPT Technologies for UAVs: A Comprehensive Survey

Nguyen

Truong

et al. 2020

Electronics

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“…By employing energy harvesting, the same UAVs can be used to serve the cellular users for a comparatively longer duration to increase the air time of UAV. In this regard, there exist only very few studies [25]- [29] that discussed UAVs with energy-harvesting capabilities for wireless networking. In [25], the authors studied the problem of energy management in HetNets that integrate solar-powered drones.…”

Section: A Energy Efficiency In Uav-assisted Cellular Networkmentioning

confidence: 99%

Energy Efficient Resource Allocation in UAV-based Heterogeneous Networks

Manzoor

Kim

Hong

2019

2019 20th Asia-Pacific Network Operations and Management Symposium (APNOMS)

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Unmanned aerial vehicles (UAVs) can provide an effective solution for improving the coverage, capacity, and the overall performance of terrestrial wireless cellular networks. In particular, UAV-assisted cellular networks can meet the stringent performance requirements of the fifth generation new radio (5G NR) applications. In this paper, the problem of energy-efficient resource allocation in UAV-assisted cellular networks is studied under the reliability and latency constraints of 5G NR applications. The framework of ruin theory is employed to allow solar-powered UAVs to capture the dynamics of harvested and consumed energies. First, the surplus power of every UAV is modeled, and then it is used to compute the probability of ruin of the UAVs. The probability of ruin denotes the vulnerability of draining out the power of a UAV. Next, the probability of ruin is used for efficient user association with each UAV.Then, power allocation for 5G NR applications is performed to maximize the achievable network rate using the water-filling approach. Simulation results demonstrate that the proposed ruin-based scheme can enhance the flight duration up to 61% and the number of served users in a UAV flight by up to 58%, compared to a baseline SINR-based scheme.

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“…Murata Electronics Europe adopted this method, and it has become popular because of good galvanic isolation, low cost, and the potential for operation at a higher frequency rating than that of the magnetic core [4,5]. The CPT system has been widely used in previous applications, such as electric vehicle (EV) charging [6][7][8][9][10], drones [11][12][13], variable message displays [14], and others. Previous research on low-power [11,15] and high-power [16] applications of CPT has been conducted with a reported efficiency of more than 90%.…”

Section: Introductionmentioning

confidence: 99%

Scaling-Factor and Design Guidelines for Shielded-Capacitive Power Transfer

2020

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This paper introduces scaling-factor and design guidelines for shielded-capacitive power transfer (shielded-CPT) systems, offering a simplified design process, coupling-structure optimization, and consideration of safety. A novel scaling-factor-analysis method is proposed by determining the configuration of the coupling structure that improves system safety and increases operating efficiency while minimizing the gap between the shield and the coupler plate. The inductor-series resistance is also analyzed to study the loss efficiency in the shielded-CPT system. The relationship among the shield-coupler gap, distance between the couplers, conductive-plate size, and delivered power is examined and presented. The proposed method is validated by implementing the shielded-CPT system with hardware and the result suggests that the proposed method can be used to design shielded-CPT systems with scaling-factor and safety considerations.

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Prospects of Capacitive Wireless Power Transfer (C-WPT) for Unmanned Aerial Vehicles

Cited by 19 publications

References 16 publications

Electromagnetic Field Based WPT Technologies for UAVs: A Comprehensive Survey

Electromagnetic Field Based WPT Technologies for UAVs: A Comprehensive Survey

Energy Efficient Resource Allocation in UAV-based Heterogeneous Networks

Scaling-Factor and Design Guidelines for Shielded-Capacitive Power Transfer

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