2020
DOI: 10.3390/electronics9030461
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Electromagnetic Field Based WPT Technologies for UAVs: A Comprehensive Survey

Abstract: 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 s… Show more

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Cited by 51 publications
(29 citation statements)
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References 126 publications
(151 reference statements)
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“…To this end, one effective approach is the inter-cooperation of multiple UAVs in order to enable sequential energy replenishment. For example, this can be performed through the adoption of wireless power transfer techniques (WPTs) for charging drone battery [39]. On the other hand, energy-efficient operations aim to reduce unnecessary energy consumption by the UAVs.…”
Section: A Energy Efficiencymentioning
confidence: 99%
“…To this end, one effective approach is the inter-cooperation of multiple UAVs in order to enable sequential energy replenishment. For example, this can be performed through the adoption of wireless power transfer techniques (WPTs) for charging drone battery [39]. On the other hand, energy-efficient operations aim to reduce unnecessary energy consumption by the UAVs.…”
Section: A Energy Efficiencymentioning
confidence: 99%
“…Moreover, this requires the drone to maintain flight (hovering) during the charging process, which requires additional charging power and very accurate hovering capabilities (above the power lines). For recent surveys on wireless-charging methods, see [7,29]. We were unable to design a reliable power-line wireless-charging mechanism for small drones; therefore, we limited the scope of this paper to direct (contact) charging of the drone from low-voltage power lines.…”
Section: Motivationmentioning
confidence: 99%
“…Numerous researchers have made significant contributions to control load power and enhance efficiency in WPT systems. T. Nguyen et al [7] have provided a comprehensive survey on EM based WPT technologies for UAVs. C. Cai et al [8] designed a magnetic coupler for wireless charging of AUVs.…”
Section: Related Workmentioning
confidence: 99%
“…Researchers have involved dynamic controlling impedance matching to realize tunable allocation of power. In [7], scholars have maximized WPT system efficiency through impedance matching in S-S compensation topology of a multiload system. Another challenging factor in WPT systems appears to be distance between transmitter and receiver component.…”
Section: Practical Considerations and Research Challengesmentioning
confidence: 99%