Wireless Power Transmission: A survey

Pudur, Rajen; Hanumante, Vivek; Shukla, Satya Prakash; Kumar, Krishna

doi:10.1109/icraie.2014.6909283

Cited by 8 publications

(3 citation statements)

References 41 publications

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“…Currently, WPT technology is mainly divided into three categories [3], namely, non-radiative WPT, radiative WPT, and electromechanical WPT. Among them, the most extensively studied are inductively coupling wireless power transmission (ICPT) [4], magnetic resonant coupling wireless power transmission (MRWPT) [5], microwave wireless power transmission (MWPT) [6], and laser wireless power transmission (LWPT) [7].…”

Section: Introductionmentioning

confidence: 99%

Single-Wire Electric-Field Coupling Power Transmission Using Nonlinear Parity-Time-Symmetric Model with Coupled-Mode Theory

Shu

Zhang

2018

Energies

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The output power and transmission efficiency of the traditional single-wire electric-field coupling power transmission (ECPT) system will drop sharply with the increase of the distance between transmitter and receiver, thus, in order to solve the above problem, in this paper, a new nonlinear parity-time (PT)-symmetric model for single-wire ECPT system based on coupled-mode theory (CMT) is proposed. The proposed model for single-wire ECPT system not only achieves constant output power but also obtains a high constant transmission efficiency against variable distance, and the steady-state characteristics of the single-wire ECPT system are analyzed. Based on the theoretical analysis and circuit simulation, it shows that the transmission efficiency with constant output power remains 60% over a transmission distance of approximately 34 m without the need for any tuning. Furthermore, the application of a nonlinear PT-symmetric circuit based on CMT enables robust electric power transfer to moving devices or vehicles.Energies 2018, 11, 532 2 of 10 frequency splitting and stability of ICPT [8][9][10]. In practical application, inductive wireless charging for electric vehicles, mobile robots, and implanted devices were studied [11][12][13]. Professor Marin of MIT (Massachusetts Institute of Technology) proposed a new MRWPT technology and published it in the magazine Science in 2007 [5]. Until now, great progress has been made in the modeling of the system, impedance matching, electromagnetic safety, and standard setting [14,15]; in the application, Haier developed the tailless television in 2010, the KAIST (Korea Advanced Institute of Science and Technology) established a 12-km demonstration route of dynamic power supply for electric vehicles in Gumi city, South Korea in 2015, and the company of Zhonghui Chuangzhi in China applied MRWPT technology to charge a mine equipment monitoring system. As early as 1964, Willian C. Brown of Raytheon succeeded in using the MWPT technology to power a helicopter platform [16]. Subsequently, many scientists continued to study this technology, however, the bottleneck of transmission efficiency higher than 10% cannot be broken through. The technology of LWPT is still in the experimental stage and has not been put into practical application, Japan started experimenting on LWPT in 1997 [17], and used laser energy to power robots, kites, and helicopters [7,18]; scientists from Germany and the United States conducted experiments about LWPT in succession [19,20]. The first two WPT technologies have more extensive application and development prospects since the transmission efficiency of the latter two kinds of WPT technology is very low and the sensitivity of the direction is extremely high. The transmission distance of inductively coupling WPT is relatively close, in the range of tens of centimeters, and the distance of magnetic resonant coupling WPT is relatively far, in the range of a few meters, while its output power is not high, only suitable for low-power applications, such as mobile pho...

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Section: Introductionmentioning

confidence: 99%

Single-Wire Electric-Field Coupling Power Transmission Using Nonlinear Parity-Time-Symmetric Model with Coupled-Mode Theory

Shu

Zhang

2018

Energies

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“…The problem of limited battery lifetime in mobile devices has been resolved by using wireless power transfer (WPT) [7]. In particular, receivers collect energy sent by the transmitters using the far-field radiative characteristics of electromagnetic waves.…”

Section: Introductionmentioning

confidence: 99%

Throughput Maximization for RIS-Assisted UAV-Enabled WPCN

Zhang,

Tang,

Feng

et al. 2024

IEEE Access

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This paper investigates a reconfigurable intelligent surface (RIS)-assisted unmanned aerial vehicle (UAV)-enabled wireless powered communication network (WPCN). In the system, a UAV acts as a hybrid access point (HAP) to charge users in the downlink (DL) and receive messages in the uplink (UL). In particular, the RIS is exploited to significantly enhance the efficiency of both the DL and UL transmission. Our objective is to enhance the minimum throughput among all ground users by jointly optimizing the horizontal location of UAVs, the transmit power of users, transmission time allocation, and passive beamforming vectors at the RIS. To address this problem, we present an alternating optimizationbased algorithm with low complexity to decompose the problem into four subproblems and solve them sequentially. In particular, we derive a lower bound of the composite channel gain to tighten the constraints and employ successive convex approximation (SCA) to optimize the horizontal location of the UAV. The transmit power closed-form optimum solutions are then obtained, and the problem of time allocation is reformulated as a linear programming problem. Finally, we optimize the passive beamforming vectors by adopting semi-definite relaxation (SDR). The effectiveness of the algorithm is supported by numerical results, which also demonstrate that the RIS-assisted UAV-enabled WPCN outperforms the traditional WPCN in terms of the minimum throughput.INDEX TERMS Wireless powered communication network (WPCN), unmanned aerial vehicle (UAV), reconfigurable intelligent surface (RIS), optimal placement, resource allocation

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“…The main pioneering contributions were made by N. Tesla who invented and demonstrated power transfer systems (1888-1890) using electric field and even more important, resonant inductive coupling in near zones [1,2]. The later operating principle is being widely used at present time, eg it is deployed in Qi power transfer systems, passive RFID tags and contactless smart cards.…”

Section: Introductionmentioning

confidence: 99%

Technological inductive power transfer systems

Madzharov

Nemkov

2017

Journal of Electrical Engineering

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Inductive power transfer is a very fast expanding technology with multiple design principles and practical implementations ranging from charging phones and computers to bionic systems, car chargers and continuous power transfer in technological lines. Only a group of devices working in near magnetic field is considered. This article is devoted to overview of different inductive power transfer (IPT) devices. The review of literature in this area showed that industrial IPT are not much discussed and examined. The authors have experience in design and implementation of several types of IPTs belonging to wireless automotive chargers and to industrial application group. Main attention in the article is paid to principles and design of technological IPTs K e y w o r d s: inductive power transfer, technological IPT, magnetic coupling, magnetic field lines, matching

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Wireless Power Transmission: A survey

Cited by 8 publications

References 41 publications

Single-Wire Electric-Field Coupling Power Transmission Using Nonlinear Parity-Time-Symmetric Model with Coupled-Mode Theory

Single-Wire Electric-Field Coupling Power Transmission Using Nonlinear Parity-Time-Symmetric Model with Coupled-Mode Theory

Throughput Maximization for RIS-Assisted UAV-Enabled WPCN

Technological inductive power transfer systems

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