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Electronics
Special Issues
Wireless Power Transfer and Its Applications
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Wireless Power Transfer and Its Applications

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Industrial Electronics".

Deadline for manuscript submissions: closed (1 December 2021) | Viewed by 13695

Special Issue Editors

Dr. Yong Li

E-Mail Website
Guest Editor
School of Electrical Engineering, Southwest Jiaotong University, West Section, High-Tech Zone, Chengdu 611756, China
Interests: wireless power transfer; energy harvesting for sensors; power electronics; electric vehicles
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Ruikun Mai

E-Mail Website1 Website2
Guest Editor
School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Interests: wireless power transfer; power electronics; transportation electrification
Special Issues, Collections and Topics in MDPI journals
Dr. Jiefeng Hu

E-Mail Website
Guest Editor
School of Engineering, Information Technology and Physical Sciences, Federation University Australia, Mount Helen, VIC 3353, Australia
Interests: sustainable energy systems & power electronics (wind turbine systems, solar photovoltaic (PV) systems, grid integration of renewable energy sources); microgrids & smart grid technologies; electric drives & electric vehicle technologies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, wireless power transfer has drawn much attention due to its convenience, cleanness, and safety. This technology has been successfully applied to medical implants, mobile phones, electric vehicles, railway applications, etc. In the next decade, new technologies in stationary/dynamic and bi-directional wireless power transfer (WPT) will revolutionize the energy charging and power supply industry. To promote the excellence of research and practical applications in this topic, this Special Issue, entitled “Wireless Power Transfer and Its Applications”, will include articles that address state-of-the-art technologies and new developments for wireless power transfer, including, but not limited to, compensation circuits, coupler design, soft-switching techniques, control strategies, foreign objective detections, etc. In addition, articles which discuss the applications of WPT, from a few milliwatts to several hundred kilowatts, would be of particular interest.

We invite original manuscripts presenting recent advances in this area, including, but not limited to, the following topics:

  • Wireless charging for electric vehicles, railway applications, and automatic guided vehicles;
  • Wireless chargers for portable electronic devices;
  • Wireless power transfer for unmanned aerial vehicles;
  • Wireless power transfer for biomedical implant devices;
  • Wireless power supply for the Internet of things (IoTs) and sensors;
  • Dynamic wireless power transfer;
  • Compensation circuit topology for stationary/dynamic wireless power transfer;
  • Magnetic coupler design for stationary/dynamic wireless power transfer;
  • Advanced control for wireless power transfer;
  • Power control of bi-directional wireless power transfer;
  • High-power-density wireless power transfer;
  • Wide-range soft-switching technique for wireless power transfer;
  • Ultrasonic transducer modeling and analysis;
  • Foreign objective detection in wireless power transfer.

 

Assoc. Prof. Dr. Yong Li
Prof. Dr. Ruikun Mai
Assoc. Prof. Dr. Jiefeng Hu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • wireless power transfer
  • inductive power transfer
  • contactless power transfer
  • wireless charging
  • magnetic resonance
  • power electronics
  • low-power electronic device charging
  • high-power wireless charging

Published Papers (5 papers)

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Research

17 pages, 607 KiB  
Article
Performance Tradeoff Analysis of Hybrid Signaling SWIPT Systems with Nonlinear Power Amplifiers
by Linlin Chen, Xiaofang Wu, Xin Wang, Wen Qi, Xuemin Hong, Jianghong Shi, Jie Hu and Kun Yang
Electronics 2021, 10(11), 1364; https://0-doi-org.brum.beds.ac.uk/10.3390/electronics10111364 - 07 Jun 2021
Cited by 2 | Viewed by 2028
Abstract
Simultaneous wireless information and power transfer (SWIPT) is a promising technology to achieve wide-area energy transfer by sharing the same radio frequency (RF) signal and infrastructure of legacy wireless communication systems. To enlarge the effective range of energy transfer in practice, it is [...] Read more.
Simultaneous wireless information and power transfer (SWIPT) is a promising technology to achieve wide-area energy transfer by sharing the same radio frequency (RF) signal and infrastructure of legacy wireless communication systems. To enlarge the effective range of energy transfer in practice, it is desirable to have a hybrid signaling SWIPT scheme, which combines a high-power multitone energy signal with a low-power broadband information signal. This paper presents a systematic study on the performance of hybrid signaling SWIPT systems with memoryless nonlinear transmitter power amplifiers (PAs). Using PA efficiency and signal-to-noise-and-distortion ratio (SNDR) as the metrics to measure the efficiency of energy transfer and information transmission, respectively, we derive the tradeoff between these two metrics for two PA classes, two nonlinear PA models, and two SNDR definitions. Our results reveal insights into the fundamental performance tradeoff inherent in SWIPT systems using hybrid signaling schemes. Full article
(This article belongs to the Special Issue Wireless Power Transfer and Its Applications)
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16 pages, 8431 KiB  
Article
A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway Applications
by Jianying Liang, Donghua Wu and Jin Yu
Electronics 2021, 10(2), 153; https://0-doi-org.brum.beds.ac.uk/10.3390/electronics10020153 - 12 Jan 2021
Cited by 8 | Viewed by 3010
Abstract
Capacitive power transfer (CPT) is a promising method to solve the problems caused by the traditional Pantograph-catenary contact power supply for railway applications. In contrast, the CPT system suffers a broken risk because of the small coupling capacitor. This paper has analyzed the [...] Read more.
Capacitive power transfer (CPT) is a promising method to solve the problems caused by the traditional Pantograph-catenary contact power supply for railway applications. In contrast, the CPT system suffers a broken risk because of the small coupling capacitor. This paper has analyzed the CPT coupler’s voltage distributions for dynamic CPT systems when high power is required in real railway applications. The triangle relationship among the coupler voltages is derived. The circuit of the CPT system to accolated the coupler voltage is analyzed. Then, the compensation parameters are given. With the adopted LCLC-CL topology, the design process is presented by considering the coupler voltages. An experimental setup is conducted to validate the proposed design method. The experimental results show that the system can achieve 3 kW output power with 92.46% DC-DC efficiency and the voltage distribution aggress well with the designed values. Full article
(This article belongs to the Special Issue Wireless Power Transfer and Its Applications)
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18 pages, 7770 KiB  
Article
An Optimization Method for Simultaneous Wireless Power and Data Transfer Systems
by Peiyue Wang, Yue Sun, Xiaofei Li and Zhaohong Ye
Electronics 2020, 9(12), 2073; https://0-doi-org.brum.beds.ac.uk/10.3390/electronics9122073 - 05 Dec 2020
Cited by 5 | Viewed by 2099
Abstract
Simultaneous wireless power and data transfer (SWPDT) technology is usually needed in wireless power transfer (WPT) systems. In this paper, to achieve the efficient and stable SWPDT, the signal to noise rate (SNR) is first optimized through the analysis of data transmission gain [...] Read more.
Simultaneous wireless power and data transfer (SWPDT) technology is usually needed in wireless power transfer (WPT) systems. In this paper, to achieve the efficient and stable SWPDT, the signal to noise rate (SNR) is first optimized through the analysis of data transmission gain and the interference of power transfer on data transfer. In order to reduce the interference of power channel to data transfer channel, the compensation topology of double-sided LCC and the band-stop networks are used. To solve the problem of SNR limitation, the coupling relationships between each circuit are taken into consideration and a matching method of resonance parameters to improve the SNR is presented. Based on the relationship between SNR and the parameters of data transfer channel, an optimization design method focused on parameters of data transfer channel for improving the SNR is presented. Finally, the feasibility and the correctness of the parameter design method proposed in this paper is verified by simulation and experiment. Full article
(This article belongs to the Special Issue Wireless Power Transfer and Its Applications)
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14 pages, 11409 KiB  
Article
Design and Optimization of Coupling Coils for Bidirectional Wireless Charging System of Unmanned Aerial Vehicle
by Yang Li, Xin Ni, Jiaming Liu, Rui Wang, Jingnan Ma, Yujie Zhai and Yuepeng Huang
Electronics 2020, 9(11), 1964; https://0-doi-org.brum.beds.ac.uk/10.3390/electronics9111964 - 20 Nov 2020
Cited by 8 | Viewed by 2130
Abstract
To solve the battery power supply problem with wireless sensor networks (WSNs), a novel bidirectional wireless charging system is proposed, in which an unmanned aerial vehicle (UAV) can fly to the WSNs to charge sensors through high-frequency wireless power transfer (WPT) and also [...] Read more.
To solve the battery power supply problem with wireless sensor networks (WSNs), a novel bidirectional wireless charging system is proposed, in which an unmanned aerial vehicle (UAV) can fly to the WSNs to charge sensors through high-frequency wireless power transfer (WPT) and also obtain energy for its own battery in the same way. To improve the performance of the UAV bidirectional wireless charging system, a lightweight design is adopted to increase its loading capacity and working time. Moreover, the radii and the numbers of turns and pitches of coupling coils were designed and optimized on the basis of simulations and experiments. Experimental results show that the weight of optimized UAV coil was reduced by 34.45%. The power transfer efficiency (PTE) of the UAV coil to sensor coil increased from 60.2% to 74.4% at a transmission distance of 15 cm, while that of the ground transmitting coil to UAV coil increased from 65.2% to 90.1% at 10 cm. Full article
(This article belongs to the Special Issue Wireless Power Transfer and Its Applications)
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14 pages, 5206 KiB  
Article
Directional Characteristics of Wireless Power Transfer via Coupled Magnetic Resonance
by Yang Li, Jiaming Liu, Qingxin Yang, Xin Ni, Yujie Zhai and Zhigang Lou
Electronics 2020, 9(11), 1910; https://0-doi-org.brum.beds.ac.uk/10.3390/electronics9111910 - 13 Nov 2020
Cited by 10 | Viewed by 3250
Abstract
The wireless power transfer (WPT) system via coupled magnetic resonance (CMR) is an efficient and practical power transmission technology that can realize medium- and long-distance power transmission. People’s requirements for the flexibility of charging equipment are becoming increasingly prominent. How to get rid [...] Read more.
The wireless power transfer (WPT) system via coupled magnetic resonance (CMR) is an efficient and practical power transmission technology that can realize medium- and long-distance power transmission. People’s requirements for the flexibility of charging equipment are becoming increasingly prominent. How to get rid of the “flitch plate type” wireless charging method and enhance the anti-offset performance is the main research direction. Directional characteristics of the system can affect the load receive power and system efficiency in practical applications. In this paper, the power and efficiency of the WPT system via CMR were analyzed according to the principle of near-field strong coupling at first. The expression of the mutual inductance between the transmitting and the receiving coils under angular offset was derived from the perspective of the mathematical model, and the influences of angular deviation were analyzed. Second, simulation models were established under different distance between coils, different coil types, and different coil radius ratios in symmetrical and asymmetrical systems. Afterwards, the directional law was obtained, providing reference for the optimal design of coupling coils. Finally, an experimental system was built, and directional characteristic experiments were carried out under different conditions. Experimental results were consistent with simulation results, which verified the theoretical analysis. Full article
(This article belongs to the Special Issue Wireless Power Transfer and Its Applications)
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