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Wireless Power Transfer Technology for IoTs and Sensor-Enabled Devices
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Wireless Power Transfer Technology for IoTs and Sensor-Enabled Devices

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Fault Diagnosis & Sensors".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 17637

Special Issue Editors

Prof. Dr. Minghai Liu

E-Mail Website
Guest Editor
School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: wireless power transfer; advanced electrical materials; high-frequency power converter
Dr. Cancan Rong

E-Mail Website
Guest Editor
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221008, China
Interests: wireless power transfer; low-frequency metamaterial
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As the sensory nerve terminals of the Energy Internet, intelligent wireless sensors are of great significance to the construction of intelligent Internet of Things (IoT) systems and the promotion of digital transformation of the power grid. In addition, sensor-enabled devices, such as implantable and wearable medical devices, flexible sensors and electronics, and varied monitoring equipment, are widely used in daily life and industry. In general, sensors are powered by batteries. However, sensors can only operate for a short time due to limited energy storage, which can heavily hinder their wide-scale deployment. As an epoch-making approach to energy supply, wireless power transfer (WPT) technology achieves energy migration without a wire. This technology has created a revolutionary paradigm for charging most electrical equipment, such as electric vehicles, cell phones, and drones. In recent years, this technology has been studied extensively and presented many huge advantages over wired power transfer. Based on these, WPT technology for the sensor also becomes a research hotspot and provides a very promising approach for charging sensors with important research meanings. This Special Issue mainly aims at wireless power transfer technology for IoTs and sensor-enabled devices. However, the topic of papers is not limited to this scope. Research on the analysis and application of wireless power transfer technology is also welcomed.

Prof. Dr. Minghai Liu
Dr. Cancan Rong
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. Sensors 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 2600 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.

Published Papers (2 papers)

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Research

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13 pages, 3744 KiB  
Article
Analysis and Design of Single-Ended Resonant Converter for Wireless Power Transfer Systems
by Qiqi Li, Shanxu Duan and Han Fu
Sensors 2022, 22(15), 5617; https://doi.org/10.3390/s22155617 - 27 Jul 2022
Cited by 3 | Viewed by 1314
Abstract
Single-ended resonant converters such as Class-E inverters have been widely considered as a potential topology for small- and medium-power wireless power transfer (WPT) applications, which feature compact circuits, low switching losses, and cost benefits, as they only use a low-side switch with a [...] Read more.
Single-ended resonant converters such as Class-E inverters have been widely considered as a potential topology for small- and medium-power wireless power transfer (WPT) applications, which feature compact circuits, low switching losses, and cost benefits, as they only use a low-side switch with a simple gate driver. However, there remains a practical challenge in the design of voltage stress, efficiency, and power density. In this paper, a single-ended resonant converter with a primary parallel resonant-matching network is investigated to absorb the bulky input-choke inductors of the Class-E inverters into the coil inductance. The analytical expressions for all the converter parameters are derived based on time-domain resonant waveforms, including: (1) analysis of critical zero-voltage switching (ZVS) conditions and (2) power transfer capabilities under the given maximum switch voltage stress. Furthermore, this paper elaborates on the design methodology of the proposed single-ended resonant converters, and an optimal operating point is chosen to ensure soft-switching operation and rated power. Finally, the accuracy of the proposed model is verified by simulation and experimental results. Full article
(This article belongs to the Special Issue Wireless Power Transfer Technology for IoTs and Sensor-Enabled Devices)
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Review

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52 pages, 647 KiB  
Review
Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases
by Jarne Van Mulders, Daan Delabie, Cédric Lecluyse, Chesney Buyle, Gilles Callebaut, Liesbet Van der Perre and Lieven De Strycker
Sensors 2022, 22(15), 5573; https://doi.org/10.3390/s22155573 - 26 Jul 2022
Cited by 39 | Viewed by 15623
Abstract
Wireless power transfer provides a most convenient solution to charge devices remotely and without contacts. R&D has advanced the capabilities, variety, and maturity of solutions greatly in recent years. This survey provides a comprehensive overview of the state of the art on different [...] Read more.
Wireless power transfer provides a most convenient solution to charge devices remotely and without contacts. R&D has advanced the capabilities, variety, and maturity of solutions greatly in recent years. This survey provides a comprehensive overview of the state of the art on different technological concepts, including electromagnetic coupled and uncoupled systems and acoustic technologies. Solutions to transfer mW to MW of power, over distances ranging from millimeters to kilometers, and exploiting wave concepts from kHz to THz, are covered. It is an attractive charging option for many existing applications and moreover opens new opportunities. Various technologies are proposed to provide wireless power to these devices. The main challenges reside in the efficiency and range of the transfer. We highlight innovation in beamforming and UV-assisted approaches. Of particular interest for designers is the discussion of implementation and operational aspects, standards, and safety relating to regulations. A high-level catalog of potential applications maps these to adequate technological options for wireless power transfer. Full article
(This article belongs to the Special Issue Wireless Power Transfer Technology for IoTs and Sensor-Enabled Devices)
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