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Energies
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Advances in Electric Vehicle Wireless Charging Systems
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Advances in Electric Vehicle Wireless Charging Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "E: Electric Vehicles".

Deadline for manuscript submissions: closed (15 July 2022) | Viewed by 5637

Special Issue Editors

Prof. Dr. Zhihui Wang

E-Mail Website
Guest Editor
School of Automation, Chongqing University, Chongqing 400044, China
Interests: wireless power transfer; electric vehicle charging; power electronics modeling; circuit nonlinear analysis
Dr. Xiaofei Li

E-Mail Website
Guest Editor
School of Automation, Chongqing University, Chongqing 400044, China
Interests: wireless power transfer; power electronics

Special Issue Information

Dear Colleagues,

The Guest Editor would like to invite you to submit your research achievements to a Special Issue of Energies, titled “Advances in Electric Vehicle Wireless Charging Systems”. Wireless power transfer (WPT) technology has been undergoing rapid development in recent decades. Because it can provide electronic devices with a more flexible and convenient power supply, it has found many applications in EV charging, implantable biomedical device charging, consumer electronics wireless charging, etc. This Special Issue will focus on the most recent achievements in EV charging. Topics of interest for publication include, but are not limited to, the following:

  • Wireless charging for electronic vehicles;
  • Wireless power transfer for industrial vehicles, such as automatic guided vehicles;
  • Dynamic wireless power transfer (DWPT);
  • Compensation circuit topology for wireless power transfer;
  • Magnetic coupler design for wireless power transfer;
  • High-frequency power converters;
  • Capacitive coupler design for wireless power transfer;
  • Soft-switching technique in resonant circuit;
  • Safety issues in wireless power transfer;
  • Improvement of power transfer efficiency.

Prof. Dr. Zhihui Wang
Dr. Xiaofei Li
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. Energies 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.

Keywords

  • power electronics
  • wireless power transfer
  • wireless charging
  • control methods
  • magnetic coupling

Published Papers (3 papers)

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Research

15 pages, 5319 KiB  
Article
Improved Control Strategy for Zero-Crossing Distortion Elimination in Totem-Pole PFC Converter with Coupled Inductor
by Han Fu, Shanxu Duan, Yong Li and Qiqi Li
Energies 2022, 15(15), 5437; https://0-doi-org.brum.beds.ac.uk/10.3390/en15155437 - 27 Jul 2022
Cited by 1 | Viewed by 2091
Abstract
Coupled inductors can effectively optimize the THD, loss, current ripple, and power density of multiphase interleaved totem-pole PFC converters. However, a coupled inductor will also worsen the zero-crossing distortion process. This paper first introduces the working principle of the interleaved totem-pole PFC converter [...] Read more.
Coupled inductors can effectively optimize the THD, loss, current ripple, and power density of multiphase interleaved totem-pole PFC converters. However, a coupled inductor will also worsen the zero-crossing distortion process. This paper first introduces the working principle of the interleaved totem-pole PFC converter with a coupled inductor based on a detailed analysis of modes, and then analyzes the influence on the zero-crossing process caused by the coupled inductor. To eliminate the zero-crossing distortion caused by the coupled inductor, an improved control strategy and its digital realization method of the totem-pole PFC converter is presented through the system model. Finally, the validity and correctness of the proposed circuit and control are verified in the 7.7 kW interleaved totem-pole PFC converter. Full article
(This article belongs to the Special Issue Advances in Electric Vehicle Wireless Charging Systems)
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16 pages, 6654 KiB  
Article
Comprehensive Analysis for Electromagnetic Shielding Method Based on Mesh Aluminium Plate for Electric Vehicle Wireless Charging Systems
by Ke Wang, Zhiping Zuo, Lin Sang and Xiaoqiang Zhu
Energies 2022, 15(4), 1546; https://0-doi-org.brum.beds.ac.uk/10.3390/en15041546 - 19 Feb 2022
Cited by 4 | Viewed by 1779
Abstract
As an epoch-making technique, wireless power transfer (WPT) technology has been used in electric vehicle charging devices in recent years, but the electromagnetic leakage problem has always plagued numerous researchers. The traditional wireless charging systems use a solid metal aluminium plate to shield [...] Read more.
As an epoch-making technique, wireless power transfer (WPT) technology has been used in electric vehicle charging devices in recent years, but the electromagnetic leakage problem has always plagued numerous researchers. The traditional wireless charging systems use a solid metal aluminium plate to shield electromagnetic leakage generally. Although it has a good shielding performance, it will seriously reduce the transmission efficiency of wireless charging systems. In this paper, an aluminium plate with a series of mesh holes of different sizes is proposed to weaken the eddy current in partial areas on the plane. Therefore, without changing the maximum magnetic induction intensity of the shielded magnetic field, the influence of the aluminium plate on the electrical parameters of the wireless power transfer system is minimized, and the transmission efficiency of the system is improved. The Ansys Maxwell software has been adopted to simulate the transfer and shielding performance. Finally, the experimental results have verified that the optimized mesh aluminium plate can reduce the interference to the transmission performance of electric vehicle wireless charging system and further improve the electromagnetic environment of the system effectively at the same time. Full article
(This article belongs to the Special Issue Advances in Electric Vehicle Wireless Charging Systems)
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17 pages, 2416 KiB  
Article
A Design Methodology for EV-WPT Systems to Resonate at Arbitrary Given Bands
by Yong Yin, Yuhua Xiao, Chengliang Wang, Qingsheng Yang, Yahui Jia and Zhijuan Liao
Energies 2022, 15(1), 213; https://0-doi-org.brum.beds.ac.uk/10.3390/en15010213 - 29 Dec 2021
Cited by 1 | Viewed by 1093
Abstract
Due to the effects of splitting frequency and cross coupling, the resonant frequency of the WPT system usually deviates from the given frequency band, and the system operating at the given frequency band suffers a very low output power. Ensuring that electric vehicle [...] Read more.
Due to the effects of splitting frequency and cross coupling, the resonant frequency of the WPT system usually deviates from the given frequency band, and the system operating at the given frequency band suffers a very low output power. Ensuring that electric vehicle wireless power transfer (EV-WPT) systems operate at a resonant state is the prerequisite for efficient energy transfer. For this purpose, a novel design method by manipulating the eigenstate parameters is proposed in this paper. The proposed system can make a EV-WPT system with arbitrary coil successfully to resonate at any given bands, not just a single band. Therefore, the method designed in this article cannot only eliminate the problem of low power caused by frequency deviation, but also realize the application requirements of multiple frequency bands. Firstly, this article establishes an accurate state space model of an n-coil fully coupled EV-WPT system, and after that, the analytical current response on each circuit is derived. Based on that, a detailed frequency spectrum analysis is presented, along with several essential spectrum parameters’ derivations, including center frequencies and bandwidths. Then, with the center frequency and bandwidth as the design indexes, a novel methodology of designing to make EV-WPT systems achieve resonant-state at arbitrary given bands is derived. Finally, simulation and experimental verification are carried out. Simulation and experimental results show that whether it is a single-band or multi-band system, the accuracy of the value under designed resonant frequency is less than 0.01, which can effectively eliminate the frequency deviation phenomenon and obtain the maximum power output at the given frequency band. Full article
(This article belongs to the Special Issue Advances in Electric Vehicle Wireless Charging Systems)
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