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WEVJ
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On-Board and Off-Board Power Electronics for EVs
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On-Board and Off-Board Power Electronics for EVs

A special issue of World Electric Vehicle Journal (ISSN 2032-6653).

Deadline for manuscript submissions: closed (15 September 2022) | Viewed by 11092

Special Issue Editors

Prof. Dr. Gabriele Grandi

E-Mail Website
Guest Editor
Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy
Interests: multilevel and multiphase converters; photovoltaic generation systems; power conditioning systems
Special Issues, Collections and Topics in MDPI journals
Dr. Riccardo Mandrioli

E-Mail Website
Guest Editor
Department of Electrical, Electronic, and Information Engineering, University of Bologna, Bologna, Italy
Interests: power electronics; power converters; electric vehicles; renewables; pulse-width-modulation; harmonic pollution
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Guest Editors invite submissions for a Special Issue of the MDPI World Electric Vehicle Journal (WEVJ) entitled "On-board and off-board power electronics for EVs."

Electric vehicles (EVs) are widely recognized as one of the key players in the green shift toward a less carbon-dependent industry and society. When it comes to EV technology, power electronics play a central role in multiple vehicle areas. Offboard systems like fast chargers, electric vehicle supply equipment (EVSE) active front-end, and stationary storage are characterized by plenty of power converters with multiple different characteristics, topologies, and ratings. Onboard power electronics are involved in a wide range of applications, ranging from a battery management system (BMS) to a smart traction inverter, including AC charging systems and auxiliary onboard electrical systems.

This Special Issue aims to consolidate knowledge of cutting-edge emerging technologies for power electronics for EV applications. Hence, scholars, academic scientists, researchers, Ph.D. students, and professional groups are invited to submit original contributions.

Prof. Dr. Gabriele Grandi
Mr. Riccardo Mandrioli
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. World Electric Vehicle Journal is an international peer-reviewed open access monthly 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 1400 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 for battery management systems (BMSs) and storage devices
  • Static transformers and smart transformers for electric vehicle supply equipment (EVSE), high power active front end
  • High-frequency isolated power converters like (but not limited to): resonant, dual active bridge, quad-active bridge, and multi-active bridge
  • Modular power converters for highly integrated low-cost charging systems
  • Advancements in on-board and off-board charges for both AC and DC charging
  • Wide-bandgap semiconductor devices (Sic, GaN) for automotive applications
  • Advancements in wireless power transfer (WPT) charging technology for EVs
  • Power electronic for hybrid/mixed battery packs, including supercapacitors, fuel cells, and second-life batteries
  • Smart battery pack for cell monitoring and live identification of the state of charge (SoC) and state of health (SoH) levels
  • Multiphase (>3) traction inverters and drives
  • Traction power electronic reconfiguration for EV AC charging
  • Power converters for achieving vehicle to grid (V2G), vehicle for grid (V4G), vehicle to home (V2H), vehicle to building (V2B), vehicle to vehicle (V2V), and vehicle to anything (V2X) in general

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (3 papers)

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Research

15 pages, 5359 KiB  
Article
Dual-Source Bidirectional Quasi-Z-Source Inverter Development for Off-Road Electric Vehicles
by Daouda Mande, João Pedro F. Trovão, Minh C. Ta and Thang Van Do
World Electr. Veh. J. 2022, 13(9), 174; https://doi.org/10.3390/wevj13090174 - 17 Sep 2022
Cited by 4 | Viewed by 2347
Abstract
In this paper, a battery pack and a supercapacitor bank hybrid energy storage system (HESS) with a new control configuration is proposed for electric vehicles (EVs). A bidirectional quasi-Z-source inverter (Bq-ZSI) and a bidirectional DC-DC converter are used in the powertrain of the [...] Read more.
In this paper, a battery pack and a supercapacitor bank hybrid energy storage system (HESS) with a new control configuration is proposed for electric vehicles (EVs). A bidirectional quasi-Z-source inverter (Bq-ZSI) and a bidirectional DC-DC converter are used in the powertrain of the EV. The scheme of the control for the proposed HESS Bq-ZSI using finite control set model predictive control (FCS-MPC) is first deduced to enhance the dynamic performance. With the idea of managing battery degradation mitigation, the fractional-order PI (FOPI) controller is then applied and associated with a filtering technique. The Opal-RT-based real-time simulation is next executed to verify the performance and effectiveness of the proposed HESS control strategy. As a result, the proposed HESS Bq-ZSI with this control scheme provides a quick response to the mechanical load and stable DC link voltage under the studied driving cycle. Moreover, the comparative results also show that the proposed HESS Bq-ZSI equipped with the new control configuration enables the reduction of the root-mean-square value, the mean value, and the standard deviation by 57%, 59%, and 27%, respectively, of the battery current compared to the battery-based inverter. Thus, the proposed HESS Bq-ZSI using these types of controllers can help to improve the EV system performance. Full article
(This article belongs to the Special Issue On-Board and Off-Board Power Electronics for EVs)
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19 pages, 6517 KiB  
Article
Catenary-Powered Electric Traction Network Modeling: A Data-Driven Analysis for Trolleybus System Simulation
by Rudolf Francesco Paternost, Riccardo Mandrioli, Riccardo Barbone, Mattia Ricco, Vincenzo Cirimele and Gabriele Grandi
World Electr. Veh. J. 2022, 13(9), 169; https://doi.org/10.3390/wevj13090169 - 13 Sep 2022
Cited by 6 | Viewed by 2987
Abstract
In the context of smart cities, direct current overhead contact lines, usually adopted to power urban transportation systems such as trolleybuses, tramways, metros, and railways, can serve as a backbone to connect different modern emerging technologies. Among these, in-motion charging (IMC) trolleybuses with [...] Read more.
In the context of smart cities, direct current overhead contact lines, usually adopted to power urban transportation systems such as trolleybuses, tramways, metros, and railways, can serve as a backbone to connect different modern emerging technologies. Among these, in-motion charging (IMC) trolleybuses with on-board batteries are expected to be very impactful on the DC network’s power flow and may require specific voltage and current control. These factors motivate the development of a simulation tool able to emulate these devices’ absorption and their effect on the supply infrastructure. The main innovative value of the work is to improve a simulation model of a trolleybus grid through a data-driven approach by using measurements of voltage and current output from a traction substation. The measurements are essential for understanding the behavior of vehicle weight variation throughout the day. Thanks to this information, a characterization of the current draw by conventional trolleybuses and IMC trolleybuses is then provided for each trolleybus route in a specific power section of the Bologna trolleybus system. By integrating the variation in vehicle weight within the model, a simulation of a possible daily operation of a trolleybus feeding section has been performed, obtaining a 7% error between the daily energy calculated from the simulation and that obtained through measurements. This analysis demonstrates the feasibility of the adopted simulation tool, which can also be used to evaluate additional hypothetical trolleybus operation scenarios. One of these possible scenarios considers IMC vehicles, and it is also evaluated in this paper. Full article
(This article belongs to the Special Issue On-Board and Off-Board Power Electronics for EVs)
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20 pages, 2160 KiB  
Article
LLC DC-DC Converter Performances Improvement for Bidirectional Electric Vehicle Charger Application
by Houssein Al Attar, Mohamed Assaad Hamida, Malek Ghanes and Miassa Taleb
World Electr. Veh. J. 2022, 13(1), 2; https://doi.org/10.3390/wevj13010002 - 23 Dec 2021
Cited by 13 | Viewed by 4328
Abstract
Electric Vehicle (EV) bidirectional charger technology is growing in importance. It defines the fact of returning the electricity stored in the batteries of EV to Grid (V2G), to Home (V2H), to Load (V2L), or in one word V2X mode. The EV onboard charger [...] Read more.
Electric Vehicle (EV) bidirectional charger technology is growing in importance. It defines the fact of returning the electricity stored in the batteries of EV to Grid (V2G), to Home (V2H), to Load (V2L), or in one word V2X mode. The EV onboard charger is divided into two parts: AC-DC and DC-DC converters. The isolated bidirectional DC-DC LLC resonant converter is used to improve the charger efficiency within both battery power and voltage ranges. It is controlled by varying the switching frequency based on a small signal modeling approach using the gain transfer function inversion method. The dimensions of the DC-DC LLC converter directly affect the charger cost. Moreover, they cause an important control frequency saturation zone, especially in V2X mode, where the switching frequency is out of the feasibility zone. The new challenge in this paper is to design an optimization strategy to minimize the LLC converter cost and improve the control frequency feasibility zone, for a wide variation of battery voltage and converter power, in the charging (G2V) and discharging (V2X) modes simultaneously. For our best knowledge, this optimization problem, in the case of a bidirectional (G2V and V2X) charger, is not yet considered in the literature. An optimal design that considers the control stability equations in the optimization algorithm is elaborated. The obtained results show a significant converter cost decrease and important expansion of control frequency feasibility zones. A comparative study between initial and optimized values, in G2V and V2X modes, is generated according to the converter efficiency. Full article
(This article belongs to the Special Issue On-Board and Off-Board Power Electronics for EVs)
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