Article
Engineering, Electrical & Electronic
Samir Chowdhury, Md Tawhid Bin Tarek, Md Ehsanul Haque, Yilmaz Sozer
Summary: This article proposes a two-layer overlapping winding-based three-phase wireless vehicle charging system that offers higher coupling and balance inductance matrices compared to conventional systems, resulting in enhanced efficiency and coupling.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Review
Energy & Fuels
Emrullah Aydin, Mehmet Timur Aydemir, Ahmet Aksoz, Mohamed El Baghdadi, Omar Hegazy
Summary: This paper provides a comprehensive review of the Wireless Power Transfer (WPT) technology in electric vehicle (EV) charging systems, focusing on the Inductive Power Transfer (IPT) method. The review covers the history, design considerations, control methods, and health issues of IPT systems, with discussions on key factors such as coil design, operating frequency selection, and efficiency values.
Article
Engineering, Electrical & Electronic
Jia Liu, Zhitao Liu, Wenjie Chen, Xuhui Sun, Hongye Su
Summary: In this paper, a new magnetic coupler array is proposed to implement dynamic wireless charging and reduce power pulsation. By adjusting the transmitter spacing and designing a larger receiver coil, power pulsation and null power phenomenon are successfully mitigated. Furthermore, a multilevel connected DC-DC converter is designed to regulate transfer power, and a passivity-based control method and current sharing compensator are developed.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Computer Science, Information Systems
Arman Fathollahi, Sayed Yaser Derakhshandeh, Ali Ghiasian, Mohammad A. S. Masoum
Summary: This paper presents a long-term stochastic scenario-based mathematical model for allocating and sizing dynamic wireless charging (DWC) infrastructures for electric vehicles (EVs), taking into account EV location-routing, power distribution system losses, and transportation network traffic. Simulation results show that using location-routing problem can save up to 45% of the total cost of the DWC system, and demonstrate the advantage of DWC technology in reducing the size of vehicle batteries.
Article
Energy & Fuels
Arman Fathollahi, Sayed Yaser Derakhshandeh, Ali Ghiasian, Mohammad Hassan Khooban
Summary: This study proposes a long-term mathematical model for locating and routing electric freight trucks and installing dynamic wireless charging infrastructure. By considering factors such as truck battery capacity, charging facility cost, electrical energy losses, and voltage deviation in the power distribution system, the model can effectively address the issues of conventional charging methods.
SUSTAINABLE ENERGY GRIDS & NETWORKS
(2022)
Article
Automation & Control Systems
Francesca Grazian, Thiago Batista Soeiro, Pavol Bauer
Summary: This article proposes a wireless charging system that efficiently charges electric vehicles (EVs) with either 400V or 800V batteries at the same power level. The system only uses passive semiconductor devices on board the EV and consists of two sets of series-compensated coupled coils and dedicated H-bridge converters. The power transfer efficiency of the system is compared to a conventional one-to-one coil system at a power level of 7.2 kW, resulting in dc-to-dc efficiencies of 97.11% and 97.52% for 400V and 800V voltage outputs, respectively. The functionality of the V/I-D converter is proven for both even and uneven misalignments of the coupled coils.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Computer Science, Information Systems
Wei Liu, Chao Hu, Lijuan Xiang
Summary: This study proposes a multimodal modulation scheme to consider various output characteristics and working conditions in wireless charging of electric vehicles. By controlling the impedance working conditions, optimal performance can be achieved and verified in experiments.
Article
Automation & Control Systems
Meng Xiong, Xuezhe Wei, Yonghua Huang, Zhichao Luo, Haifeng Dai
Summary: A novel flexible nanocrystalline core is proposed to replace the ferrite core in wireless power transfer for electric vehicles. Through improvement processes, the nanocrystalline core achieved excellent results in parameter measurements and loading tests.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
Ziwei Liang, Liyan Zhu, Yue Sun, Jie Li, Ruiyang Qin, Basu Arka, Daniel Costinett, Hua Bai
Summary: This letter proposes a multipurpose magnetic coupler-based charging solution that integrates bidirectional on-board charger (OBC), wireless power transfer (WPT), and an auxiliary power module (APM) to further enhance the system integration and convenience of the battery charging system for electric vehicles. The proposed solution highlights the integration of OBC, WPT, and APM in one unit, the magnetic integration using a multiwinding WPT pad, and the topological integration that saves multiple active and passive devices. The letter includes a description of the system topology, operation principles of individual charging modes, a novel magnetic coupler, and the design methodology. A prototype was constructed and different charging modes were tested to validate the proposed design.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Multidisciplinary Sciences
Ahmad Siroos, Mostafa Sedighizadeh, Ebrahim Afjei, Alireza Sheikhi Fini, Somayeh Yarkarami
Summary: The study focuses on the design and optimization of wireless power transfer systems for electric vehicles, introducing a novel approach to improve system efficiency and output performance. The effectiveness of this method is confirmed through experimental and simulation results.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Chen Xu, Yuan Zhuang, Chaoyun Song, Yi Huang, Jiafeng Zhou
Summary: This article presents an extensible wireless power transfer system based on magnetic resonance coupling. The proposed structure ensures high power transfer efficiency by confining magnetic flux lines near the receiver. Experimental results show high efficiency under different misalignment distances, and a single-feed Tx array is constructed to increase the charging area. These designs effectively mitigate heating concerns due to magnetic field leakage and are suitable candidates for dynamic WPT applications.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Article
Engineering, Electrical & Electronic
Na Fu, Junjun Deng, Zhenpo Wang, Deliang Chen
Summary: In this article, a triple-phase-shift (TPS) control strategy combined with a switch-controlled capacitor (SCC) is proposed for LCC-LCC compensated wireless power transfer (WPT) system to improve efficiency at wide output voltages. The mathematical model of the system is established, and the conditions for zero-voltage switching (ZVS) and load matching are described. The mechanism of TPS reducing system efficiency is revealed, and an SCC is employed to adjust the compensation capacitance and reduce the rectifier input current. Experimental results show that the proposed control technique achieves higher efficiency over traditional TPS.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Automation & Control Systems
Oliver Frendo, Nadine Gaertner, Heiner Stuckenschmidt
Summary: Smart charging involves assigning charging capacities between vehicles in limited infrastructures and can now be found in both commercial and open source solutions. This article introduces an open source package with a smart charging algorithm and presents implementation aspects and field test results showing its effectiveness. By scheduling vehicles for charging while ensuring fair share, the smart charging algorithm has demonstrated real-time applicability and scalability to large fleet sizes.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2021)
Article
Computer Science, Artificial Intelligence
Emrullah Aydin, M. Timur AydemIr
Summary: Wireless power transfer (WPT) technology is gaining attention as a cleaner, safer alternative for charging batteries, with hexagonal coils showing potential for mid-power applications like electric vehicle charging. A 1 kW WPT system with hexagonal coils was designed and validated with theoretical, simulation, and laboratory testing, achieving 85% DC-to-DC power efficiency across a 10 cm air gap. The study also analyzed misalignment performance, power output variation, and the effects of shielding on magnetic field exposure in EVs to ensure compliance with international health standards.
TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES
(2021)
Article
Engineering, Electrical & Electronic
Erdem Guemruekcue, Jonatan Ralf Axel Klemets, Jon Are Suul, Ferdinanda Ponci, Antonello Monti
Summary: This study introduces a decentralized management concept for urban charging hubs, where electric vehicles can access multiple charger clusters controlled by aggregators. The provided day ahead schedules and peak power limits of the aggregators can restrict energy supply. A suitable energy management concept is required to mitigate the impact on EV users. In the proposed approach, an electromobility operator allocates incoming EVs into charger clusters using a smart routing algorithm that optimizes cluster allocations and charging schedules. Real-time charging control is achieved through an optimization problem solved by each aggregator. The results demonstrate the effectiveness of the proposed concept in reducing deviations from schedules and violations of power limits, while decreasing unfulfilled charging demand and unscheduled discharge from EV batteries.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Energy & Fuels
Wahiba Yaici, Michela Longo
Summary: With environmental concerns and limited natural resources, there is a need for cleaner sources of energy in the transportation sector. This study examines the feasibility of implementing a nationwide network of compressed RNG refueling infrastructure to accommodate the conversion of long-haul, heavy-duty truck fleet from diesel to RNG. The study develops methods to predict fuelling requirements and conducts an economic analysis to estimate the impact of different variables on the final selling price of compressed RNG.
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2022)
Article
Energy & Fuels
Wahiba Yaici, Michela Longo
Summary: Considering the serious environmental problems occurring worldwide, especially climate change caused by CO2 emissions, it is crucial to find alternative and cleaner energy sources. This paper investigates the feasibility of developing a nationwide network of hydrogen refueling infrastructure and evaluates the competitiveness of hydrogen fuel in the trucking market through economic analysis.
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2022)
Article
Chemistry, Multidisciplinary
Farqad T. Najim, Hayder I. Mohammed, Hussein M. Taqi Al-Najjar, Lakshmi Thangavelu, Mustafa Z. Mahmoud, Jasim M. Mahdi, Mohammadreza Ebrahimnataj Tiji, Wahiba Yaici, Pouyan Talebizadehsardari
Summary: This research investigates the potential enhancement of circular fins on intensifying the PCM thermal response in a vertical triple-tube casing. The results reveal that changing the fin dimensions and distribution patterns can improve the charging rate, storage rate, and temperature distribution of the PCM, leading to better performance.
Article
Chemistry, Multidisciplinary
Hussein M. Taqi Al-Najjar, Jasim M. Mahdi, Dmitry Olegovich Bokov, Nidhal Ben Khedher, Naif Khalaf Alshammari, Maria Jade Catalan Opulencia, Moram A. Fagiry, Wahiba Yaici, Pouyan Talebizadehsardari
Summary: This study proposes an innovative technique for improving the melting duration in the photovoltaic/phase-change material (PV/PCM) system by introducing an exterior metal foam layer. Through the development of a mathematical model and validation through computational fluid dynamic (CFD) and experimental methods, it is confirmed that the inclusion of metal foam can reduce the PV cell temperature and improve the PCM melting duration. This research also demonstrates the effectiveness of metal foam under low solar radiation, low ambient temperatures, and high wind speeds.
Article
Energy & Fuels
Wahiba Yaici, Michela Longo
Summary: This study examines the feasibility of constructing a network of hydrogen refuelling stations for long-haul, heavy-duty trucks in Canada. Results show that hydrogen gas pipeline delivery is economically stable, while truck-delivered stations have the lowest investment cost.
Article
Computer Science, Information Systems
Diego Franceschini, Vincenzo Cirimele, Michela Longo
Summary: This paper assesses the impact of electric vehicle charging demand on the service areas of the Italian highway network. It proposes a methodology to forecast the future charging needs for each service area based on traffic data, considering both energy and power requirements during daily traffic peaks. The results show a significant impact, particularly in terms of power demand with peaks between two and three megawatts. The methodology developed is applicable for similar planning in other highway or suburban roadway contexts.
Article
Multidisciplinary Sciences
Seyed Mahdi Miraftabzadeh, Cristian Giovanni Colombo, Michela Longo, Federica Foiadelli
Summary: Climate change and global warming have led to increased research on renewable and green energy sources. This study focuses on solar panel technology, particularly in domestic neighborhoods, and proposes a framework using transfer learning to improve day-ahead PV power prediction accuracy in newly installed PV plants. Results show the effectiveness of the transferred LSTM model in accurately predicting PV power, with a significant improvement in mean square error (MSE) and weighted mean absolute percentage error (wMAPE) compared to the LSTM model using inadequate data.
Article
Energy & Fuels
Dario Pelosi, Michela Longo, Dario Zaninelli, Linda Barelli
Summary: A significant increase in fast-charging stations is crucial for the transition to electric vehicles. However, charging a battery pack at a higher C-rate accelerates its degradation. This paper proposes an innovative approach that considers the daily routine of an EV Li-ion battery based on a standard driving cycle, enabling the determination of the state of charge evolution for different charging C-rates. It demonstrates that fast-charging at 50 kW reduces battery lifespan by approximately 17% compared to charging in a 22 kW three-phase AC column.
Article
Construction & Building Technology
Cristian Giovanni Colombo, Alessandro Saldarini, Michela Longo, Wahiba Yaici, Fabio Borghetti, Morris Brenna
Summary: Decarbonization has become a key trend, but transportation remains a challenging sector to decarbonize, especially in developing countries. Obsolete and polluting vehicles discourage the use of public transport and increase emissions. This study evaluates the feasibility of using an electric minibus for long trips in Eritrea and proposes an environmentally sustainable solution for powering public services.
Article
Computer Science, Information Systems
Seyed Mahdi Miraftabzadeh, Michela Longo, Morris Brenna
Summary: The unpredictable nature of photovoltaic solar power generation due to changing weather conditions creates challenges for grid operators. This paper proposes a data-driven model that uses unsupervised learning algorithms to identify daily photovoltaic power production patterns. The model aims to extract typical patterns by transforming the high dimensional temporal features into a lower latent feature space. The results indicate that the identified patterns can improve forecasting models and optimize energy management systems.
Article
Computer Science, Information Systems
Fabio Borghetti, Michela Longo, Seyed Mahdi Miraftabzadeh, Gianluca Mizzoni, Guido Giudici
Summary: In this paper, a quantitative model is implemented to assess the feasibility of implementing a Vehicle-To-Grid (V2G) service by a company operating electric buses. The model calculates the energy that a vehicle within a depot can deliver back to the grid during peak demand periods based on the operational schedule. The paper also provides an economic evaluation of energy trading and estimates that V2G can supply about 7 to 10 MW of energy to the grid, serving approximately 2,300 to 3,300 households.
Article
Computer Science, Information Systems
Andrea Di Martino, Gauri Shankar Prasad, Federica Foiadelli, Michela Longo
Summary: The conversion of conventional bus fleets into full-electric fleets is becoming a focus for public transport operators worldwide due to environmental awareness and urbanization trends. However, an efficient electrification process remains a challenge for most operators. This paper proposes an E-Bus vehicle model to estimate actual energy consumption and investigates optimization strategies for bus fleet utilization and charging solutions.
Proceedings Paper
Construction & Building Technology
Dario Pelosi, Linda Barelli, Michela Longo, Dario Zaninelli
Summary: In order to mitigate climate change, a strong revolution in stationary renewable power production and the transport sector is necessary. It is predicted that over 34 million Battery Electric Vehicles (BEVs) and 13 million Plug-in Electric Vehicles (PHEVs) will be circulating in Europe by 2030. This will have a negative impact on distribution lines, especially in densely populated areas. The implementation of residential Micro-Grids (MGs), which include renewable production, local loads, and energy storage, offers a potential solution to enhance BEV/PHEV penetration without compromising grid stability.
SUSTAINABILITY IN ENERGY AND BUILDINGS 2022
(2023)
Review
Computer Science, Information Systems
Seyed Mahdi Miraftabzadeh, Cristian Giovanni Colombo, Michela Longo, Federica Foiadelli
Summary: As power systems evolve and become more complex with the integration of renewable energy sources, distributed generation, and electric vehicles, clustering algorithms such as K-means are becoming crucial tools for analyzing and optimizing these systems. This paper provides a comprehensive review of the application of K-means clustering and alternative methods in modern power systems, emphasizing the wide-ranging applications and the exponential growth in publications using clustering algorithms in this field. The study also explores the limitations and advantages of K-means and introduces alternative clustering algorithms that can be used in power system studies. This research highlights the importance for professionals to understand various clustering methods and incorporate the most suitable ones into their studies.
Article
Engineering, Electrical & Electronic
Vahid Akbari, Mohammad Naghashzadegan, Ramin Kouhikamali, Farhad Afsharpanah, Wahiba Yaici
Summary: In this study, the performance of 10 low Reynolds number airfoils on small wind turbines was evaluated through a multi-objective optimization study. The type of airfoil was found to have a significant impact on not only the aerodynamic performance but also the startup performance of the turbine.
