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)
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
Energy & Fuels
Song Li, Fuyao Yang, Yongzhang Huang, Haisen Zhao
Summary: This paper analyzes the application of square and circular planar spiral coils in wireless charging, discusses the impact of coupling structures on power transfer efficiency and voltage stability, studies the influence of coil shape, size, line spacing, and core structures on the coupling coefficient, and proposes comprehensive optimization schemes to improve misalignment tolerance.
Article
Automation & Control Systems
Javier A. Torres Bustos, Marcos E. Orchard, Miguel Torres-Torriti, Fernando Auat Cheein
Summary: Several countries are leading the effort of replacing internal combustion engines (ICE) in vehicles with electric ones in order to reduce dependence on oil and carbon emissions. However, the range of electric vehicles (EVs) is still lower compared to ICE vehicles, depending on the energy stored and its utilization rate. In this study, the authors propose a method to estimate the average power consumption of EVs using only localization information, achieving high accuracy without the need for extra sensors.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Review
Chemistry, Physical
Cancan Rong, Lihui Yan, Long Li, Yunhui Li, Minghai Liu
Summary: Wireless power transfer (WPT) is a technology that enables energy transmission without physical contact, utilizing magnetic and electric fields as soft media. Metamaterials offer a promising way for improving efficiency and reducing the flux density in WPT systems. This paper provides an overview of the current status and technical challenges of metamaterial-based WPT systems, including the basic principles of magnetic coupling resonant wireless power transfer (MCR-WPT), metamaterial design theory, and its application in WPT. The paper also reviews the metamaterial-based wireless energy transmission system from the perspectives of transmission efficiency, misalignment tolerance, and electromagnetic shielding, and summarizes the development trends and technical challenges of metamaterial-based WPT systems.
Article
Engineering, Electrical & Electronic
Na Fu, Junjun Deng, Zhenpo Wang, Wenbo Wang, Shuo Wang
Summary: An efficiency-oriented control strategy is proposed for LCC-LCC-compensated wireless power transfer (WPT) system to achieve zero-voltage-switching operation over a wide current regulation range. The strategy combines full-bridge and half-bridge modes, identifies ZVS boundaries, and introduces an optimization method to fit theoretical control trajectories into smooth curves. A 4.4-kW WPT prototype verifies the feasibility and validity of the proposed control strategy, achieving high system efficiency even at 20% rated power.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Energy & Fuels
Eiman ElGhanam, Mohamed Hassan, Ahmed Osman
Summary: This study proposes a DWPT EV charging system to provide energy for moving EVs at a rate of 308 Wh/km on a straight road, compensating for average energy consumption and allowing for additional energy storage in the vehicle battery. The system operates with an average power transfer efficiency of over 90% and has good lateral misalignment tolerance up to +/- 200 mm.
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
Engineering, Electrical & Electronic
Cun Wang, Pengfei Zheng, Jennifer Bauman
Summary: The auxiliary power module (APM) plays a crucial role in electric vehicles (EVs) by facilitating efficient power transfer from the traction battery to low-voltage electrical loads and the 12 V battery. With the continuous development of the EV industry, APM design faces challenges such as higher power ratings, higher voltage ranges, improved reliability, and increased power density, while maintaining efficient operation. However, there is a lack of comprehensive literature that reviews recent APM topologies based on these evolving requirements. This article addresses this research gap by comprehensively reviewing current APM topologies from both academia and industry, and exploring potential future trends for APM design and development.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Automation & Control Systems
Tsong-Shing Lee, Shyh-Jier Huang, Shuo-Huei Dai
Summary: This article proposes a contactless power transfer technology for rail-guided vehicles with considerations of power equalization and efficiency improvement. By designing a method for evenly distributing power and developing a tracking compensation technique, power output equalization and efficiency improvement are achieved. The experimental results of the hardware circuit show that the maximum efficiency of the system is 90.3%.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Energy & Fuels
Emanuel G. Marques, Andre M. S. Mendes, Marina Perdigao, Valter S. Costa
Summary: This paper proposes a methodology using fitting equations to extrapolate coupling profiles and minimize the required number of FEA simulation results. Specifically, a non-polarized circular coupler can be characterized using only six charging positions, while polarized couplers require 18 charging positions. Experimental validation shows that this method has good accuracy.
Article
Engineering, Electrical & Electronic
Xiaodong Qing, Yugang Su, Aiguo Patrick Hu, Xin Dai, Zhe Liu
Summary: This article proposes a dual-loop control CPT system to reduce the impact of coupling misalignment and load variation. The frequency tuning is achieved by tracking the input and output voltage, allowing for accurate tracking of the CV frequency and avoiding operation at other resonant frequencies. Experimental results show that the CPT system can operate in a load-independent CC/CV mode and control the output voltage/current within 2% error even with variations in load resistance and coupling misalignment.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Harish Karneddi, Deepak Ronanki
Summary: This letter introduces a new reconfigurable battery charger that can charge existing and next-generation EV battery packs with the same power rating. It uses only one relay and a filter capacitor branch, avoiding the need for many passive and active components for reconfiguration. The charger's configuration also avoids the need for a large grid-side filter and can operate in an extremely wide voltage range with intermediate battery voltage charging options.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Energy & Fuels
Feng Wen, Chen Han, Wenhan Zhao, Kesong Ji, Zhoujian Chu
Summary: This paper presents a GIS switch state detection platform based on image recognition technology and wireless power transfer (WPT) technology, effectively addressing the difficulty of judging the switch state or defect type through manual observation. Through the analysis of the stability and anti-offset ability of the WPT system, the effectiveness of the proposed method is demonstrated.
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
Engineering, Electrical & Electronic
Ravikiran Vaka, Ritesh Kumar Keshri
ELECTRICAL ENGINEERING
(2020)
Article
Engineering, Electrical & Electronic
Ravikiran Vaka, Ritesh Kumar Keshri
IET ELECTRIC POWER APPLICATIONS
(2020)
Article
Energy & Fuels
Sandhya Lavety, Ritesh Kumar Keshri, Madhuri A. Chaudhari
Summary: The paper presents a study on the nonlinear dynamic equivalent electric circuit model of a VRLA battery, focusing on identifying the nonlinear battery parameters influenced by temperature during discharging and self-discharging processes. The experimental results show that the model accurately predicts the voltage response of the battery.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Electrical & Electronic
Chengbin Ma, Radu Bojoi, Alfonso Damiano, Sertac Bayhan, Giampaolo Buttichi, Thomas Ignaz Strasser, Ritesh Keshri
Summary: The IEEE Industrial Electronics Society's Energy Technical Committee Cluster was established in October 2018 at the 44th Annual Conference in Washington, D.C. With a focus on addressing global challenges like energy shortages and climate change, the Society aims to lead in the energy field by utilizing multidisciplinary approaches to develop cutting-edge solutions.
IEEE INDUSTRIAL ELECTRONICS MAGAZINE
(2021)
Article
Engineering, Electrical & Electronic
Prabhat R. Tripathi, Parashuram Thakura, Vijay Laxmi, Ritesh Kumar Keshri
Summary: The article introduces a stand-alone PV-based induction motor-driven water pumping system, which aims to provide a reliable water supply solution for water-deprived communities in developing countries. By utilizing a high-gain resonant inverter and boost converter, the system is able to improve efficiency and operability, with validation conducted in a laboratory setting.
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
(2021)
Article
Computer Science, Information Systems
Prabhat Ranjan Tripathi, Vijaya Laxmi, Ritesh Kumar Keshri, Amitkumar Vidyakant Jha, Bhargav Appasani, Nicu Bizon, Phatiphat Thounthong
Summary: The article introduces a three-phase resonant boost inverter (TPRBI) to drive a permanent magnet brushless DC (PMBLDC) motor, minimizing torque ripples by injecting sinusoidal current and eliminating an extra power conversion stage, thus improving system reliability and efficiency.
Article
Energy & Fuels
Sandhya Lavety, Ritesh Keshri, Subhojit Ghosh, Madhuri A. Chaudhari
Summary: This study developed a nonlinear Dynamic Equivalent Electric Circuit Model (DEECM) of a Valve Regulated Lead-Acid (VRLA) battery based on experimental data and datasheet information. The model parameters were estimated using battery current and open-circuit voltage, with a maximum error of 0.4% during discharging and 0.7% during charging.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2021)
Article
Engineering, Multidisciplinary
Sandhya Lavety, Ritesh Kumar Keshri, Madhuri A. Chaudhari
Summary: This article investigates the evaluation of different charging patterns of multistep constant current-constant voltage (MSCC-CV) for fast charging of a valve regulated lead-acid battery for electric vehicles. Through adjusting parameters such as SOC, temperature, and terminal voltage, a shorter charging time and improved battery health were achieved.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2021)
Article
Computer Science, Information Systems
Prabhat R. Tripathi, V. Laxmi, Ritesh K. Keshri, Bhargav Appasani, Taha Selim Ustun
Summary: Single-stage high-gain inverters have attracted research attention for their ability to convert low voltage DC sources into high voltage AC without the need for external filters. The proposed novel inverter operates at fundamental frequency switching, changing the behavior of conventional VSI and achieving low total harmonic distortion. Experimental validation on a 2 kW prototype shows successful operation for various loads.
Article
Engineering, Electrical & Electronic
Prabhat Ranjan Tripathi, Parashuram Thakura, Ritesh Kumar Keshri, Saikat Ghosh, Josep M. Guerrero
IEEE INDUSTRIAL ELECTRONICS MAGAZINE
(2022)
Proceedings Paper
Automation & Control Systems
S. Umredkar, R. K. Keshri, V. B. Borghate, M. M. Renge
Summary: This paper analyzes a new winding excitation technique for induction machines used in electric vehicles, which can achieve variable speed and torque combinations through pole-phase modulation (PPM). The proposed method reduces leakage reactance, torque, and current pulsation while improving overload capacity. Additionally, the new winding technique allows the induction motor to operate with different pole-phase combinations to meet the performance requirements for electric vehicle applications.
IECON 2021 - 47TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
(2021)
Proceedings Paper
Automation & Control Systems
Riddhee Abhyankar, Ritesh Kumar Keshri, Pallavi Mahure, Giuseppe Buja
IECON 2020: THE 46TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
(2020)
Article
Computer Science, Information Systems
Sandhya Lavety, Ritesh Kumar Keshri, Madhuri A. Chaudhari
Article
Biotechnology & Applied Microbiology
S. Umredkar, R. Keshri, M. M. Renge, V. B. Borghate
Article
Computer Science, Information Systems
Manish S. Trivedi, Ritesh Kumar Keshri
