Article
Engineering, Electrical & Electronic
Anh Dung Nguyen, Shu-Xin Chen, Yang Chen, Cheng-Wei Chen, Byeongcheol Han, Jih-Sheng Lai
Summary: This paper proposes a 1-kW DC-DC buck converter with a four-phase interleaved matrix inductor for battery charging applications. The adoption of matrix inductor design reduces inductor volume and effectively lowers the impact of DC bias through flux sharing and cancellation, leading to decreased inductor core loss. Interleaved operations result in lower output current ripple, making it suitable for battery charging applications, with a peak efficiency of 99.2% achieved in experimental results.
IET POWER ELECTRONICS
(2021)
Article
Energy & Fuels
Remy Cleenwerck, Hakim Azaioud, Majid Vafaeipour, Thierry Coosemans, Jan Desmet
Summary: This paper provides a comprehensive comparison between low-voltage DC (LVDC) microgrid and AC microgrid in terms of integrating low-carbon technologies. It introduces a novel approach of charging electric vehicles (EVs) on low-voltage distribution networks using LVDC backbone. The study evaluates and compares both architectures through power flow analysis. The results show significant improvements in power quality, specifically voltage imbalances and conversion losses, with the proposed LVDC backbone. Moreover, it discusses the impact of EVs and PVs penetration degrees on energy efficiency, as well as the effect of charging power levels on local self-consumption reduction.
Article
Engineering, Electrical & Electronic
Jitendra Gupta, Bhim Singh
Summary: This paper presents a single-stage ac-dc power conversion unit for LEVs charger applications. The unit employs a bridgeless isolated modified SEPIC converter and incorporates continuous input and output current features. The converter operates under discontinuous current mode and exhibits excellent applicability in charging applications. Experimental verification is provided to justify its efficacy for LEVs charging applications.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Chemistry, Physical
Mahmoud Dhimish, Nigel Schofield
Summary: The paper introduces a single-switch unidirectional buck-boost dc-dc converter for solar PV and fuel cell applications, achieving high efficiency and wide input voltage range. With a limited number of passive components and specific topology, the converter enables continuous power flow control and maintains stability of inductance current and output voltage under different conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Automation & Control Systems
Sohrab Abbasian, Mohammad Farsijani, Mohammad Tavakoli Bina, Amir Shahirinia
Summary: In this article, a new nonisolated high-gain (HG) dc-dc topology is presented. The proposed topology uses a magnetically coupled inductor to achieve a higher voltage gain compared to other topologies. The resonance passive clamping circuits are used to recycle leakage inductance energy and mitigate voltage spikes, improving the efficiency of the converter. Numerical investigation, MATLAB/Simulink simulations, and experimental validation are provided.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Computer Science, Information Systems
Osama Ahmed, Yousuf Khan, Muhammad A. Butt, Nikolay L. Kazanskiy, Svetlana N. Khonina
Summary: This research investigates the power and switching efficiency of GaN-based FET in an active-clamp, DC-to-DC flyback converter and compares it with Si-based devices. The proposed GaN-based topology achieves high power-conversion efficiency and operates at higher frequency values.
Article
Computer Science, Information Systems
Jannik Schaefer, Johann Walter Kolar
Summary: This paper presents an isolated three-port DC/DC converter topology for energy distribution grid of electric vehicles, with simplicity in control and circuit complexity, achieving high efficiency and power density for charging EVs.
Article
Automation & Control Systems
Vafa Marzang, Seyed Majid Hashemzadeh, Peyman Alavi, Arash Khoshkbar-Sadigh, Seyed Hossein Hosseini, Muhammad Zeeshan Malik
Summary: This article proposes a new TS-TM high step-up dc-dc converter with advantages such as high efficiency, low cost, and low voltage stress. A novel TS-TM structure with transformer is also introduced to address electromagnetic interference issues, and experimental validation is conducted.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Computer Science, Information Systems
Sathiya Ranganathan, Arun Noyal Doss Mohan
Summary: A new topology of flyback converter for PV application is proposed to address the drawbacks of lower efficiency and non-compactness in size. The converter shows reduced ripple in input current and improved conversion efficiency, making it suitable for high voltage DC applications as verified using MATLAB.
Article
Engineering, Electrical & Electronic
B. S. Sudarshan, G. Arunkumar
Summary: This work proposes a novel DC-DC converter based on an isolated single-ended primary inductor converter (SEPIC) and isolated Cuk converter to enable simultaneous charging of batteries of low- and medium-power EVs. The proposed converter operates without spikes in input and output currents and can charge one battery at the output voltage level and simultaneously charge two batteries at half the output voltage. The converter's response showcases the novelty and advantages of the proposed converter, which uses fewer switches, diodes, inductors, and capacitors, and offers a new and simple converter to charge multiple low- and medium-power EV batteries of different ratings simultaneously with a low component count.
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Yuning Bai, Sideng Hu, Zhi Yang, Mustafa Tahir, Yongjian Zhi
Summary: This article discusses the challenges of noise reduction in wide bandgap power devices and proposes a phase-shifted modulation method for selective common mode noise mitigation.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Computer Science, Information Systems
Dhafer Almakhles, M. Jagabar Sathik, J. Divya Navamani, A. Lavanya, M. S. Bhaskar
Summary: This paper presents a new generalized switched-inductor-capacitor module for a non-isolated dc-dc converter with low voltage dc source applications. The proposed module can be extended to achieve high voltage gain and has low voltage stress on power components, allowing for high efficiency and low cost. Experimental results show promising outcomes for various duty cycles.
Review
Chemistry, Multidisciplinary
Mohammad Faisal Akhtar, Siti Rohani S. Raihan, Nasrudin Abd Rahim, Mohammad Nishat Akhtar, Elmi Abu Bakar
Summary: Rising greenhouse gas emissions from fossil fuel-driven vehicles are causing environmental damage. Electric vehicles (EVs) have been proposed as a solution, particularly light electric vehicles (LEVs) with their potential in public transportation. To promote LEV adoption, robust charging systems are crucial. This paper reviews recent research on LEV charging techniques, focusing on DC-DC converter topologies in both on-board and off-board chargers. The review categorizes LEV charger DC-DC converters into isolated and non-isolated topologies and explores challenges and emerging trends in LEV charging.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
Eser Caliskan, Ozgur Ustun
Summary: In this study, a novel smart efficiency tracking algorithm is proposed for quick battery charging of light electric vehicles using GaN-based LLC resonant converter. Different methods including conventional frequency modulation, single pulse width modulation, and discontinuous operation mode are used to track the converter efficiency under different loading conditions. The study provides an in-depth analysis of charging modes, theoretical background, design study, switching control strategies, modeling study, and simulation results. The proposed efficiency tracking method is validated and shows a 20% efficiency increase for low loading conditions of GaN-based LLC converter.
Article
Energy & Fuels
Dai Wan, Jinliang Li, Lulin Zhang, Jingtao Xu
Summary: This paper proposes a current observer-based digital critical conduction mode control of a bidirectional DC-DC converter for battery charging/discharging applications, achieving full-range soft switching. The proposed control method enables the converter to operate in the critical continuous mode, achieving full-range zero-voltage switching and optimizing inductor current ripple. The design complexity of the hardware circuit can be simplified by eliminating the need for a zero-crossing detection analog circuit or current sampling circuit.
FRONTIERS IN ENERGY RESEARCH
(2023)
