Article
Energy & Fuels
Aratrika Ghosh, Don Gamage, Xibeng Zhang, Abhisek Ukil, Aiguo Patrick Hu
Summary: Solar energy with battery storage has great potential for residential power supply, and the wireless power transfer (WPT) interface can simplify the installation process and provide additional benefits such as electrical isolation, lower maintenance cost, and better reliability. This research fills the gap by presenting the application of contactless power transfer system with battery storage for solar-powered low-voltage (LV) power supply, and provides a theoretical model and experimental results to demonstrate its feasibility.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Electrical & Electronic
Yixiang Yao, Abubakar Uba Ibrahim, Wenxing Zhong
Summary: The article proposes a design methodology for three-resonator WPT systems to achieve a constant output power in a wide coupling range. It reviews the basic characteristics of the three-resonator WPT system and presents the proposed design methodology in detail.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Thermodynamics
Yegal Darhovsky, Martin Mellincovsky, Dmitry Baimel, Alon Kuperman
Summary: The paper discusses the design and performance of a contactless inductive power transfer system, introducing a novel topology with none-series compensation that demonstrates superior efficiency and performance. Through simulations and experiments, it is shown that the system design can effectively achieve the goals outlined in the theoretical analysis.
Article
Engineering, Electrical & Electronic
David M. Roberts, Aaron P. Clements, Rowan McDonald, Jake S. Bobowski, Thomas Johnson
Summary: Efficient four-coil inductive power transfer systems operating at 100 MHz were described, utilizing electrically small and high-Q loop-gap resonators. The LGR design, in contrast to helical or spiral resonators, confines electric fields to the capacitive gap, making the IPT system immune to interference from nearby dielectric objects. Experimental results showed efficient operation at powers up to 32 W and discussed potential applications.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
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
Automation & Control Systems
Jung-Hoon Cho, Sunghun Jung, Young-Joon Kim
Summary: This article presents a wireless power transfer system that can accommodate various receiver configurations, power distribution ratios, loads, and distances, including multiple relays. The relays in each receiver transfer power to adjacent receivers while functioning as relays, allowing for power consumption by local loads. The article introduces a methodology for designing WPT resonators that achieve optimum efficiency for multiple receivers with different power distribution ratios, loads, and distances. The WPT configuration can also be expanded to a large-scale mxn two-dimensional grid. The article provides a mathematical model of the proposed WPT system and demonstrates the concept of a multiple-receiver wireless power network using a power inverter. Experimental examples with variable parameters and a total power delivery of 100W are discussed, showcasing the practical applicability of this approach through a demonstration on a consumer display and speaker device.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Maryam Heidarian, Samuel J. Burgess
Summary: Power transfer efficiency (PTE) is a key performance parameter in the development of resonant inductive power transfer (IPT) systems. A new figure-of-merit (FoM), called the strong coupling factor (P-scf), is proposed to find an optimum coil geometry for maximizing PTE.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Article
Automation & Control Systems
Chenwen Cheng, Zhe Zhou, Weiguo Li, Zhanfeng Deng, Chunting Chris Mi
Summary: This article introduces a power relay system for wireless power transfer to multiple loads using magnetic coupling. The system uses bipolar coils and compensation capacitors to decouple load power, achieve constant voltage characteristics, and equal load voltage distribution. Experimental results show that at a power level of 12.6 W, the system can achieve a maximum efficiency of 94.0%.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Energy & Fuels
Kalina Detka, Krzysztof Gorecki, Przemyslaw Ptak
Summary: This article presents a new model of a dedicated air transformer for computer analyses of wireless power transfer systems. It takes into account the electric, magnetic and thermal properties of the modeled device. The results of its experimental verification are shown, along with measurements and computations of an air transformer and a wireless power transfer system containing this transformer. The influence of load resistance on the properties of the considered system is also analyzed.
Article
Computer Science, Information Systems
Saeideh Pahlavan, Mostafa Shooshtari, Mohammadreza Maleki, Shahin Jafarabadi Ashtiani
Summary: The study introduces an induction link mechanism based on overlapping arrays to eliminate blank spots in the electromagnetic field and achieve a balanced distribution in moving object applications. Results show that using overlapping arrays can improve power transmission efficiency and provide better power tolerance compared to non-overlapping scenarios.
Article
Engineering, Electrical & Electronic
Adrian Amler, Nikolai Weitz, Martin Marz
Summary: In recent years, research on wireless power transfer and switched-mode power supplies with a capacitive coupling link has increased. This article proposes a converter with a resonant single-ended push-pull inverter operating at radio frequencies to drive the non-resonant capacitive power transfer link. The converter improves power transfer characteristics and offers benefits such as simplified design process and predictable voltage stress.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Energy & Fuels
Mattia Simonazzi, Ugo Reggiani, Leonardo Sandrolini
Summary: This study investigates the possibility of increasing transmission efficiency in mid-range wireless power transfer applications by inserting resonant relay coils. The results show that the current distribution depends on the load and receiver position, and the theoretical findings are validated through experimental measurements.
Article
Chemistry, Analytical
Juan M. Romero-Arguello, Anh-Vu Pham, Christopher S. Gardner, Brad T. Funsten
Summary: This paper presents the design and development of miniature coils for wireless power and data transfer through metal, demonstrating successful power and data transfer through aluminum using harvested power.
Article
Engineering, Electrical & Electronic
Reza Naghash, Seyed Mohammad Mahdi Alavi, Seyed Ebrahim Afjei
Summary: This article discusses the robust control of wireless power transfer (WPT) systems using quantitative feedback theory (QFT) to design a feedback compensator and prefilter for shaping the system's frequency responses. The effectiveness of the QFT-based robust control methodology is evaluated through simulations and practical experiments and compared with other design methods. The small-signal transfer function modeling of WPT systems is also elaborated in this model-based approach.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Yuhu Qu, Bo Zhang, Wenchao Gu, Xujian Shu
Summary: The PT symmetric principle can improve the freedom of wireless power transfer system. This article presents a novel three-coil WPT system with S/S/PS compensation network to expand the PT symmetric region and increase the output power.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)