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Computer Science, Information Systems
Daisuke Kobuchi, Hiroyuki Morikawa, Yoshiaki Narusue
Summary: This study proposes a method to estimate all elements of the Z parameters in wireless power transfer systems without requiring synchronization between transmitters and receivers. The method uses measured voltage, current, and DC signals to accurately estimate the Z parameters at a low cost. Circuit simulations and experiments demonstrate the feasibility and effectiveness of the proposed method.
Article
Engineering, Electrical & Electronic
Rafia Malik, Mai Vu
Summary: The combination of wireless charging and computation offloading in edge networks provides a promising solution for power-intensive and computation-heavy applications on user devices. A novel two-stage algorithm is proposed to minimize energy consumption for computation offloading and maximize energy received from wireless charging, optimizing overall performance within power and latency constraints. The results show that optimal energy beamforming outperforms other schemes and that partial offloading leads to lower energy consumption and better wireless charging performance.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
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
Automation & Control Systems
Hanwei Wang, Cheng Zhang, Yun Yang, Hui Wen Rebecca Liang, Shu Yuen Ron Hui
Summary: This article compares the overall efficiency of the directional method and the rotational method for 2-D wireless power transfer systems. Theoretical analysis and experimental results show that the directional method has higher efficiency when the magnetic field vector is controlled within feasible zones.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Automation & Control Systems
Jianwei Mai, Yijie Wang, Xianrui Zeng, Yousu Yao, Kang Wu, Dianguo Xu
Summary: Inductive power transmission is widely used in industries, but the adverse effect of the parasitic capacitance of the coil has been a long-term problem, affecting efficiency and quality factor. This study proposes a solution by connecting compensation capacitors in series to the coil sections to reduce losses. The designed system, with a diameter of 502 mm and a thickness of 22 mm, can transmit 115.2 W of power within a distance of two meters with an efficiency of 29%.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Alexis Narvaez, Claudio Carretero, Ignacio Lope, Jesus Acero
Summary: The article presents the optimization procedure of an inductive power transmission (IPT) system using large size spiral printed circuit board (PCB) coils for high-power transfer. The use of PCBs for coil assembly provides advantages in the manufacturing process and offers a low-profile device suitable for space-constrained applications. The study explores the application of Litz-structure braiding techniques to achieve high energy efficiency in the PCB-based IPT system coils.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
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.
Review
Engineering, Civil
Chakridhar Reddy Teeneti, Tadd T. Truscott, David N. Beal, Zeljko Pantic
Summary: This article discusses the current energy storage and charging technologies for autonomous underwater vehicles (AUVs), introduces the development and advantages of underwater wireless charging technology, and explores the challenges and design principles of inductive wireless power transfer (IWPT) systems.
IEEE JOURNAL OF OCEANIC ENGINEERING
(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.
Review
Engineering, Electrical & Electronic
Mohammad Javad Karimi, Alexandre Schmid, Catherine Dehollain
Summary: This paper provides a systematic review and survey of the latest inductive power and data transmission methods for implantable medical devices (IMDs), covering principles, design parameters, power transfer efficiency, optimization methods, and performance comparisons.
IEEE SENSORS JOURNAL
(2021)
Article
Energy & Fuels
Jacek Maciej Stankiewicz, Agnieszka Choroszucho, Adam Steckiewicz
Summary: This article presents a detailed analysis and computation of wireless power transfer systems using the finite element method and branch current method, discussing theoretical models and presenting formulas for load impedance required to maximize efficiency or load power. The results confirm the correctness of the adopted circuit model, showing the dependence of efficiency and power on the geometry of spiral coils.
Review
Energy & Fuels
Kyle John Williams, Kade Wiseman, Sara Deilami, Graham Town, Foad Taghizadeh
Summary: Light rail vehicles (LRVs) are increasingly in demand to meet the transportation needs of growing urban populations sustainably. This paper reviews existing direct-contact and wireless power transfer (PT) technologies for LRVs and evaluates the feasibility and advantages of inductive power transfer (IPT) and capacitive power transfer (CPT) technologies. It highlights the efficacy of CPT in terms of power transfer capability, safety, and other factors. Limitations and recommendations for future works are also identified.
Article
Green & Sustainable Science & Technology
Giulia Di Capua, Antonio Maffucci, Kateryna Stoyka, Gennaro Di Mambro, Salvatore Ventre, Vincenzo Cirimele, Fabio Freschi, Fabio Villone, Nicola Femia
Summary: This paper presents a system-level approach for analyzing the performance of a dynamic Wireless Power Transfer System for electric vehicles, utilizing an analytical behavioral model which is validated against experimental data. The approach avoids the extensive use of computationally expensive 3D finite element simulations, providing a fast and accurate analysis of performance sensitivity. The system-level analysis assesses the sensitivity of power and efficiency of the WPTS to vehicle misalignment from the nominal trajectory during the dynamic charging process.
Article
Multidisciplinary Sciences
Sangyong Lee, Jeonho Lee, Jongkyum Kwon, Se-Kyo Chung
Summary: The paper addresses the estimation of mutual inductance angle in a 2D WPT system with two Tx coils and one Rx coil, which is crucial for determining the PTE. An improved estimation method based on PLL technique using voltages and currents of Tx coils is proposed and validated through simulation and experimental results.
Article
Energy & Fuels
Naoki Shinohara, Taichi Sasaki
Summary: This paper proposes novel retrodirective systems to enhance the efficiency and safety of microwave power transmission systems in multipath environments. The system utilizes an array antenna with phased conjugation circuits to send back the phase-conjugate signal to the receiver. The authors also improve the system by considering both the phase and amplitude information of the pilot signal. Simulation and experimental results validate the effectiveness of the system.
Article
Computer Science, Information Systems
Michael Oche, Rafidah Md Noor, Johnson Ihyeh Aghinya
COMPUTER COMMUNICATIONS
(2015)
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Engineering, Electrical & Electronic
Hoang Nguyen, Johnson I. Agbinya, John Devlin
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2015)
Article
Engineering, Electrical & Electronic
Hoang Nguyen, Johnson I. Agbinya
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2015)
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Telecommunications
Hoa Doan Thanh, Johnson I. Agbinya
WIRELESS PERSONAL COMMUNICATIONS
(2016)
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Telecommunications
Johnson I. Agbinya
WIRELESS PERSONAL COMMUNICATIONS
(2018)
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Telecommunications
Johnson Agbinya, Hoang Nguyen
WIRELESS PERSONAL COMMUNICATIONS
(2019)
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Environmental Sciences
Nahina Islam, Ammar Alazab, Johnson Agbinya
Article
Engineering, Electrical & Electronic
Hoang Nguyen, Johnson Agbinya
Summary: This paper presents a model of an inductive transmitter that diversifies the magnetic link to the receiver using multiple internal resonators, which can increase efficiency and received power, as well as support multiple frequency diversity.
PROGRESS IN ELECTROMAGNETICS RESEARCH M
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Ghassan Kbar, Ammar Alazab, Johnson Agbinya
2019 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT)
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Nagi F. Ali Mohamed, Johnson I. Agbinya
2018 IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER TRANSFER (WOW)
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Nagi F. Ali Mohamed, Johnson I. Agbinya, Abdanaser Okaf
2018 IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER TRANSFER (WOW)
(2018)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Johnson I. Agbinya
2014 Pan African Conference on Science, Computing and Telecommunications (PACT)
(2014)
Article
Telecommunications
Hoa Doan Thanh, Johnson I. Agbinya
INTERNATIONAL JOURNAL OF ELECTRONICS AND TELECOMMUNICATIONS
(2013)
Article
Engineering, Electrical & Electronic
Wandry R. Faria, Gregorio Munoz-Delgado, Javier Contreras, Benvindo R. Pereira Jr
Summary: This paper proposes a new bilevel mathematical model for competitive electricity markets, taking into account the participation of distribution systems operators. A new pricing method is introduced as an alternative to the inaccessible dual variables of the transmission system.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Chao Zhang, Liwei Zhang, Dong Wang, Kaiyuan Lu
Summary: The load disturbance rejection ability of electrical machine systems is crucial in many applications. Existing studies mainly focus on improving disturbance observers, but the speed response control during the transient also plays a significant role. This paper proposes a sliding mode disturbance observer-based load disturbance rejection control with an adaptive filter and a Smith predictor-based speed filter delay compensator to enhance the transient speed response.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Arif Hussain, Arif Mehdi, Chul-Hwan Kim
Summary: The proposed scheme in this research paper is a communication-less islanding detection system based on recurrent neural network (RNN) for hybrid distributed generator (DG) systems. The scheme demonstrates good performance in feature extraction, feature selection, and islanding detection, and it also performs effectively in noisy environments.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
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Engineering, Electrical & Electronic
Zonghui Sun, Xizheng Guo, Shinan Wang, Xiaojie You
Summary: This paper presents a status pre-matching method (SPM) that eliminates the iterative calculations for resistance switch model, and simulates all operation modes of PECs through a more convenient approach. Furthermore, a FPGA implementation scheme is proposed to fully utilize the multiplier units of FPGA.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Rui Zhou, Shuheng Chen, Yang Han, Qunying Liu, Zhe Chen, Weihao Hu
Summary: In power system scheduling with variable renewable energy sources, considering both spatial and temporal correlations is a challenging task due to the complex intertwining of spatiotemporal characteristics and computational complexity caused by high dimensionality. This paper proposes a novel probabilistic spatiotemporal scenario generation (PSTSG) method that generates probabilistic scenarios accounting for spatial and temporal correlations simultaneously. The method incorporates Latin hypercube sampling, copula-importance sampling theory, and probability-based scenario reduction technique to efficiently capture the spatial and temporal correlation in the dynamic optimal power flow problem. Numerical simulations demonstrate the superiority of the proposed approach in terms of computational efficiency and accuracy compared to existing methods.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Juan Manuel Mauricio, J. Carlos Olives-Camps, Jose Maria Maza-Ortega, Antonio Gomez-Exposito
Summary: This paper proposes a simplified thermal model of VSC, which can produce accurate results at a low computational cost. The model consists of a simple first-order thermal dynamics system and two quadratic equations to model power losses. A methodology is also provided to derive the model parameters from manufacturer data.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Jae-Kyeong Kim, Kyeon Hur
Summary: This paper investigates the relationship between the accuracy of finite difference-based trajectory sensitivity (FDTS) analysis and the perturbation size in non-smooth systems. The study reveals that the approximation accuracy is significantly influenced by the perturbation size, and linear approximation is the most suitable method for practical applications.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Yuan Si, Amjad Anvari-Moghaddam
Summary: This paper investigates the impact of geomagnetic disturbances on small signal stability in power systems and proposes the installation of blocking devices to mitigate the negative effects. Quantitative evaluation reveals that intense geomagnetic disturbances significantly increase the risk of small signal instability. Optimal placement of blocking devices based on sensitivity scenarios results in a significant reduction in the risk index compared to constant and varying induced geoelectric fields scenarios.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Xuejian Zhang, Wenxin Kong, Nian Yu, Huang Chen, Tianyang Li, Enci Wang
Summary: The intensity estimation of geomagnetically induced currents (GICs) varies depending on the method used. The estimation using field magnetotelluric (MT) data provides the highest accuracy, followed by the estimation using 3D conductivity models and the estimation using a 1D conductivity model. The GICs in the North China 1000-kV power grid have reached a very high-risk level, with C3 and C4 having a significant impact on the geoelectric field and GICs.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Yue Pan, Shunjiang Lin, Weikun Liang, Xiangyong Feng, Xuan Sheng, Mingbo Liu
Summary: This paper introduces the concept and model of offshore-onshore regional integrated energy system, and proposes a stochastic optimal dispatch model and an improved state-space approximate dynamic programming algorithm to solve the model. The case study demonstrates the effectiveness and high efficiency of the proposed method in improving economic and environmental benefits.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Mohammad Eydi, Reza Ghazi, Majid Oloomi Buygi
Summary: Proportional current sharing, voltage restoration, and SOCs balancing in DC microgrid control algorithms are the leading challenges. This paper proposes a novel communication-less control method using a capacitor and a DC/DC converter to stabilize the system and restore the DC bus voltage. The method includes injecting an AC signal into the DC bus, setting the current of energy storage units based on frequency and SOC, and incorporating droop control for system stability. Stability analysis and simulation results validate the effectiveness of the proposed method.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Xiangjian Meng, Xinyu Shi, Weiqi Wang, Yumin Zhang, Feng Gao
Summary: With the increasing penetration of photovoltaic power generation, regional power forecasting becomes critical for stable and economical operation of power systems. This paper proposes a minute-level regional PV power forecasting scheme using selected reference PV plants. The challenges include the lack of complete historical power data and the heavy computation burden. The proposed method incorporates a novel reference PV plant selection method and a flexible approach to decrease the accumulated error of rolling forecasting.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Huabo Shi, Yuhong Wang, Xinwei Sun, Gang Chen, Lijie Ding, Pengyu Pan, Qi Zeng
Summary: This article investigates the dynamic stability characteristics of the full size converter variable speed pumped storage unit and proposes improvements for the control strategy. The research is important for ensuring the safe and efficient operation of the unit.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Firmansyah Nur Budiman, Makbul A. M. Ramli, Houssem R. E. H. Bouchekara, Ahmad H. Milyani
Summary: This paper proposes an optimal harmonic power flow framework for the daily scheduling of a grid-connected microgrid, which addresses power quality issues and ensures effective control through demand side management.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
Article
Engineering, Electrical & Electronic
Cong Zeng, Ziyu Chen, Jizhong Zhu, Fellew Ieee
Summary: This paper introduces a distributed solution method for the multi-objective OPF problem, using a coevolutionary multi-objective evolutionary algorithm and the idea of decomposition. The problem is alleviated by decomposing decision variables and objective functions, and a new distributed fitness evaluation method is proposed. The experimental results demonstrate the effectiveness of the method and its excellence in large-scale systems.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2024)
