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Journal articles on the topic 'Wireless Power Transfer (WPT)'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Raja, Chandrasekar, M. Ramachandran, and Manjula Selvam. "Opportunities and Challenges for Wireless Power Transfer System." Journal on Applied and Chemical Physics 1, no. 1 (2022): 14–21. http://dx.doi.org/10.46632/jacp/1/1/3.

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"In truth, WPT has at least 30 years of history with the term "IPT," using the same fundamental tenet that has already been established. The development of WPT technology has recently accelerated, with transmission distances at the kilowatt power level ranging from a few millimeters up to several hundred millimeters and a point loading efficiency of more than 90%, which applies to both static and dynamic charging environments. Due to this, WPT is particularly appealing for electric vehicles (EVs). However, the performance of wireless power transfer (WPT) systems in various WPT applications rem

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2

MARINESCU, ANDREI. "The Romanian wireless power transfer network." Journal of Engineering Sciences and Innovation 5, no. 12 (2020): 149–56. http://dx.doi.org/10.56958/jesi.2020.5.2.6.

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"Wireless power transfer (WPT) is a disruptive technology because it gives up the technology of wire transmission, the only one used in electrical and electronic engineering so far. Although made known since the end of the 19th century through the inventions of Nikola Tesla, WPT became applicable in practice only in the 80s of the 20th century with the progress of power - and micro-electronics. The field is now being studied and applied worldwide for transferred power from a few W up to hundreds of kW, as part of electric mobility and beyond. The fact that numerous researches and applications

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Salsabila Aulia, Sandi Rahyadi, Nadita Dwi Pramestia, Bryant Reza Pahlevi, and Diyajeng Luluk Karlina. "Pemanfaatan Medan Elektromagnetik untuk Teknologi Wireless Power Transfer." Jurnal Penelitian Rumpun Ilmu Teknik 4, no. 1 (2024): 16–26. https://doi.org/10.55606/juprit.v4i1.4613.

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Wireless Power Transfer (WPT) technology offers a solution to transfer electrical energy wirelessly using electromagnetic fields, providing convenience in charging electronic devices. This technology operates through electromagnetic inductive resonance, enabling efficient power transmission from transmitter to receiver. This article discusses the fundamental mechanisms, practical applications, and technical challenges of WPT. Electromagnetic field safety is a primary concern in the implementation of this technology, especially regarding its impact on health and the environment. With recent inn

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Hussin, Nur Hazwani. "Encryption Techniques and Wireless Power Transfer Schemes." Indonesian Journal of Electrical Engineering and Computer Science 9, no. 1 (2018): 183. http://dx.doi.org/10.11591/ijeecs.v9.i1.pp183-190.

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<p>Wireless power transfer (WPT) is one of the most useful ways to transfer power. Based on power transfer distances, the WPT system can be divided into three categories, namely, near, medium, and far fields. Inductive coupling and capacitive coupling contactless techniques are used in the near-field WPT. Magnetic resonant coupling technique is used in the medium-field WPT. Electromagnetic radiation is used in the far-field WPT. This paper reviews the techniques used in WPT. In addition, energy encryption plays a major role in ensuring that power is transferred to the true receiver. Ther

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Nur, Hazwani Hussin, M. Azizan M., Ali A., and A. M. Albreem M. "Encryption Techniques and Wireless Power Transfer Schemes." Indonesian Journal of Electrical Engineering and Computer Science 9, no. 1 (2018): 183–90. https://doi.org/10.11591/ijeecs.v9.i1.pp183-190.

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Wireless power transfer (WPT) is one of the most useful ways to transfer power. Based on power transfer distances, the WPT system can be divided into three categories, namely, near, medium, and far fields. Inductive coupling and capacitive coupling contactless techniques are used in the near-field WPT. Magnetic resonant coupling technique is used in the medium-field WPT. Electromagnetic radiation is used in the far-field WPT. This paper reviews the techniques used in WPT. In addition, energy encryption plays a major role in ensuring that power is transferred to the true receiver. Therefore, th

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AGÇAL, ALI, ALTAN KALAY, and RAMAZAN CETIN. "WIRELESS POWER TRANSFER FOR UNDERWATER VEHICLES." REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE 68, no. 2 (2023): 194–99. http://dx.doi.org/10.59277/rrst-ee.2023.68.2.13.

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Wireless power transfer (WPT) through magnetic resonance coupling (MRC) offers a safe and simple solution for underwater (UV) vehicles without being affected by water conductivity. Due to its ease of control in WPT systems, the most suitable topology is Serial-Serial (SS). In this study, square transmitting and receiving coils with dimensions of 40 cm - 40 cm were designed for 3.3 kW power transmission at 85 kHz. The design was studied in the air, pure water, and seawater environments. Three different cases were analyzed with ANSYS Maxwell 3D. The WPT system responded similarly in air and pure

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Nasir, M. Zulmajdi M., Latifah Mohamed, Azuwa Ali, Norshafinash Saudin, and Nur Adyani M. Affendi. "Effects of Resonant Coil on Power Transfer Efficiency in Wireless Power Transfer." Journal of Physics: Conference Series 2998, no. 1 (2025): 012023. https://doi.org/10.1088/1742-6596/2998/1/012023.

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Abstract Wireless power transmission (WPT) is a rapidly growing research area due to its potential for providing high-tech solutions by transmitting power wirelessly across an air gap. However, the energy losses experienced in a reduction in WPT efficiency, where the energy transfer efficiency during the transmission process frequently resulted less than 50% and can only transfer electrical power in a short range. This project investigates the impact of resonant coils to improve the power transfer efficiency (PTE) of WPT, where the resonant coupling is included with the transmitter coil and/or

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Khan, Muhammad Jibran, and Nida Tabassum Khan. "Energy Acquisition Through Wireless Power Transfer." Journal of Progress in Engineering and Physical Science 1, no. 1 (2022): 23–26. http://dx.doi.org/10.56397/jpeps.2022.11.04.

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Battery-powered devices face unprecedented technical problems due to limits such as low power density, expensive, and heaviness. Wireless power transfer (WPT) is a revolutionary energization pattern that provides a completely new way for electric-driven devices to acquire energy, reducing their reliance on batteries. This study provides a review of WPT approaches, focusing on their working mechanisms, technical obstacles and traditional applications. This study focuses on WPT systems and highlights current important research areas as well as potential development trends. This unique energy tra

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9

Rong, Cancan, Lihui Yan, Long Li, Yunhui Li, and Minghai Liu. "A Review of Metamaterials in Wireless Power Transfer." Materials 16, no. 17 (2023): 6008. http://dx.doi.org/10.3390/ma16176008.

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Wireless power transfer (WPT) is a technology that enables energy transmission without physical contact, utilizing magnetic and electric fields as soft media. While WPT has numerous applications, the increasing power transfer distance often results in a decrease in transmission efficiency, as well as the urgent need for addressing safety concerns. 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. The basic principles of magne

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B, Jamge S., Pooja N. Kalal, Preeti S. Togare, Ruchika A. Vallamdeshi, and Probhodhini P.Waghe. "Wireless Power Transmission Technology." Journal of Image Processing and Intelligent Remote Sensing, no. 26 (October 21, 2022): 32–37. http://dx.doi.org/10.55529/jipirs.26.32.37.

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In this WPT, the main concept is power transmission without use of wires. In electrical power system, most of losses occurred in transmission & distribution with the use of this concept transmission system to related history of wireless power transmission system also the related Power transfer technology it is technology eliminates the drawbacks of existing wires technology. In this electrical energy transfer by electromagnetic induction is typically magnetic. It will be power transmits transmission wireless energy (WPT).

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Alieksieiev, V. O., D. V. Gretskih, D. S. Gavva, and V. G. Lykhograi. "Wireless power transmission technologies." Radiotekhnika, no. 211 (December 30, 2022): 114–32. http://dx.doi.org/10.30837/rt.2022.4.211.09.

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The article consists of three parts. The analysis of existing technologies of wireless power transfer (WPT) is carried out in the first part. It is noted that one of the factors that determines the choice of one or another WPT technology is the distance over which the power is transmitted and the type of electromagnetic (EM) energy used. The essence of WPT technologies in the near zone, Fresnel zone and Fraunhofer zone is explained. A generalized block diagram of the WPT system is presented. Areas of application and trends in the further development of the WPT technologies over short distances

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Chitraansh Chaudhary. "Wireless Power Transfer Technologies, Standards And Applications." Journal of Advances and Scholarly Researches in Allied Education 21, no. 5 (2024): 41–48. https://doi.org/10.29070/0jrxrn19.

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Wireless power transfer (WPT) has emerged as a transformative technology, enabling the transmission of electrical energy without physical connectors. This abstract explores the primary technologies driving WPT, including inductive coupling, magnetic resonance coupling, and radio-frequency transmission. Each method's underlying principles, advantages, and limitations are examined. The paper also discusses current standards governing WPT systems and highlights diverse applications across industries such as consumer electronics, healthcare, and automotive sectors. Furthermore, the challenges face

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13

You, Sirui. "Public perception of wireless power transfer safety." F1000Research 13 (June 18, 2024): 651. http://dx.doi.org/10.12688/f1000research.144261.1.

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Background Wireless Power Transfer (WPT) technology has changed how energy is distributed, allowing power to be transmitted without using wires. Despite being used in devices like cell phones, electric cars, and medical devices; people are worried about the safety and health effects of wireless power transfer. Methods Here this concern research work has used a survey method to gather information from a diverse group of people, focusing on various demographic factors and educational aspects. The research has analysed the knowledge of people regarding the application of wireless power transfer (

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You, Sirui. "Public perception of wireless power transfer safety." F1000Research 13 (March 4, 2025): 651. https://doi.org/10.12688/f1000research.144261.2.

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Background WPT information combines the power source with the load to provide energy through technology instead of using a wire. People are concerned about the safety and health implications of wireless power transfer even though it is already being used in devices like cell phones, electric cars, and medical devices. Methods Here this concern research work has used a survey method to gather information from a diverse group of people, focusing on various demographic factors and educational aspects. The research has analysed the knowledge of people regarding the application of wireless power tr

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15

Qiu, Muchen. "Research and classification of wireless power transfer with relative application." Journal of Physics: Conference Series 2108, no. 1 (2021): 012036. http://dx.doi.org/10.1088/1742-6596/2108/1/012036.

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Abstract In this paper, wireless power transfer (WPT) will be discussed in its research and application. The basic information like the reason why devices choose to use wireless power and the concept of typical WPT types is introduced. The wireless power transfer system can be divided into 5 diverse types by the theory of power transmitting, and the working principle will be introduced separately. Then, the detail of WPT via magnetically-coupled resonance is mainly discussed, including the analyzing methods, optimization scheme and the current problems. Finally, this paper give two examples on

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Nebrida, Alan P. "Characterization Of Resonant Coupled Inductor In A Wireless Power Transfer System." Current Integrative Engineering 2, no. 1 (2024): 42–59. http://dx.doi.org/10.59762/cie570390542120240205133744.

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Wireless power transfer (WPT) has garnered significant interest as a potentially transformative technology in the energy sector, as it presents a novel approach to powering and charging devices. The functionality of this technology is predicated upon the utilization of electromagnetic coupling to facilitate the wireless transmission of energy between two entities. Despite the considerable potential, wireless power transfer (WPT) faces significant obstacles that restrict its practical feasibility. One notable challenge that arises is the decrease in power transfer efficiency as the distance bet

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17

Lee, Eun S. "Editorial on Wireless Power Transfer (WPT): Present Advancements, Applications, and Future Outlooks." Applied Sciences 14, no. 22 (2024): 10627. http://dx.doi.org/10.3390/app142210627.

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The Evolution and Significance of Wireless Power Transfer (WPT): Wireless power transfer (WPT) technologies, which enable the transmission of electrical energy without the need for physical connectors, have emerged as a transformative solution in various industries [...]

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18

Mude, Prof S. K. "Wireless Power Transfer of Electric Vehicle Battery Charging." International Journal for Research in Applied Science and Engineering Technology 12, no. 5 (2024): 752–56. http://dx.doi.org/10.22214/ijraset.2024.61711.

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Abstract: Wireless power transfer (WPT) is a cutting-edge technology that utilizes magnetic resonance to eliminate the need for cumbersome wires. WPT builds upon the principles of inductive power transfer and has been rapidly advancing in recent years. At power levels of kilowatts, the transfer distance can range from a few millimeters to several hundred meters, achieving an efficiency of over 90%. This progress has made WPT an attractive option for electric vehicle (EV) charging, both in stationary and dynamic settings. This study examines the latest developments in WPT as it pertains to wire

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Nur Hazwani Hussin, Muhammad Mokhzaini Azizan, Azuwa Ali, Norhidayu Rameli, Nur Hazirah Zaini, and Shahnurriman Abdul Rahman. "Comparison Techniques for Optimization Switching Frequency In Energy Encryption Of Wireless Power Transfer System." Journal of Advanced Research in Applied Sciences and Engineering Technology 26, no. 2 (2022): 24–28. http://dx.doi.org/10.37934/araset.26.2.2428.

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This paper reviews the techniques for optimization switching frequency used in Wireless power transfer (WPT). WPT is one of the most useful ways to transfer power. Based on distances power transfer, the WPT system can be divided into three categories, namely, near, medium, and far fields. Inductive coupling and capacitive coupling contactless techniques are used in the near-field WPT. Magnetic resonant coupling technique is used in the medium-field WPT. Electromagnetic radiation is used in the far-field WPT. From the comparison in this paper, a model and design algorithm to optimize switching

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Tseng, Victor Farm-Guoo, Joshua J. Radice, Nathan Lazarus, and Sarah Bedair. "Acoustic vibrations for versatile wireless power transfer." Journal of the Acoustical Society of America 151, no. 4 (2022): A245. http://dx.doi.org/10.1121/10.0011206.

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We present an overview of prior/recent work done at the US Army Combat Capabilities Command—Army Research Laboratory on using acoustic waves for wireless power transfer (WPT). In the past we have demonstrated through-air ultrasonic phased array power beaming, through-metal longer distance transfer using Lamb waves, and power/data transfer to embedded sensor nodes. Acoustic WPT has the advantage of not being shielded by metal, and can achieve higher efficiencies than inductive WPT at larger distances. Part of our recent work is on developing a through-metal acoustic WPT based wireless UAV recha

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Cheah, Wei Chen, Simon Andrew Watson, and Barry Lennox. "Limitations of wireless power transfer technologies for mobile robots." Wireless Power Transfer 6, no. 2 (2019): 175–89. http://dx.doi.org/10.1017/wpt.2019.8.

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AbstractAdvances in technology have seen mobile robots becoming a viable solution to many global challenges. A key limitation for tetherless operation, however, is the energy density of batteries. Whilst significant research is being undertaken into new battery technologies, wireless power transfer may be an alternative solution. The majority of the available technologies are not targeted toward the medium power requirements of mobile robots; they are either for low powers (a few Watts) or very large powers (kW). This paper reviews existing wireless power transfer technologies and their applic

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Nnamdi, Ugochukwu C., and Ifeoma B. Asianuba. "Wireless Power Transfer: A Review of Existing Technologies." European Journal of Engineering and Technology Research 8, no. 3 (2023): 59–66. http://dx.doi.org/10.24018/ejeng.2023.8.3.3038.

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Wireless Power Transfer (WPT) can be described as the processing of transmitting electricity without the use of wires. It has been increasingly used in places where battery depletion and replacement are major issues. WPT Technology are being used in different sectors. They include wireless charging, Electric vehicles, consumer electronics, etc. The paper describes the various types of WPT technologies; Inductive Coupling, Magnetic Resonance and Radio Frequency (RF) technology. It also discusses the advantages and shortfalls of each type. An extensive survey of past works was discussed. Results

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Luan, Haitao. "Wireless Power Transfer: An Overview and Challenges." Journal of Engineering System 2, no. 3 (2024): 66–76. https://doi.org/10.62517/jes.202402311.

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Nowadays, individuals have the ability to conveniently place their electric devices on wireless chargers for recharging. What if this same technology could be applied to EVs? This inquiry potentially obviates the need for low power density, high cost, and heavy weight associated with plug-in charging. Wireless power transfer (WPT) represents a power delivery method characterized by high performance, durability, and adaptability, reducing reliance on battery storage. This paper presents an overview of WPT technology by primarily examining the principle and theory of wireless charging, discussin

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Yamaguchi, Kazuya, Takuya Hirata, and Ichijo Hodaka. "Using Square Wave Input for Wireless Power Transfer." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 1 (2016): 431. http://dx.doi.org/10.11591/ijece.v6i1.pp431-438.

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A wireless power transfer (WPT) circuit is composed of a transmitting circuit with an AC power supply and a receiving circuit with a load, and the circuits are wirelessly connected each other. Then a designer chooses the wave form of the AC power supply. Many papers about WPT adopt a sinusoidal wave as the input. The frequency of the sinusoidal wave is generally determined to the resonant frequency of the circuit for high power transfer. Since the number of circuit elements in the power supply to generate a square wave is much less than that of a sinusoidal wave, WPT with a square wave input s

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Yamaguchi, Kazuya, Takuya Hirata, and Ichijo Hodaka. "Using Square Wave Input for Wireless Power Transfer." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 1 (2016): 431. http://dx.doi.org/10.11591/ijece.v6n1.9039.

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A wireless power transfer (WPT) circuit is composed of a transmitting circuit with an AC power supply and a receiving circuit with a load, and the circuits are wirelessly connected each other. Then a designer chooses the wave form of the AC power supply. Many papers about WPT adopt a sinusoidal wave as the input. The frequency of the sinusoidal wave is generally determined to the resonant frequency of the circuit for high power transfer. Since the number of circuit elements in the power supply to generate a square wave is much less than that of a sinusoidal wave, WPT with a square wave input s

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Lalas, Antonios X., Nikolaos V. Kantartzis, and Theodoros D. Tsiboukis. "Metamaterial-based wireless power transfer through interdigitated SRRs." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 35, no. 4 (2016): 1338–45. http://dx.doi.org/10.1108/compel-09-2015-0318.

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Purpose – Wireless power transfer (WPT) is deemed as an emerging technology with exciting applications, like wireless charging devices, and electric vehicles, whereas metamaterials exhibit exceptional properties. For every WPT system that occupies coupled magnetic resonances, it is also mandatory to involve resonators. The purpose of this paper is to introduce a new interdigitated split-ring resonator (I-SRR) as the basic part of a WPT system, pursuing advanced levels of efficiency. Design/methodology/approach – A novel WPT system, which exploits I-SRRs as its elementary blocks, is comprehensi

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Liu, Wei, K. Chau, W. Lam, and Zhen Zhang. "Continuously Variable-Frequency Energy-Encrypted Wireless Power Transfer." Energies 12, no. 7 (2019): 1286. http://dx.doi.org/10.3390/en12071286.

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This paper proposes and implements a novel continuously variable-frequency energy-encrypted wireless power transfer (WPT) system for wireless energy security in multi-receiver applications. To prevent wireless energy from being illegally stolen, the proposed chaotic 2-D frequency-and-duration encryption (FDE) technology directly generates well-defended security keys to guarantee energy security. An LCC-compensated transmitter without using a switched-capacitor array is proposed to competently encrypt the wireless energy into burglarproof energy packages, which are decrypted only by authorized

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Liang, Jiajing. "Benchmarking of cutting-edge wireless power transfer for electric vehicles." Applied and Computational Engineering 10, no. 1 (2023): 240–49. http://dx.doi.org/10.54254/2755-2721/10/20230184.

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Wireless power transfer (WPT), which can transfer energy though magnetic field, electronic field, laser beam, microwave and other methods without wire, provide electric vehicles (EVs) a better prospect. Compared to cars with internal combustion engines, Electric vehicles are more environmental-friendly, and do not need any fossil fuel, which is a ideal transportation in the future, however, for electric vehicles, battery technology is the major barrier: high cost, low energy density and large weight, which make electric vehicles very expensive and difficult to improve the endurance mileage, by

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Xu, Yuanzhong, Yuxuan Zhang, and Tiezhou Wu. "Wireless Power Transfer Efficiency Optimization Tracking Method Based on Full Current Mode Impedance Matching." Sensors 24, no. 9 (2024): 2917. http://dx.doi.org/10.3390/s24092917.

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Wireless power transfer (WPT) technology is a contactless wireless energy transfer method with wide-ranging applications in fields such as smart homes, the Internet of Things (IoT), and electric vehicles. Achieving optimal efficiency in wireless power transfer systems has been a key research focus. In this paper, we propose a tracking method based on full current mode impedance matching for optimizing wireless power transfer efficiency. This method enables efficiency tracking in WPT systems and seamless switching between continuous conduction mode and discontinuous mode, expanding the detectio

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Woo, Hwajin, Jang-Hyun Park, Changdae Joo, Hokyun Ahn, Dohyun Kang, and Taekue Kim. "Analysis of the Transformer Characteristics for an Integration System with a Wireless Power Transfer Device and Linear Motor." Energies 14, no. 20 (2021): 6769. http://dx.doi.org/10.3390/en14206769.

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This paper proposed the transformer characteristic analysis method for the wireless power transfer (WPT) device and linear motor (LM) integration system that can be applied to industrial cleanroom transfer systems. A cable is required to supply the power in conventional systems. In comparison, the proposed system utilizes a WPT device that can simplify power transfers and make a better space utilization. The shape of the wireless power transmission system is proposed along with the discussion of the 2D FEA analysis method about the inductance analyzing method, which are important parameters in

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Zheng, Yunfei, Zhijian Hu, Zhongyu Dai, et al. "Passive Wireless Measurement System Based on Wireless Power Transfer Technology." Electronics 8, no. 9 (2019): 1048. http://dx.doi.org/10.3390/electronics8091048.

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This paper presents a passive wireless measurement system based on wireless power transfer (WPT) technology. It does not require separate information and power transmission circuits. The data receiver only needs to send a short signal to the data collector through WPT, and then the information of the measured environment can be obtained by analyzing the feedback signal from the data collector. Three concepts are included in this system, namely (1) the constant oscillation period of oscillation attenuation waveforms; (2) the characteristics of inductive coupling WPT; and (3) the relationship be

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Ijemaru, Gerald K., Kenneth L. M. Ang, and Jasmine K. P. Seng. "Mobile Collectors for Opportunistic Internet of Things in Smart City Environment with Wireless Power Transfer." Electronics 10, no. 6 (2021): 697. http://dx.doi.org/10.3390/electronics10060697.

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In the context of Internet of Things (IoT) for Smart City (SC) applications, Mobile Data Collectors (MDCs) can be opportunistically exploited as wireless energy transmitters to recharge the energy-constrained IoT sensor-nodes placed within their charging vicinity or coverage area. The use of MDCs has been well studied and presents several advantages compared to the traditional methods that employ static sinks. However, data collection and transmission from the hundreds of thousands of sensors sparsely distributed across virtually every smart city has raised some new challenges. One of these co

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Rohit, Choubey, Pakhare Aakash, Raj Atul, et al. "Wireless Charging System for Electric Vehicle." Advancement of Signal Processing and its Applications 4, no. 2 (2021): 1–5. https://doi.org/10.5281/zenodo.5031263.

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<em>Wireless power transfer is popular and most recent technology which is gaining its importance for various application in various field. In wireless power transfer power is transferred from source to electrical load without any physical wiring. WPT is useful where physical wiring is inconvenient. The basic principle of WPT is mutual induction. This paper deals with wireless transmission techniques for charging the electric vehicle. Further wireless charging in E-Bike system. In this paper we have used inductive power transfer technique for charging electric vehicle. The system deals with so

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الرتيمي, عصام أمحمد, هيثم عبد الله شابالة, نجاة محمد السايح та الصادق أمحمد عكره. "تصميم منظومة نقل الطاقة الكهربائية لاسلكيا بإستخدام نظرية الاقتران الحثي". International Science and Technology Journal 36, № 1 (2025): 1–14. https://doi.org/10.62341/ehan1115.

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Wireless power transmission (WPT) is the efficient transfer of electrical energy from one point to wirelessly. This can be used for applications where instantaneous or continuous power delivery is required. The objective of this paper is to design and build a wireless electrical power transmission through space and charging of low-power devices. This system will work by using resonant coils to transfer power from an AC line to a resistive load. The Power can be transmitted using short-range inductive coupling, medium-range resonant induction, and high-range electromagnetic wave power transmiss

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Prince and Dr. Vipin Kumar. "Wireless power transfer for electric vehicles : Design and efficiency analysis." Universal Research Reports 12, no. 2 (2025): 35–45. https://doi.org/10.36676/urr.v12.i2.1513.

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Wireless Power Transfer (WPT) could make EV charging safer and more efficient by replacing physical connections. Electric car WPT system design and efficiency are the subject of this article. The implications of misalignment on coil topologies, resonance coupling, and charging efficiency are examined. After thorough computation and experimental validation, we provide a best WPT design that minimizes losses, improves energy transfer efficiency, and operates well in practice. WPT may speed up EV charging, according to study. We evaluate current and proposed methods to increase electric vehicle w

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Barmada, Sami, Mauro Tucci, Nunzia Fontana, Wael Dghais, and Marco Raugi. "Design and Realization of a Multiple Access Wireless Power Transfer System for Optimal Power Line Communication Data Transfer." Energies 12, no. 6 (2019): 988. http://dx.doi.org/10.3390/en12060988.

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In this contribution, the authors evaluate the possibility of using separated access points for power and data transfer in a coupled Wireless Power Transfer-Powerline Communication system. Such a system has been previously proposed by the authors for specific applications, in which Wireless Power Transfer (WPT) should take place in a system where data are transmitted over the power grid. In previous works the authors have performed lab tests on a two coils WPT system equipped with a set of filters to also allow an efficient data transfer. When a multiple coil WPT system is chosen, additional p

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Yusri, Muhammad Sukriyllah, Mohamad Harris Misran, Maizatul Alice Meor Said, et al. "Transfer Efficiency Enhancement using Double Negative Metamaterial in Wireless Power Transfer System." International Journal of Electrical and Electronics Research 13, no. 1 (2025): 30–36. https://doi.org/10.37391/ijeer.130105.

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Recently, there have been a lot of inventions and development in the field of wireless power transfer (WPT), which has increased the need for WPT systems with high power transfer efficiency (PTE) and longer transmission distances for end users. However, several of the presently accessible WPT systems exhibit restricted PTE and transmission range as a result of their utilization of inductive coupling. In addition, the PTE experiences a significant decline as the separation between the transmitter and receiver coils grows while employing this methodology. Hence, this study presents a proposal fo

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Saha, Orpita, Binh Duc Truong, and Shad Roundy. "A review of wireless power transfer using magnetoelectric structures." Smart Materials and Structures 31, no. 11 (2022): 113001. http://dx.doi.org/10.1088/1361-665x/ac9166.

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Abstract Wireless power transfer (WPT) has received increasing attention primarily as a means of recharging batteries in the last few decades. More recently, magnetoelectric (ME) structures have been investigated as alternative receiving antennas in WPT systems. ME structures can be particularly useful for small scale devices since their optimal size is much smaller than traditional receiving coils for a given operating frequency. WPT systems using ME laminate receivers have been shown to be helpful in wirelessly powering various sensors and biomedical implants. In recent years, a large number

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Haerinia, Mohammad, and Reem Shadid. "Wireless Power Transfer Approaches for Medical Implants: A Review." Signals 1, no. 2 (2020): 209–29. http://dx.doi.org/10.3390/signals1020012.

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Wireless power transmission (WPT) is a critical technology that provides an alternative for wireless power and communication with implantable medical devices (IMDs). This article provides a study concentrating on popular WPT techniques for IMDs including inductive coupling, microwave, ultrasound, and hybrid wireless power transmission (HWPT) systems. Moreover, an overview of the major works is analyzed with a comparison of the symmetric and asymmetric design elements, operating frequency, distance, efficiency, and harvested power. In general, with respect to the operating frequency, it is conc

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Saat, S., O. Z. Guat, F. K. Abdul Rahman, A. A. Isa, and A. M. Darsono. "Development of Wireless Power Transfer using Capacitive Method for Mouse Charging Application." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 2 (2016): 460. http://dx.doi.org/10.11591/ijpeds.v7.i2.pp460-471.

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Wireless power transfer (WPT) is a non-contact power transfer within a distance. With the advantage of not-contact concept, WPT enhances the flexibility movement of the devices. Basically, there are three types of the WPT which are inductive power transfer (IPT), Capacitive Power Transfer (CPT) and Acoustic Power Transfer (APT). Among these, capacitive power transfer (CPT) has the advantages of confining electric field between coupled plates, metal penetration ability and also the simplicity in circuit topologies. Therefore, we focus on the capacitive method in this paper. To be specific, this

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Cho, Jung-Hoon, Byoung-Hee Lee, and Young-Joon Kim. "Maximizing Transfer Efficiency with an Adaptive Wireless Power Transfer System for Variable Load Applications." Energies 14, no. 5 (2021): 1417. http://dx.doi.org/10.3390/en14051417.

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Electronic devices usually operate in a variable loading condition and the power transfer efficiency of the accompanying wireless power transfer (WPT) method should be optimizable to a variable load. In this paper, a reconfigurable WPT technique is introduced to maximize power transfer efficiency in a weakly coupled, variable load wireless power transfer application. A series-series two-coil wireless power network with resonators at a frequency of 150 kHz is presented and, under a variable loading condition, a shunt capacitor element is added to compensate for a maximum efficiency state. The s

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Pham, Thanh Son, Xuan Khuyen Bui, Son Tung Bui, Thi Hong Hiep Le, and Dinh Lam Vu. "A critical review on wireless power transfer systems using metamaterials." Vietnam Journal of Science and Technology 60, no. 4 (2022): 587–613. http://dx.doi.org/10.15625/2525-2518/16954.

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Recently, wireless power transfer (WPT) has been a topic of interest due to its attractive applications in modern life. Starting from Tesla’s idea about a century ago, WPT has developed tremendously and appeared in many of the most modern electronic devices. However, some WPT systems still have limitations such as short transmission distance, low transfer efficiency, and electromagnetic leakage. Magnetic metamaterial (MM) is a potential candidate that can overcome the above disadvantages of WPT. This paper is intended to present an overview of recent advances and research progress on WPT syste

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Khan, Sadeque Reza, Sumanth Kumar Pavuluri, Gerard Cummins, and Marc P. Y. Desmulliez. "Wireless Power Transfer Techniques for Implantable Medical Devices: A Review." Sensors 20, no. 12 (2020): 3487. http://dx.doi.org/10.3390/s20123487.

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Wireless power transfer (WPT) systems have become increasingly suitable solutions for the electrical powering of advanced multifunctional micro-electronic devices such as those found in current biomedical implants. The design and implementation of high power transfer efficiency WPT systems are, however, challenging. The size of the WPT system, the separation distance between the outside environment and location of the implanted medical device inside the body, the operating frequency and tissue safety due to power dissipation are key parameters to consider in the design of WPT systems. This art

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Chen, Yichi, Wangqiang Niu, Yanhua Yang, and Yassine Amirat. "Experimental Results and Analysis of Midrange Underwater Asymmetric Wireless Power Transfer." Journal of Marine Science and Engineering 12, no. 4 (2024): 567. http://dx.doi.org/10.3390/jmse12040567.

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The eddy current loss caused by the conductivity of seawater results in a relatively low transfer efficiency of underwater wireless power transfer (WPT). And the transfer distance of the current WPT system is relatively short. Considering that most of the wireless power transfer devices in practical applications are asymmetric, few studies have explored the transfer characteristics of asymmetric midrange WPT in seawater. In this study, it is experimentally found that the load voltage and transfer efficiency of an asymmetric midrange WPT system with reduced primary balancing resistance in seawa

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Zhu, Zhenghao, Huan Yuan, Renjie Zhang, Aijun Yang, Xiaohua Wang, and Mingzhe Rong. "Parity–Time Symmetric Model and Analysis for Stable Multi-Load Wireless Power Transfer." World Electric Vehicle Journal 12, no. 4 (2021): 226. http://dx.doi.org/10.3390/wevj12040226.

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A noticeable challenge for a multi-load wireless power transfer system is to achieve stable power transfer under a dynamic change in coupling conditions. It was proposed that the parity–time symmetric wireless power transfer (PT-WPT) system can achieve stable output efficiency for a single receiver when tuned at the purely real eigenfrequency. However, in the case of higher order, PT symmetric systems usually cannot maintain the real eigenfrequency. To address the issue, a high-order PT-WPT model was established using coupled mode theory (CMT) theory in this paper, and the eigenfrequency of th

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Eidaks, Janis, Romans Kusnins, Ruslans Babajans, Darja Cirjulina, Janis Semenjako, and Anna Litvinenko. "Efficient Multi-Hop Wireless Power Transfer for the Indoor Environment." Sensors 23, no. 17 (2023): 7367. http://dx.doi.org/10.3390/s23177367.

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With the rapid development of the Internet of Things (IoT) and wireless sensor networks (WSN), the modern world requires advanced solutions for the wireless powering of low-power autonomous devices. The present study addresses the wireless power transfer (WPT) efficiency problem by exploiting a multi-hop concept-based technique to increase the received power at the end sensor node (ESN). The current work adopts efficient multi-hop technology from the communications field to examine its impact on WPT performance. The investigation involves power transfer modeling and experimental measurements i

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Hayes, Steve. "Transfer Talks." Consumer Electronics Test & Development 2023, no. 1 (2023): 42–43. http://dx.doi.org/10.12968/cetd.2023.2023.1.42.

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Chen, Siqi. "Recent Advances in Wireless Power Transfer Technologies for Electric Vehicles." Highlights in Science, Engineering and Technology 76 (December 31, 2023): 181–87. http://dx.doi.org/10.54097/g289q610.

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With the advancement of innovative technology in the contemporary world, wireless power transfer technology is also playing an increasingly important role in electric vehicles. In the past, there did not have enough electric products and spaces to apply to this wireless charging technology so the use of it by humans is limited to some levels of understanding of the technology, such as one or two technical classifications contained in wireless power transfer (WPT). However, people have more in-depth research on convey of power wirelessly and charging for the electric vehicle nowadays. By reason

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Dang-ba, Hanh, and Gyung-su Byun. "A Sub-THz Wireless Power Transfer for Non-Contact Wafer-Level Testing." Electronics 9, no. 8 (2020): 1210. http://dx.doi.org/10.3390/electronics9081210.

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In this paper, a sub-THz wireless power transfer (WPT) interface for non-contact wafer-level testing is proposed. The on-chip sub-THz couplers, which have been designed and analyzed with 3-D EM simulations, could be integrated into the WPT to transfer power through an air media. By using the sub-THz coils, the WPT occupies an extremely small chip size, which is suitable for future wafer-testing applications. In the best power transfer efficiency (PTE) condition of the WPT, the maximum power delivery is limited to 2.5 mW per channel. However, multi-channel sub-THz WPT could be a good solution t

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Zhang, Yiming. "Design of High-Power Static Wireless Power Transfer via Magnetic Induction: An Overview." CPSS Transactions on Power Electronics and Applications 6, no. 4 (2021): 281–97. http://dx.doi.org/10.24295/cpsstpea.2021.00027.

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Recent years have witnessed the booming development of wireless power transfer (WPT) via magnetic induction, which has the advantages of convenience, safety, and feasibility to special occasions. WPT can be applied to electric vehicles and ships, where high-power WPT technology is required to shorten the charging time with the increasing battery capacity. This paper reviews the state-of-the-art development of high-power static WPT systems via magnetic induction. Selected prototypes and demos of high-power WPT systems are demonstrated with key transfer characteristics and solutions. Theoretical

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