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Wireless Power Transfer
Scopus
ISSN 2052-8418 · Maximum Academic Press · 54 articles in the index
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Journal Article
Research on diagnosis of open-circuit fault in power switch of WPT system based on DC bus voltage and switch driving signal
Wireless power transfer (WPT) technology finds extensive applications in areas such as powering deep-sea exploration equipment. However, due to harsh operating environments, core components such as power switches are prone to failure, leading to system malfunctions. To address system abnormalities…
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Journal Article
Research on constant voltage and constant current dual-load wireless power transfer system based on composite control method
Existing wireless power transfer (WPT) systems often fail to simultaneously achieve constant-voltage (CV) and constant-current (CC) outputs when charging multiple devices. To address this limitation, this paper proposes a dual-load WPT system with CV and CC characteristics. The system comprises a…
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Journal Article
High power density integrated wireless power transfer method for underwater intelligent sensors
This paper proposes a high-power-density integrated undersea wireless power transfer (UWPT) system for underwater intelligent sensors, which features anti-offset capability and electromagnetic shielding compatibility. Firstly, the high-frequency inverter designed for the UWPT system integrates…
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Journal Article
Autonomous pulse density modulation for parity-time-symmetric WPT system with flexible power regulation
Parity-time symmetric wireless power transfer (PT-WPT) systems exhibit fixed constant-power output, which fails to meet the power regulation requirements for applications such as drone wireless in-flight charging. To address this limitation, this paper proposes an autonomous pulse density…
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Journal Article
Design and performance analysis of rectangular coil applied to dynamic wireless power transfer using the finite element method
Electromobility is a key step in reducing our dependence on fossil fuels, whose resources are gradually depleting. By using renewable energy sources to recharge electric vehicles, we can reduce carbon emissions from the transport sector. However, battery storage capacity remains a challenge, making…
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Journal Article
Design of excitation current estimation algorithm for wireless excitation system of electrically excited motors based on S-N resonant topology
Although wireless excitation improves the reliability of electrically excited synchronous motors (EESMs), the rotor field current cannot be directly measured due to the rotation of the rotor. Using the widely adopted S-N topology as a representative framework, this paper reveals the prediction…
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Journal Article
Energy efficiency resource allocation for amplify and forward relaying system with energy harvesting
With the vigorous advocacy of green communication, research on energy harvesting technology in mobile communication resource allocation has become increasingly urgent. This paper studies the resource allocation problem of multi-relay energy harvesting systems. To improve the diversity gain of the…
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Journal Article
Energy harvesting assisted UAV sensing integrated system resource allocation
In the context of the deep integration of wireless communication and perception technology, this paper examines the resource allocation problem of an energy harvesting-assisted unmanned aerial vehicle (UAV) communication and perception integrated systems. Firstly, an energy harvesting-assisted UAV…
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Journal Article
Design of low-loss PCB Litz wire with planar spiral coil for wireless power transfer
Planar spiral coils in high-frequency wireless power transfer systems suffer from increased loss due to skin and proximity effects. The PCB Litz wire structure is proposed to suppress eddy current losses and improve the quality factor. Optimized design parameters are obtained through theoretical…
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Journal Article
Design and analysis of CPT system unmanned aerial vehicle applications
To address the limitations of conventional UAV charging methods, this paper presented a lightweight, high-efficiency, and high-power-density wireless charging system for unmanned aerial vehicles (UAVs) based on electric field coupling power transfer (ECPT) technology, which provides an effective…
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Journal Article
Design and implementation of a high-frequency inverter with wide soft-switching range for dynamic wireless charging of electric vehicles
To solve the problem that wireless power transfer (WPT) systems with multiple transmitters require more inverters and involve complex phase synchronization control between inverters, a dual-output zero-voltage switching (ZVS) inverter is proposed. It can generate two identical output voltages to…
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Journal Article
A magnetic coupling-based wireless power transfer system with automatic constant current–constant voltage charging
This paper presents a novel LCC primary compensation + series–series (S–S) secondary compensation multi-stage compensation topology to meet the requirement for self-adaptive switching between constant current (CC) and constant voltage (CV) modes in low-power wireless charging systems for inspection…
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Journal Article
Modeling and decoupling analysis for an integrated coupler and its non-compensated wireless power transfer system
A copper-foil electromagnetic coupler and its equivalent decoupled circuit model are developed in this paper to reduce the weight and cost of Wireless Power Transfer (WPT) systems, and improve system efficiency. The coupler consists of four stacked square spiral copper-foil coils, combining…
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Journal Article
Full-space magnetic coupling wireless power transfer system and magnetic energy control method
In response to the limitations of traditional magnetic coupling wireless power transfer (MC-WPT) systems in multi-degree-of-freedom spatial energy transmission, this paper proposes a full-space MC-WPT system based on a multi-node architecture. The system employs three-dimensional orthogonal coils…
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Journal Article
A single-wire power transmission system based on LCL resonant circuits
This paper presents a method to solve the problems of excessive system volume and security risks caused by the use of voltage-boosting devices in single-wire power transfer (SWPT) systems. The main contributions include putting forward the interpretation and understanding of the new SWPT principle…
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Journal Article
A hybrid topology wireless charging system for AGVs with strong anti-offset performance
When AGVs are parked for wireless charging, misalignment and offset between the transmitting and receiving coils are prone to occur, which affects the charging power and efficiency. To address this issue, this paper proposes a novel flat cross-shaped self-decoupling electromagnetic coupler for AGVs…
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Journal Article
Research on the design method of high isolation and low parasitic parameters for medium-voltage SiC MOSFET driver power supply using wireless power transfer
For medium-voltage SiC devices, there is a mutual restraint between the isolation capability and the coupling capacitance of the isolated gate drive power supply. It is the major bottleneck for structural compactness and insulation reliability. This paper innovatively proposes a loosely coupled…
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Journal Article
The deep learning algorithm for metal foreign body detection in wireless energy transmission system
This paper presents a metal foreign body detection method based on a Generative Adversarial Network (GAN). The proposed approach utilizes a generator to simulate the electromagnetic field distribution in an environment free of foreign bodies, while the discriminator is trained to differentiate…
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Journal Article
Adaptive CLC-S tuned DWPT system with overlapping coil magnetic coupler for output power fluctuation mitigation
In dynamic wireless power transfer (DWPT) systems employing transmitting (Tx) coil arrays, output power fluctuations aggravate battery charging current ripples and compromise system stability. To address this issue, this work proposes a CLC-S compensation topology based on a dual-input…
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Journal Article
Single-wire power transmission principle explanation and simulation analysis
To resolve controversies over the specific principle of single-wire power transmission (SWPT), this study innovatively confirms the indispensable role of the single wire and identifies scalar waves as the potential energy carrier through structural analysis and simulation. Starting from the typical…