Articles with "wpt systems" as a keyword



Increasing the robustness of electrodynamic WPT systems with hybrid electromechanical transduction

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Published in 2024 at "Smart Materials and Structures"

DOI: 10.1088/1361-665x/ad1baa

Abstract: In this paper, we compare the electrical damping capability of low-frequency electrodynamic wireless power transmission (EWPT) systems based on a resonant electromechanical receiver in the context of increasing their mechanical robustness. This study is carried… read more here.

Keywords: transduction; increasing robustness; electrodynamic wpt; receiver ... See more keywords

PDM-Based Feedforward Power Compensation for FMPSK Communication in WPT Systems

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Published in 2022 at "IEEE Transactions on Circuits and Systems II: Express Briefs"

DOI: 10.1109/tcsii.2022.3144220

Abstract: A wireless power transfer (WPT) system usually needs dual-side cooperated control for efficiency optimization and power regulation, and requires wireless communication between the transmitter and the receiver. Phase shift keying (PSK) communication is a good… read more here.

Keywords: feedforward power; communication; power; based feedforward ... See more keywords

Quantifying the Impact of Slow Wave Factor on Closed-Loop Defect-Based WPT Systems

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Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2022.3181938

Abstract: This article reports the impact of the slow wave effect (SWE) on the design, analysis, and performance of defected ground structure (DGS)-based resonators and the associated wireless power transfer (WPT) systems. As a case study,… read more here.

Keywords: dgs; impact slow; slow wave; wpt systems ... See more keywords

Coupling Matrix Synthesis and Impedance-Matching Optimization Method for Magnetic Resonance Coupling Systems

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Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2017.2741963

Abstract: The general coupling matrix representation of bandpass filter (BPF) circuits is a widely used technique that has simplified the analysis and optimization of complex microwave filters. In this paper, we demonstrate a novel application of… read more here.

Keywords: coupling matrix; wpt systems; impedance matching; optimization ... See more keywords

Power Stabilization Based on Efficiency Optimization for WPT Systems With Single Relay by Frequency Configuration and Distribution Design of Receivers

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Published in 2017 at "IEEE Transactions on Power Electronics"

DOI: 10.1109/tpel.2016.2626498

Abstract: The operation of wireless power transfer systems (WPT) with a single relay, which could charge one or multiple receivers simultaneously, is investigated. Besides, a new method for ensuring the optimized transfer efficiency and the output… read more here.

Keywords: single relay; frequency; wpt systems; power ... See more keywords

Stability Improvement of Transmission Efficiency Based on a Relay Resonator in a Wireless Power Transfer System

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Published in 2017 at "IEEE Transactions on Power Electronics"

DOI: 10.1109/tpel.2017.2651155

Abstract: We investigate the stability of the transmission efficiency (TE) in nonradiative wireless power transfer (WPT) using a relay resonator. An equivalent circuit model is used to show mathematically that two suppositions are satisfied in an… read more here.

Keywords: wireless power; wpt systems; based wpt; transmission efficiency ... See more keywords

A New Controller for Bidirectional Wireless Power Transfer Systems

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Published in 2018 at "IEEE Transactions on Power Electronics"

DOI: 10.1109/tpel.2017.2785365

Abstract: Wireless power transfer (WPT) is a promising technology for supplying power to various applications with no physical contacts. Recently, bidirectional WPT (BD-WPT) systems are gaining popularity for grid-to-vehicle and vehicle-to-grid applications which essentially require power… read more here.

Keywords: wireless power; wpt systems; power transfer; power ... See more keywords

Compatibility and Performance Improvement of the WPT Systems Based on Q-Learning Algorithm

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Published in 2024 at "IEEE Transactions on Power Electronics"

DOI: 10.1109/tpel.2024.3397804

Abstract: Different kinds of compensation topologies are widely used in wireless power transfer (WPT) systems, resulting in loads with different compensation topologies hardly obtaining the same power from the same power transmitter. In addition, the load… read more here.

Keywords: compatibility performance; load; learning algorithm; wpt systems ... See more keywords

Selected-Interharmonic-Injected Pulse Density Modulation for One-to-Many WPT Systems

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Published in 2024 at "IEEE Transactions on Power Electronics"

DOI: 10.1109/tpel.2024.3402209

Abstract: Multifrequency one-to-many wireless power transfer (O2M-WPT) is advantageous for charging various medium- and small-power loads, offering cost-effectiveness, simplicity, and minimal cross-coupling effects. However, inevitable hard switching caused by the multifrequency modulation method may lead to… read more here.

Keywords: wpt systems; pulse density; one many; modulation ... See more keywords

Dynamic Performance Improvement Method for Buck Converters With Small Input Capacitors in WPT Systems Based on Voltage Feedforward Active Damping Control

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Published in 2025 at "IEEE Transactions on Power Electronics"

DOI: 10.1109/tpel.2025.3579962

Abstract: In wireless power transfer (WPT) systems, a right-half-plane zero (RHPz) will be indicated in the receiver Buck converter’s control-to-output transfer function when the receiving end uses a compensating network with current source characteristics. The transient… read more here.

Keywords: control; active damping; performance; wpt systems ... See more keywords

Comparative Analysis and Design of the Shielding Techniques in WPT Systems for Charging EVs

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Published in 2019 at "Energies"

DOI: 10.3390/en12112115

Abstract: Wireless power transfer (WPT) systems for charging Electric Vehicles (EVs) have gained extensive attention due to their many advantages. However, human exposure to electromagnetic fields (EMFs) has become a serious concern in high-power cases. In… read more here.

Keywords: shielding techniques; design shielding; comparative analysis; systems charging ... See more keywords