Reconfigurable WPT system for load‐independent CC and CV output with transmitting‐side control

Ravikiran, Vaka; Keshri, Ritesh Kumar

doi:10.1049/iet-epa.2019.0406

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…To ensure precise compensation, the switches must be equipped with a detector and controller, despite applying the linear components [62][63][64]. Moreover, the potential communication delay and interruption issues will result in unreliability for tolerating the coil misalignment and load variations [65][66][67][68][69][70]. The control strategies will be discussed in Section 4.…”

Section: Reconfigurable Topologiesmentioning

confidence: 99%

High-Order Compensation Topology Integration for High-Tolerant Wireless Power Transfer

et al. 2023

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Wireless power transfer (WPT) has been a promising way to transfer power wirelessly over certain distances through the mutual inductance (MI) of the magnetically coupled transmitter and receiver coils, providing significant benefits of convenience, safety, and feasibility to special occasions. The stable output and efficiency cannot be maintained due to the load variation and the inevitable misalignment between the magnetic couplers. High-order compensation topologies that are highly flexible in design due to more compensation elements are essential for the WPT to suppress the load variation and misalignment effects. However, due to core loss and thermal management, high-power-level and high-frequency inductor design have always been challenging for WPT systems. Space occupation and cost are other aspects to be considered for inductor design. Thus integrating these additional bulky inductors into the main coils has been a critical trial. As a result, the compensation topologies’ original input and output profiles will change or even disappear. This paper reviews the existing high-order compensation topologies and their integration principles and implementation for the WPT to obtain high misalignment tolerance. The design objectives and challenges of the integrated compensation topology in terms of misalignment tolerance capability are discussed. The relevant control systems to cope with coil misalignment and load variations are investigated. Challenges and future development of the high-tolerant WPT are discussed.

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Section: Reconfigurable Topologiesmentioning

confidence: 99%

High-Order Compensation Topology Integration for High-Tolerant Wireless Power Transfer

et al. 2023

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“…Considering all these facts [19][20][21][22][23][24][25][26][27][28], this paper presents a detailed theoretical analysis and experimental verification of the dead-time effect on a WPT system in an inverter.…”

Section: Introductionmentioning

confidence: 99%

Dead-Time Effect in Inverters on Wireless Power Transfer

Rajs,

Herceg,

Despotović

et al. 2024

Electronics

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This paper presents a comprehensive analysis of the dead-time effects in wireless power transfer systems based on LCC-S topology. In these systems operating at high frequencies, the ratio of dead-time versus the operating period becomes critical, and the dead-time issue can cause certain problems regarding power quality, efficiency, and output voltage ripple. The impact of input quantities such as voltage and switching frequency on the efficiency and output power of the LCC-S-tuned WPT system was also investigated. The optimal combination of these parameters used to achieve the maximum efficiency for a target output power and to set the appropriate value of the dead time were determined by running multiple simulations using the MATLAB R2023b software platform. It was also shown that the output voltage remained unchanged with and without a load and up to 1200 ns of dead-time, which provides a simple implementation of the corresponding mathematical model. In the recommended interval of 600–1500 ns, the influence of the dead-time on the value of the output voltage amplitude is less than 10%. The validity of the proposed method was confirmed through the implementation of the experimental prototype, a 5 kW wireless power transmission system, and the obtained results were in accordance with the simulation results.

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A comprehensive review on advanced charging topologies and methodologies for electric vehicle battery

Khalid

Ahmad

Panigrahi

et al. 2022

Journal of Energy Storage

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Reconfigurable WPT system for load‐independent CC and CV output with transmitting‐side control

Cited by 5 publications

References 28 publications

High-Order Compensation Topology Integration for High-Tolerant Wireless Power Transfer

High-Order Compensation Topology Integration for High-Tolerant Wireless Power Transfer

Dead-Time Effect in Inverters on Wireless Power Transfer

A comprehensive review on advanced charging topologies and methodologies for electric vehicle battery

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