An Impedance Mapping-Based T-Compensation Network and Control Strategy for WPT System With Full-Bridge Active Rectifier

Lu, Siyuan; Böttigheimer, Mike; Parspour, Nejila

doi:10.1109/tpel.2023.3294438

Cited by 6 publications

(1 citation statement)

References 37 publications

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“…Additionally, a varactor diode [13,14] , voltage variable capacitor [15][16][17], or negative impedance circuit [18] is widely used owing to its high-frequency capability, small size, and full electric control, but has poor high-power handling. For power-electronics-based technology, an active reactance circuit [19][20][21][22][23][24][25][26] or active rectifier [27][28][29][30][31] is used for power factor compensation, which has superior high-power handling, but a lower frequency limit. The use of a DC-DC converter [32] and applying maximumpower point tracking [33][34][35][36][37][38] can adjust the real part of the input impedance; however, since the control is in the DC part, complex conjugate matching can not be realized.…”

Section: Introductionmentioning

confidence: 99%

RF-DC conversion circuit using quadrature hybrid for complex maximum power point tracking

Tanahashi,

Hirayama

2024

IEICE Electron. Express

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This paper proposes the concept of a complex maximum power point tracking (MPPT) circuit for adaptive conjugate impedance matching of wireless power transfer. The proposed circuit consists of an orthogonal power distribution circuit using quadrature hybrid and two rectifier circuits and DC-DC converters. By controlling the input impedance of two DC-DC converters, the complex impedance of RF input can be varied to satisfy complex conjugate matching. This circuit enables high-power and high-frequency handling for matching circuits because no variable device is used in the RF region, and control is done in the DC region. Measurements at 433 MHz confirm that complex impedance in the RF region can be controlled by adjusting the two real impedances.

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Section: Introductionmentioning

confidence: 99%

RF-DC conversion circuit using quadrature hybrid for complex maximum power point tracking

Tanahashi,

Hirayama

2024

IEICE Electron. Express

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A Comprehensive Review on Efficiency Enhancement of Wireless Charging System for the Electric Vehicles Applications

Ramakrishnan,

et al. 2024

IEEE Access

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The increasing Electric Vehicle (EV) market is driven by the desire for more efficient and reliable approaches to recharge EV batteries. Among various charging methodologies for EVs, Wireless Power Transfer (WPT) has gained more attention from EV users due to its features such as safety, low maintenance, comfort, automated operation, and reliability. The innovative WPT method replaces the conductive charging system while maintaining a similar power rating and efficiency. Numerous strategies have been devised to enhance the efficiency and reliability of the WPT model. The primary challenge in WPT is reduction in power transfer efficiency (PTE) as the gap between the coils is increased. Also, the improvement in the PTE depends on various design parameters of the WPT circuit. Therefore, this review article thoroughly investigates recent significant research literatures that explains WPT technology and tailored towards enhancement of PTE. The investigation is carried on various coil configurations, converter topologies and different critical factors to improve PTE such as impedance matching, compensation techniques. Moreover, the research gaps in WPT technology and future scope suitable for static, quasidynamic, and dynamic charging methods are presented. This research can play a crucial role in assisting developers in selecting an optimal design to enhance the WPT system.

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Measurement of Inductive Power Transfer Coupling Pad Stress by Reconfiguring the Double-Sided-LCC Topology in a Limited Laboratory Environment

Jo,

Li,

Xie

et al. 2024

IEEE Open J. Power Electron.

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An Impedance Mapping-Based T-Compensation Network and Control Strategy for WPT System With Full-Bridge Active Rectifier

Cited by 6 publications

References 37 publications

RF-DC conversion circuit using quadrature hybrid for complex maximum power point tracking

RF-DC conversion circuit using quadrature hybrid for complex maximum power point tracking

A Comprehensive Review on Efficiency Enhancement of Wireless Charging System for the Electric Vehicles Applications

Measurement of Inductive Power Transfer Coupling Pad Stress by Reconfiguring the Double-Sided-LCC Topology in a Limited Laboratory Environment

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