A Multimodal Modulation Scheme for Electric Vehicles' Wireless Power Transfer Systems, Based on Secondary Impedance

Article Engineering, Electrical & Electronic

Single stage AC-DC converter for wireless power transfer operating within wide voltage control range

Min-Ji Kim et al.

Summary: A wireless power transfer charging system using a single-stage AC-DC converter has been proposed in this paper, which can control a wide output voltage range and improve the input power factor and total harmonic distortion.

JOURNAL OF POWER ELECTRONICS (2021)

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Article Engineering, Electrical & Electronic

Multiobjective Optimization of Inductive Power Transfer Double-D Pads for Electric Vehicles

Zhichao Luo et al.

Summary: This article proposes a multiobjective optimization method for improving the design of primary double-D pad in inductive power transfer systems. Optimization is performed through parametric sweep and genetic algorithms to balance coupling coefficient and minimize stray leakage magnetic fields. Design guidelines are extracted from optimization results, and the effectiveness of the optimized structures is validated through experimental setups.

IEEE TRANSACTIONS ON POWER ELECTRONICS (2021)

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Article Engineering, Electrical & Electronic

Design and Optimization of an Electric Vehicle Wireless Charging System Using Interleaved Boost Converter and Flat Solenoid Coupler

Yousu Yao et al.

Summary: The article introduces an electric vehicle wireless charging system using an interleaved boost converter and flat solenoid coupler, achieving closed-loop control between the primary and secondary through duty cycle adjustment and reducing currents and losses. A parameter optimization method is proposed for optimal performance, with a laboratory prototype demonstrating constant output voltage even with misalignment and a system efficiency of 90.1% at a power transfer distance of 170mm.

IEEE TRANSACTIONS ON POWER ELECTRONICS (2021)

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Article Computer Science, Information Systems

Novel Electrical Modeling, Design and Comparative Control Techniques for Wireless Electric Vehicle Battery Charging

Adel El-Shahat et al.

Summary: This paper examines modeling and control for dynamic wireless charging using magnetic resonance coupling, with a focus on high efficiency. The study used ANSYS Maxwell and ANSYS Simplorer for the design and optimization of magnetic resonance wireless power system, achieving an efficiency of around 92.1%.

ELECTRONICS (2021)

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Article Engineering, Electrical & Electronic

A High-Efficiency ZVS Wireless Power Transfer System for Electric Vehicle Charging WithVariable Angle Phase Shift Control

Yongbin Jiang et al.

Summary: This article presents a high-efficiency wireless power transfer system for electric vehicle chargers, utilizing H-bridge converters and an active rectifier to achieve zero-voltage switching and accurate current/voltage regulation. The system efficiency is further enhanced without increasing additional costs and complexity, through power loss analysis and a noncommunication double-loop control strategy.

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS (2021)

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Article Energy & Fuels

Simultaneous Wireless Power and Information Transfer Based on Phase-Shift Modulation in ICPT System

Chenyang Xia et al.

Summary: This paper introduces a high-performance signal transmission technology utilizing phase-shift modulation in ICPT system for SWPIT. By adjusting the phase angle of the inverter, harmonic current is used for signal transmission while ensuring stable wireless power transfer, demonstrating signal transmission rate up to 6 kbps and output voltage fluctuation less than 3%.

IEEE TRANSACTIONS ON ENERGY CONVERSION (2021)

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Article Engineering, Electrical & Electronic

Multi-Frequency Multi-Amplitude Superposition Modulation Method With Phase Shift Optimization for Single Inverter of Wireless Power Transfer System

Jie Wu et al.

Summary: This paper proposes a multi-frequency multi-amplitude superimposition modulation method to solve the compatibility and low utilization rate of DC voltage in wireless charging devices. By adjusting the initial phase of each frequency, the utilization rate of DC voltage is significantly improved by 44.88%.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS (2021)

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Article Energy & Fuels