A General Maximum Energy Efficiency Tracking Scheme for Domino Wireless Power Transfer Systems With Quasi-Load-Independent Outputs

Wang, Kaiyuan; Zeng, Junming; Yang, Yun; Hui, Shu Yuen Ron

doi:10.1109/tpel.2023.3325307

Cited by 16 publications

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Detuning analysis and power tracking of dual‐ended resonant circuit based on improved variable‐step perturbation observation for wireless power transfer system

Li,

Luo,

Wang

et al. 2024

Circuit Theory & Apps

View full text Add to dashboard Cite

A power tracking method based on improved variable‐step perturbation observation approach has been proposed in this paper. This method is aimed at addressing the detuning issues caused by capacitor parameter drift in MCR‐WPT systems based on S‐S compensation circuits. Compared with traditional tuning methods, the proposed method has fast response, high accuracy, low complexity, and less prone to over‐tracking. Firstly, a mathematical model of the system based on the detuning factor has been established. Secondly, the impact of different detuning conditions on the system at the initial resonant frequency has been studied. Thirdly, the response characteristics of the system to different frequencies under different detuning conditions have been studied. Fourthly, based on the above researches, an improved variable‐step perturbation observation method based on the single‐step power drop factor has been proposed. Finally, an experimental platform was constructed, and relevant experiments were conducted. Experimental results validate the effectiveness of power tracking under different detuning conditions, with the lowest transmission efficiency being 81.51%.

show abstract

Detuning analysis and power tracking of dual‐ended resonant circuit based on improved variable‐step perturbation observation for wireless power transfer system

Li,

Luo,

Wang

et al. 2024

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

Analysis, Design, and Optimization of Segment‐Compensated PCB Coil for Multirelay Wireless Power Transfer System

Xia,

Shi,

Hou

2024

Circuit Theory & Apps

View full text Add to dashboard Cite

This paper proposed a segment‐compensated printed circuit board (PCB) coil for multirelay wireless power transfer (WPT) system. The PCB coil is designed with variable width to improve the system transfer efficiency, and the segmented compensation method is applied to avoid the high voltage stress on resonant capacitors in case of the multirelay WPT system with a low load resistance operating at a constant voltage frequency. The segmented compensation capacitors are integrated into the PCB coil, so as to constitute the compact coupler used in multirelay WPT system. The optimization procedure of the segment‐compensated PCB coil is also provided. The quality factor of the PCB coil can be improved by optimizing the proportional coefficients of width variation. The voltage of capacitors can be reduced by optimizing the number of segments. A physical variable‐width PCB coil with 3 segments is constructed. The experimental prototypes of the three‐coil, four‐coil, and five‐coil WPT systems are built. The experimental results show that the voltage of the segmented compensation capacitors on each coil is almost uniformly distributed and does not exceed 250 V when the input voltage is 50 V and the load resistance is 10 Ω. Compared with the multirelay WPT system using the equal‐width PCB coil, the multirelay WPT system using the PCB coil designed in this paper has higher output power and higher efficiency.

show abstract

Artificial Intelligence Assisted Adaptive Controller Design with Position Robustness in a GaN-based Wireless Power Transfer System

Li,

Sun,

Chen

et al. 2024

2024 IEEE 7th International Electrical and Energy Conference (CIEEC)

View full text Add to dashboard Cite

A General Maximum Energy Efficiency Tracking Scheme for Domino Wireless Power Transfer Systems With Quasi-Load-Independent Outputs

Cited by 16 publications

References 30 publications

Detuning analysis and power tracking of dual‐ended resonant circuit based on improved variable‐step perturbation observation for wireless power transfer system

Detuning analysis and power tracking of dual‐ended resonant circuit based on improved variable‐step perturbation observation for wireless power transfer system

Analysis, Design, and Optimization of Segment‐Compensated PCB Coil for Multirelay Wireless Power Transfer System

Artificial Intelligence Assisted Adaptive Controller Design with Position Robustness in a GaN-based Wireless Power Transfer System

Contact Info

Product

Resources

About