scholarly journals A Copper Foil Electromagnetic Coupler and Its Wireless Power Transfer System without Compensation

2021 ◽  
Vol 12 (4) ◽  
pp. 191
Author(s):  
Xueying Wu ◽  
Mingxuan Mao
Keyword(s):  
Copper Foil ◽  
Equivalent Circuit Model ◽  
Wireless Power Transfer ◽  
Circuit Model ◽  
Transfer System ◽  
Coupling Theory ◽  
Power Transfer ◽  
Wireless Power ◽  
Electrical Parameters ◽  
Wireless Power Transfer System

This paper proposes a copper foil electromagnetic coupler integrating inductance and capacitance and its wireless power transfer (WPT) system without additional compensation structure. Firstly, the equivalent circuit model of the integrated electromagnetic coupler is established, and the circuit model is simplified based on the circuit theory and mutual inductance coupling theory. The self-compensating characteristics of the coupler are utilized to analyze and design the relation between electrical parameters of the system, and the basic conditions of full resonance working of the system are given. The system’s performance is verified by simulation.

scholarly journals On the Asymptotic Behavior and Parameter Estimation of a Double-Sided LCC-Compensated Wireless Power Transfer System

Machines ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 287
Author(s):  
Feng-Rung Hu ◽  
Jia-Sheng Hu
Keyword(s):  
Parameter Estimation ◽  
Wireless Power Transfer ◽  
Circuit Model ◽  
Current Status ◽  
Transfer System ◽  
Wireless Charging ◽  
Power Transfer ◽  
Wireless Power ◽  
Charging System ◽  
Wireless Power Transfer System

This study investigates the statistic behavior and parameter estimation problems of a double-sided, LCC-compensated, wireless power transfer system. Based on the commonly used wireless charging circuit model, this study proposes a five-step parameter estimation method, which is applicable to automotive static wireless charging systems. The eight parameters in the circuit model of this study are the most important key components of the wireless charging system. The study also found that, under certain conditions, the statistic mode of wireless charging systems has a specific distribution. However, the current status of these eight components for wireless charging of electric vehicles will have complex parameter drift problems. These drift problems will deteriorate the performance of the vehicle power systems. This study probes these factors and proposes some related mathematical theories. The noted factors can be applied to the analysis of the wireless charging system and provide alternative solutions to explain the deteriorations from coil misalignments. Both simulations and experiments are given to show the evaluated issues of the proposed study.

Optimisation analysis of coil configuration and circuit model for asymmetric wireless power transfer system

2018 ◽  
Vol 12 (7) ◽  
pp. 1132-1139 ◽  
Author(s):  
Shengming Wang ◽  
Zhaoyang Hu ◽  
Cancan Rong ◽  
Conghui Lu ◽  
Xiong Tao ◽  
...  
Keyword(s):  
Wireless Power Transfer ◽  
Circuit Model ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Wireless Power Transfer System

scholarly journals Research on wireless power transfer system for Torpedo autonomous underwater vehicles

2018 ◽  
Vol 10 (9) ◽  
pp. 168781401880256
Author(s):  
Baowei Song ◽  
Yushan Wang ◽  
Kehan Zhang ◽  
Zhaoyong Mao
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Autonomous Underwater Vehicles ◽  
Impedance Matching ◽  
Equivalent Circuit Model ◽  
Wireless Power Transfer ◽  
Underwater Vehicle ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Wireless Power Transfer System

The wireless power transfer shows great potential in the future for its safety and convenience. Autonomous underwater vehicle is one of the important tools to explore and develop oceans. In this study, we develop and analyze a wireless power transfer system based on magnetic resonance coupling to charge the autonomous underwater vehicle underwater. We have adopted a way that energy transmission underneath the vehicle and the coils in the wireless power transfer system were proposed to obtain a higher mutual inductance based on the shape of the vehicle in this study. In addition, we analyze the equivalent circuit model and propose a kind of impedance matching network to maintain system security. The coils we used in the proposed system are 20 turns and their radii are 70 mm. The system works well with 100 W output and 72% efficiency.

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