Optimal Position of the Intermediate Coils in a Magnetic Coupled Resonant Wireless Power Transfer System

Yang, Dongsheng; Tian, Jiangwei; Won, Sokhui; Zhou, Bowen; Cheng, Zhiguang; Hu, Bo

doi:10.3390/en12203991

Cited by 3 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To solve this problem, a number of approaches have been proposed. These approaches are mainly focused on designing new coil, modifying circuit topology, and adding relay coils 8–10 . Alternatively, metamaterial also provides a solution for performance enhancement.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A metamaterial‐incorporated wireless power transmission system for efficiency enhancement

Wang

Guo

Shi

et al. 2023

Circuit Theory & Apps

View full text Add to dashboard Cite

Summary In this paper, an efficient wireless power transmission (WPT) system that incorporates a new negative permeability metamaterial is presented. The operating principle of the metamaterial with negative permeability is first analyzed. To improve transmission efficiency of the WPT system at the operating frequency of 13.56 MHz, a new metamaterial with three open rings is designed. By respectively placing a single metamaterial slab and double metamaterial slabs at different positions between transmitting coil and receiving coil, the performance of the proposed WPT system is evaluated by simulation work. The corresponding magnetic field distribution is also analyzed. Besides, comparison is made with the conventional WPT system without metamaterial. It is found that transmission efficiency of the proposed WPT system is obviously improved when incorporating the metamaterial since the designed metamaterial effectively focuses magnetic field towards the receiving coil. Comparing with the conventional system, the results also show that the proposed WPT system is more robust to lateral and angular misalignment of the receiving coil. With the designed metamaterial, it is found that the proposed system with double metamaterial slabs performs better than that with a single metamaterial slab.

show abstract

Section: Introductionmentioning

confidence: 99%

“…These approaches are mainly focused on designing new coil, modifying circuit topology, and adding relay coils. [8][9][10] Alternatively, metamaterial also provides a solution for performance enhancement. Unlike conventional materials, metamaterial is artificial electromagnetic structure with unusual properties of negative or near-zero permeability.…”

mentioning

confidence: 99%