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Your search keyword '"Huang, Xiutao"' showing total 35 results
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35 results on '"Huang, Xiutao"'

8. Development and prospects of metamaterial in wireless power transfer

Author

Cai Rufeng, Conghui Lu, Cong Lin, Huang Xiutao, Zhang Chunbo, and Fan Yang

Subjects
Physics, Development (topology), TK7800-8360, business.industry, Electrical engineering, Metamaterial, Physics::Optics, Wireless power transfer, Electrical and Electronic Engineering, Electronics, business, Physics::Classical Physics
Abstract

As a unique group of advanced artificial materials, metamaterials have found many interesting applications in various devices due to the ability to control electromagnetic fields. The metamaterial provides the prospect of new opportunities for the wireless power transfer (WPT) system to improve efficiency and reduce magnetic flux density. This review paper evaluates the performance of the WPT system with metamaterial from both principles and functions aspects. The objectives of this review include: (1) to present the research process and bottlenecks of metamaterial in the WPT system; (2) to clarify the design solution and checking method of the metamaterial and (3) to identify the challenges and opportunities based on the functional of the WPT system integration with metamaterial. Therefore, the process on metamaterial design, working principle of metamaterial, optimal method, equivalent model, and experimental method are reviewed. The recent efforts of the WPT system with metamaterial in efficiency enhancement, misalignments, magnetic field reduction are illustrated. Finally, the challenges and prospects of metamaterial based on the WPT system are concluded.

Published
2021

32. Analysis of wireless power transfer based on metamaterial using equivalent circuit.

Author

Rong, Cancan, Lu, Conghui, Hu, Zhaoyang, Huang, Xiutao, Tao, Xiong, Wang, Shengming, Wei, Bin, Wang, Songcen, and Liu, Minghai

Subjects
WIRELESS power transmission, METAMATERIALS, ELECTROMAGNETIC fields, NUMERICAL calculations, ELECTRIC lines, ELECTRIC circuits
Abstract

The metamaterial (MA) has been proved to enhance the efficiency of the wireless power transfer (WPT) system considerably in many studies. This study presents an equivalent circuit model using a qualitative and even quantitative simple explanation for the behaviour of MA in WPT. For this purpose, the electromagnetic field simulation of WPT system with MA is carried out by the high-frequency structure simulation three-dimensional electromagnetic simulator. Also, the authors propose the circuit structure of the WPT system based on MA and explore its characteristics by numerical calculation and advanced design system simulation. The transmission efficiency of the simulator is characterised by reflection coefficient here. Although some methods, such as interference theory, transmission line circuit model, and effective medium theory, have been put forward to explain the physics mechanism of WPT system with MA, some of reactive parameters and the basic physical interpretation have not been expounded clearly so far. Differ from the existing theoretical model, the proposed approach focuses on the effect of the system parameters of MA and transfer coils on the transfer characteristics and is beneficial to the analysis of the complicated system. [ABSTRACT FROM AUTHOR]

Published
2019
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33. Analysis and Optimized Design of Metamaterials for Mid-Range Wireless Power Transfer Using a Class-E RF Power Amplifier.

Author

Rong, Cancan, Tao, Xiong, Lu, Conghui, Hu, Zhaoyang, Huang, Xiutao, Zeng, Yingqin, and Liu, Minghai

Subjects
WIRELESS power transmission, POWER amplifiers, METAMATERIALS
Abstract

Featured Application: The proposed Wireless Power Transfer (WPT) system with metamaterials using Class-E amplifier can be applied for mid-range high-power energy transfer. In this paper, a mid-range wireless power transfer (WPT) system based on metamaterials (MMs) has been presented. It has been shown that the MMs are positioned in the WPT system to focalize the electromagnetic field for distance enhancement and efficiency improvement theoretically and experimentally. The MMs were fabricated by using a single layer printed-circuit board (PCB) with the negative magnetic permeability, μr. An applicable impedancetuning technology was implemented by changing the operating distance between the drive (load) resonator and the internal resonator, which can achieve the optimal load of the system. In addition, the Class-E RF (radio frequency) power amplifier is firstly proposed as the high frequency excitation source of the WPT system based on the MMs due to its simple design and high efficiency. The proposed technology can achieve efficiency improvements of 4.26% and 9.13% at distances of 100 cm and 200 cm around the 2.80 MHz WPT system with the MMs, respectively. Specially, it is worth mentioning that the system efficiency is enhanced by 18.58% at 160 cm. The measured results indicate the WPT system based on the MMs can assure a stable output power of 5W at a transfer distance of 200 cm. [ABSTRACT FROM AUTHOR]

Published
2019
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