scholarly journals A Fractional-Order Element (FOE)-Based Approach to Wireless Power Transmission for Frequency Reduction and Output Power Quality Improvement

Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 1029 ◽  
Author(s):  
Guidong Zhang ◽  
Zuhong Ou ◽  
Lili Qu
Keyword(s):  
Fractional Order ◽  
High Frequency ◽  
Power Efficiency ◽  
Power Transmission ◽  
Switching Frequency ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
High Switching Frequency ◽  
Power Quality Improvement ◽  
Power Inductors

A wireless power transmission (WPT) requires high switching frequency to achieve energy transmission; however, existing switching devices cannot satisfy the requirements of high-frequency switching, and the efficiency of current WPT is too low. Compared with the traditional power inductors and capacitors, fractional-order elements (FOEs) in WPT can realize necessary functions though requiring a lower switching frequency, which leads to a more favorable high-frequency switching performance with a higher efficiency. In this study, a generalized fractional-order WPT (FO-WPT) is established, followed by a comprehensive analysis on its WPT performance and power efficiency. Through extensive simulations of typical FO wireless power domino-resonators (FO-WPDRS), the functionality of the proposed FO-WPT for medium and long-range WPT is demonstrated. The numerical results show that the proposed FOE-based WPT solution has a higher power efficiency and lower switching frequency than conventional methods.

High-frequency polymer diode rectifiers for flexible wireless power-transmission sheets

2011 ◽  
Vol 12 (11) ◽  
pp. 1777-1782 ◽  
Author(s):  
Chang-Yu Lin ◽  
Chih-Hung Tsai ◽  
Heng-Tien Lin ◽  
Li-Chi Chang ◽  
Yung-Hui Yeh ◽  
...  
Keyword(s):  
High Frequency ◽  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission

scholarly journals Rectifier Design Using Distributed Greinacher Voltage Multiplier for High Frequency Wireless Power Transmission

2014 ◽  
Vol 14 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Joonwoo Park ◽  
Youngsub Kim ◽  
Young Joong Yoon ◽  
Joonho So ◽  
Jinwoo Shin
Keyword(s):  
High Frequency ◽  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Voltage Multiplier

Experimental Research on the Influence of Transmission Parameters on the Transmission Performance of Magnetic Resonance Wireless Power Transmission Systems

2014 ◽  
Vol 551 ◽  
pp. 393-398
Author(s):  
Chang Sheng Li ◽  
He Zhang ◽  
Xiao Hua Jiang
Keyword(s):  
Magnetic Resonance ◽  
Power Efficiency ◽  
High Efficiency ◽  
Power Transmission ◽  
Transmission Power ◽  
Wireless Power ◽  
Transmission Performance ◽  
Wireless Power Transmission ◽  
Transmission Systems ◽  
Transmission Parameters

Magnetic resonance wireless power transmission uses resonance strong coupling between the transmission and receiving terminals to realize a non-contact efficient supply of energy over large distance. The transmission power, efficiency and distance are confirmed by comprehensive function of the transmission parameters. By taking experimental means, the influence laws of loop transmission parameters, such as separation between coils, coil size, etc., on the transmission performance are studied in this paper. The experimental results show that the power high-efficiency and high-quality transmission does not depend on the large coil loop coupling coefficient and transmission power and efficiency may increase firstly and then decline as the separation between coils increases. The transmission performance can be optimized by increasing the coils diameter or wire diameter, and moreover, transmission systems with a high resonance frequency can produce high power and efficiency transmission over short distances.

Wireless power transmission with a sown auxiliary coil to improve power efficiency for an implantable device

2020 ◽  
Vol 64 (1-4) ◽  
pp. 843-851
Author(s):  
Ryunosuke Sasaki ◽  
Kohei Koizumi ◽  
Shogo Kiryu
Keyword(s):  
Magnetic Resonance ◽  
Power Efficiency ◽  
Power Transmission ◽  
Transmission System ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Scaled Model ◽  
Cardioverter Defibrillator ◽  
The Poor ◽  
Power Transmission System

In this study, a magnetic resonance wireless power transmission system with a sown auxiliary coil is described. The system is proposed to deliver power to an “implantable cardioverter defibrillator” (ICD) device from a bed. The auxiliary coil is supposed to be sown in a shirt. With the coil, the poor coupling coefficient and the effective quality factor can be improved. In this study, the power efficiency was investigated on a magnetic resonance wireless power transmission system with a sown auxiliary coil by using a 1/2 scaled model. As a result, when transfer distance was 100 mm (200 mm in the full scaled model) and lord resistance was 20 Ω, the maximum transfer efficiency with an auxiliary coil was measured to be about 70% much higher than without that.

Design of ramp-time current control with dynamic fuzzy bandwidth for wireless power transmission

2015 ◽  
Vol 8 (8) ◽  
pp. 1173-1182
Author(s):  
Leong Wen Chek ◽  
Saad Mekhilef ◽  
Erwan Sulaiman ◽  
Macwien Krishnamurthi
Keyword(s):  
Power Transmission ◽  
Current Control ◽  
Dynamic Responses ◽  
Experimental Simulation ◽  
Prototype Model ◽  
Switching Frequency ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Active Power Filters ◽  
Power Filters

This paper presents a novel experimental simulation of ramp-time current control with fuzzy bandwidth for wireless power transmission (WPT) systems. A fuzzy logic control algorithm was designed based on the structure of ramp-time current control in active power filters through simulation of ramp-time bandwidth variation to dynamically adjust the loop width of the ramp-time comparator. Ramp-time current control is the most suitable over other current control techniques and is thus selected for the experiment. Implementation of this approach prevents over-limit of switching frequency and enhances dynamic responses, resulting in long lifespan of power switches and smooth output for WPT systems. Finally, the hypothesis and simulation results were verified by analyzing the prototype model and experiment results.

Sign in / Sign up

Export Citation Format

Share Document