Transfer efficiency analysis of wireless power transfer system under frequency drift

2015 ◽  
Vol 117 (17) ◽  
pp. 17E706 ◽  
Author(s):  
S. D. Huang ◽  
Z. Q. Li ◽  
K. Y. Lu
Keyword(s):  
Wireless Power Transfer ◽  
Efficiency Analysis ◽  
Frequency Drift ◽  
Transfer Efficiency ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Wireless Power Transfer System

scholarly journals Numerical Study of Non-Radiating Near-Field Wireless Power Transfer System

2021 ◽  
Vol 2015 (1) ◽  
pp. 012170
Author(s):  
E Zanganeh ◽  
M Song ◽  
M Korobkov ◽  
A Evlyukhin ◽  
A Miroshnichenko ◽  
...  
Keyword(s):  
Magnetic Dipole ◽  
Near Field ◽  
Wireless Power Transfer ◽  
Transfer Efficiency ◽  
Transfer System ◽  
Dipole Mode ◽  
Power Transfer ◽  
Wireless Power ◽  
Power Transfer Efficiency ◽  
Wireless Power Transfer System

Abstract The main challenge in near-field wireless power transfer systems is the increase of power transfer efficiency. It can be achieved by reducing ohmic or radiation losses of the resonators included in the system. In this paper, we propose and investigate numerically a non-radiating near-field wireless power transfer system based on transmitter and receiver implemented as dielectric disk resonators. The transmitter and receiver geometrical parameters are numerically optimized to operate at the frequency of non-radiating state of high refractive index dielectric resonators instead of magnetic dipole mode. Under the non-radiating state, we determine the frequency with almost zero radiation to the far-field. We numerically study the wireless power transfer efficiency as a function of operation distance between the transmitter and receiver and demonstrate that the higher efficiency compared to magnetic dipole mode can be achieved at non-radiating state for a fixed distance due to suppression of the radiation loss.

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