Power Transmission at High Frequency

1965 ◽  
Vol AS-3 (2) ◽  
pp. 402-410 ◽  
Author(s):  
F. P. Emery ◽  
Darius Irani
Keyword(s):  
High Frequency ◽  
Power Transmission

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.

scholarly journals Unilateral Route Method to Estimate Practical Mutual Inductance for Multi-Coil WPT System

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 377
Author(s):  
Seon-Jae Jeon ◽  
Sang-Hoon Lee ◽  
Dong-Wook Seo
Keyword(s):  
High Frequency ◽  
Power Transmission ◽  
Transmission Efficiency ◽  
Mutual Inductance ◽  
New Method ◽  
Parasitic Element ◽  
Parasitic Effects

Multi-coil WPT systems require mutual inductance information between coils to increase the power transmission efficiency. However, in the high frequency (HF) bands such as 6.78 MHz and 13.56 MHz, the presence of surrounding coils changes the value of the mutual inductance between the two coils due to the parasitic element effect of the coils. These parasitic effects make it harder to estimate the mutual inductance among three or more coils. In contrast to ideal mutual inductance, which has a constant value regardless of frequency and surrounding coils, we define the practical mutual inductance as the mutual inductance varied by parasitic elements. In this paper, a new method is presented to estimate the practical mutual inductance between multiple coils in the HF band. The proposed method simply configures the expression of practical mutual inductance formula because only one of two bilateral dependent voltage sources generated by mutual inductance is considered. For several coils placed along the same axis, the practical mutual inductances between coils were measured with respect to the distance between them to validate the proposed method. The practical mutual inductance obtained from the proposed method was consistent with the simulated and measured values in HF band.

Recognition of location-probing signals in high-frequency path of power-transmission line using spectral analysis

2011 ◽  
Vol 82 (7) ◽  
pp. 383-387 ◽  
Author(s):  
R. G. Minullin ◽  
E. I. Lukin ◽  
E. F. Khakimzyanov ◽  
S. G. Vedernikov ◽  
I. S. Lavrent’ev
Keyword(s):  
Spectral Analysis ◽  
Transmission Line ◽  
High Frequency ◽  
Power Transmission ◽  
Power Transmission Line ◽  
Location Probing

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
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