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Open AccessArticle

Dual-Frequency Programmed Harmonics Modulation-based Simultaneous Wireless Information and Power Transfer System via a Common Resonance Link

1
School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
2
Faculty of Electrical Engineering and Computer Science, VŠB-Technical University of Ostrava, Poruba-Ostrava 70032, Czech Republic
*
Authors to whom correspondence should be addressed.
Sustainability 2020, 12(10), 4189; https://doi.org/10.3390/su12104189
Received: 8 March 2020 / Revised: 9 May 2020 / Accepted: 11 May 2020 / Published: 20 May 2020
Most simultaneous wireless information and power transmission (SWIPT) systems currently operate at a single frequency, where the power and information transmission affect the resonance state of each other. This paper proposes a structure using dual-frequency programmed harmonics modulation (DFPHM). The primary-side inverter outputs a dual-frequency (DF) wave containing the power transmission and information transmission frequencies, while the DF wave is coupled to the secondary side through a common inductive link. After the power and information are transmitted to the secondary side, they are demodulated in different branches. Wave trappers are designed on each branch to reduce the interference of information transmission on power transmission. There is no tight coupling transformer in the system to inject information, so the system order is not high. Experiments verified that the proposed structure based on DFPHM is effective. View Full-Text
Keywords: common resonance link; dual-frequency programmed harmonics modulation; selected harmonic elimination PWM; simultaneous wireless information and power transfer; wave trapper common resonance link; dual-frequency programmed harmonics modulation; selected harmonic elimination PWM; simultaneous wireless information and power transfer; wave trapper
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Wu, J.; Zhang, H.; Gao, P.; Dou, Z.; Jin, N.; Snášel, V. Dual-Frequency Programmed Harmonics Modulation-based Simultaneous Wireless Information and Power Transfer System via a Common Resonance Link. Sustainability 2020, 12, 4189.

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