4.8 Article

Simultaneous Wireless Power and Information Transmission Based on Harmonic Characteristic of Soft-Switching Inverter

Journal

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 69, Issue 6, Pages 6090-6100

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2021.3086710

Keywords

Inverters; Coils; Information processing; Harmonic analysis; Power system harmonics; Interference; Wireless communication; Constant output voltage; information transfer; power transfer; soft-switching; wireless power transfer (WPT)

Funding

  1. China Postdoctoral Science Foundation [2019M652003]
  2. Fundamental Research Funds for the Central Universities [2019QNA08]
  3. National Natural Science Foundation of China [51777210]
  4. Six Talent Peaks Project in Jiangsu Province [XNYQC-012]

Ask authors/readers for more resources

This article proposes a novel method for simultaneous wireless power and information transmission (SWPIT), addressing the issues of interference and complex circuit design in wireless power transfer systems. By establishing a stroboscopic mapping model and optimizing parameter design, the simultaneous transmission of power and information is achieved, and the correctness and effectiveness of the method are verified through experiments.
The existing simultaneous wireless power and information transmission (SWPIT) technology used for wireless power transfer (WPT) systems is seriously plagued by the interference between the power and information transmission and the complex design of the information transmission and receiving circuits. To combat these problems, this article proposes a novel SWPIT method, which does not need additional information transmitting or receiving coils. The stroboscopic mapping model of the WPT system is established first, and the soft-switching points of the dc-ac inverter are derived and compared for better utilizing deviation frequency enlargement effect (DFEE) to transfer power and information simultaneously. Subsequently, the information detection circuit is designed based on DFEE. The impacts caused by the detection circuit on the power and information transmission are analyzed in detail. Then, the parameters of the detection circuit are optimized for minimizing the mutual interference between the power and information transmission. Finally, a 50 W experimental platform is established to verify the correctness and effectiveness of the proposed SWPIT strategy. The experimental results show that the information transmission rate can reach up to 16 kbps, the load voltage fluctuation can be controlled below 3%, and the efficiency of the whole system can be maintained at 90%.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available