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Comparative Analysis of SS, SP, PP and PS Topologies for Magnetic Coupled Wireless Power Transfer System Composed of the Negative Resistor

Author

Listed:
  • Xujian Shu

    (College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China)

  • Guoxin Wu

    (College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China)

  • Yanwei Jiang

    (College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China)

Abstract

In recent years, the concept of the negative resistor (NR) has been proposed and applied in the magnetic coupled wireless power transfer (MC-WPT) system to improve the stability of power transfer. However, it remains a fundamental challenge to find the characteristic differences and applications of the four basic NR-based MC-WPT topologies. In this paper, the circuit models of the four basic NR-based MC-WPT topologies: series-series (SS), series-parallel (SP), parallel-parallel (PP), and parallel-series (PS) are established, and their characteristics are analyzed and compared by using circuit theory, which enables engineers to determine and select topologies to suit different applications and requirements. Theoretical analysis shows that the compensation methods of the transmitter and receiver of the NR-based MC-WPT system would affect the operating frequency and output characteristics of the system. Moreover, by comparative analysis, the conditions and applicable ranges for a stable output of different topologies were provided. Finally, the experimental prototypes are set up by using the power electronic inverter and operational amplifier, and the voltage gain ratios of the four basic NR-based WPT topologies under the variations of transfer distance and load are observed. The experimental results validate the correctness of the theoretical analysis.

Suggested Citation

  • Xujian Shu & Guoxin Wu & Yanwei Jiang, 2023. "Comparative Analysis of SS, SP, PP and PS Topologies for Magnetic Coupled Wireless Power Transfer System Composed of the Negative Resistor," Energies, MDPI, vol. 16(21), pages 1-16, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:21:p:7336-:d:1270180
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    References listed on IDEAS

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    1. Sid Assawaworrarit & Xiaofang Yu & Shanhui Fan, 2017. "Robust wireless power transfer using a nonlinear parity–time-symmetric circuit," Nature, Nature, vol. 546(7658), pages 387-390, June.
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