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Circulating Current Minimization in MC-WPT System with Multiple Inverter Modules Operate in Parallel

  • Zhou Xu
  • Zhihui Wang
  • Jianhua Wu
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 528)

Abstract

The magnetic coupled wireless power transfer (MCWPT) system with multiple inverter modules operated in parallel is investigated in this paper. The circulating current among the inverter modules is analyzed first. A novel topology with a control scheme is proposed aiming to minimize the circulating current among the inverter modules based on the active and reactive current decomposition. In the proposed circulating minimization method, there is only one loop which is proved to be a phase control loop. It is shown that the circulating current minimization can be achieved if the phase of all the modules output voltages are the same. Performance is verified with both simulations and experiments on a prototype MCWPT system where two resonant inverter modules are operated in parallel. Finally, a conclusion is given.

Keywords

Magnetic coupled wireless power transfer system Inverter modules operated in parallel Current decomposition Circulating current minimization 

References

  1. 1.
    Y. Sun, Z.H. Wang, Study of frequency stability of contactless power transmission system. Trans. China Electrotech. 56–59 (2005)Google Scholar
  2. 2.
    Y.G. Su, C.S. Tang, Load adaptive technology of contactless power transfer system. Trans. China Electrotech. Soc. 153–157 (2009)Google Scholar
  3. 3.
    M. Liu, S. Liu, A high-efficiency/output power and low-noise megahertz wireless power transfer system over a wide range of mutual inductance. IEEE Trans. Microw. Theory Tech. 1–9 (2017)Google Scholar
  4. 4.
    Z. Ye, P.K. Jain, Circulating current minimization in high-frequency AC power distribution architecture with multiple inverter modules operated in parallel. IEEE Trans. Power Electron. 2673–2687 (2007)Google Scholar
  5. 5.
    M. Borage, S. Tiwari, Analysis and design of an LCL-T resonant converter as a constant-current power supply. IEEE Trans. Ind. Electron. 1547–1554 (2000)CrossRefGoogle Scholar
  6. 6.
    M. Hansen, B. Hauge, Scripting, control, and privacy in domestic smart grid technologies: Insights from a Danish pilot study. Energy Res. Soc. Sci. 112–123 (2017)CrossRefGoogle Scholar
  7. 7.
    Y. Wang, Y. Yao, An LC/S compensation topology and coil design technique for wireless power transfer. IEEE Trans. Power Electron. (Melville) 1–1 (2017)Google Scholar
  8. 8.
    R. Mai, L. Lu, Circulating current reduction strategy for parallel-connected inverters based IPT systems. Energies 261 (2007)Google Scholar
  9. 9.
    A. Kurs, A. Karalis, Wireless power transfer via strongly coupled magnetic resonances. Science 83 (2007)Google Scholar
  10. 10.
    A.P. Sample, D.T. Meyer, Analysis, experimental results, and range adaptation of magnetically coupled resonators for wireless power transfer. Trans. Ind. Electron. 544–554 (2011)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.College of AutomationChongqing UniversityChongqinggChina

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