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Simultaneous Identification of Multiple Parameters in Wireless Power Transfer Systems Using Primary Variable Capacitors

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  • المؤلفون: Liu, Chang; Han, Wei; Hu, Youhao; Zhang, Bowang
  • نوع التسجيلة:
    Electronic Resource
  • الدخول الالكتروني :
    http://repository.hkust.edu.hk/ir/Record/1783.1-136327
    https://doi.org/10.3390/app14020793
    http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2076-3417&rft.volume=14&rft.issue=2&rft.date=2024&rft.spage=&rft.aulast=Liu&rft.aufirst=C&rft.atitle=Simultaneous+Identification+of+Multiple+Parameters+in+Wireless+Power+Transfer+Systems+Using+Primary+Variable+Capacitors&rft.title=APPLIED+SCIENCES-BASEL
    http://www.scopus.com/record/display.url?eid=2-s2.0-85189484509&origin=inward
    http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=001149431900001
  • معلومة اضافية
    • Publisher Information:
      Mdpi 2024
    • نبذة مختصرة :
      Featured Application The methodology proposed in this article can be employed to improve the capability of the transmitting end of a WPT system to identify and adapt to parameter variations.Abstract This paper proposes a novel approach to simultaneously identifying multiple critical parameters in a wireless power transfer (WPT) system, such as the resonant frequency, mutual inductance, and load resistance, solely from the primary side. The key is to adopt a primary-side-switch-controlled capacitor (SCC) to ensure that the imaginary part of the input impedance is only caused by the secondary-side reflected impedance at three predesigned frequencies. The DSP controller then samples and processes the primary voltage and current using a gradient descent algorithm to derive the above parameters. After the identification, the SCC adjusts its equivalent capacitance based on the secondary-side practical resonant frequency to ensure a zero-phase angle (ZPA), thereby significantly improving the compatibility of the WPT system with unknown receivers. Compared to the previous frequency-sweeping method, the proposed approach is simpler and more suitable for deployment on the controller. Finally, experimental results demonstrate that the identification error of mutual inductance and resonant frequency are within 7.5% and 2.68%, respectively.
    • الموضوع:
      Wireless power transfer; Switch-controlled capacitor; Parameter identification; Zero-phase angle; Article
    • Availability:
      Open access content. Open access content
    • Note:
      English
    • Other Numbers:
      HNK oai:repository.hkust.edu.hk:1783.1-136327
      Applied Sciences, v. 14, (2), January 2024, article number 793
      2076-3417
      1440206467
    • Contributing Source:
      HONG KONG UNIV OF SCI & TECH, THE
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1440206467
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