Affiliations: [a] Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan, India Tel.: +91 9785467297; E-mail: p2015017@pilani.bits-pilani.ac.in
Correspondence:
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Corresponding author: Prashant Upadhyay, Department of Electrical and Electronics Engineering, Vidyavihar, BITS Pilani, Pilani campus, Rajasthan, 333031, India. Tel.: +91 9785467297; E-mail: p2015017@pilani.bits-pilani.ac.in
Abstract: Soft-switched wireless power transfer system combines the advantages of both wireless power transfer (WPT) and soft-switching technology. In WPT systems, high-frequency power electronic converters are crucial part for coupling/decoupling to transfer power from sending end to receiving end without any physical contact. Soft-switching of power electronic converters can mitigate conduction losses and increase the efficiency. This paper comprises of the technical review and advancements in the technological developments of soft-switched wireless power transfer systems. This work identifies and validates the trends and challenges related to soft-switched wireless power transfer system in the current scenario. This study establishes that reaping the benefits of this technology will need a few more years of research and development. Characterization of various methods and results found in literature for various application are discussed in detail, which provides an in-depth summary of soft-switched wireless power transfer design aspects.
Keywords: Wireless power transfer, inductive resonant coupling, soft-switching, high-frequency power converters
