Clemson University TigerPrints All Theses Theses 5-2017 Wireless Energy Transfer Using Resonant Magnetic Induction for Electric Vehicle Charging Application Neelima Dahal Clemson University,
[email protected] Follow this and additional works at: https://tigerprints.clemson.edu/all_theses Recommended Citation Dahal, Neelima, "Wireless Energy Transfer Using Resonant Magnetic Induction for Electric Vehicle Charging Application" (2017). All Theses. 2614. https://tigerprints.clemson.edu/all_theses/2614 This Thesis is brought to you for free and open access by the Theses at TigerPrints. It has been accepted for inclusion in All Theses by an authorized administrator of TigerPrints. For more information, please contact
[email protected]. WIRELESS ENERGY TRANSFER USING RESONANT MAGNETIC INDUCTION FOR ELECTRIC VEHICLE CHARGING APPLICATION A Thesis Presented to the Graduate School of Clemson University In Partial Fulfillment of the Requirements for the Degree Master of Science Electrical Engineering by Neelima Dahal May 2017 Accepted by: Dr. Anthony Q. Martin, Committee Chair Dr. Pingshan Wang Dr. Harlan B. Russell ABSTRACT The research work for this thesis is based on utilizing resonant magnetic induction for wirelessly charging electric vehicles. The background theory for electromagnetic induction between two conducting loops is given and it is shown that an RLC equivalent circuit can be used to model the loops. An analysis of the equivalent circuit is used to show how two loosely coupled loops can be made to exchange energy efficiently by operating them at a frequency which is the same as the resonant frequency of both. Furthermore, it is shown that the efficiency is the maximum for critical coupling (determined by the quality factors of the loops), and increasing the coupling beyond critical coupling causes double humps to appear in the transmission efficiency versus frequency spectrum.