Wireless Power Transfer (WPT) has been the research focus and applied in many fields. Normally power is transferred wirelessly to charge the battery, which requires specific load characteristics. The load characteristics are essential for the design and operation of the WPT system. This paper investigates the load characteristics of the WPT system with different resonant types and resonator numbers. It is found that in a WPT system with series or LCL resonance under a constant voltage source, the load characteristic is determined by the number of inductors. Even number of inductors results in a constant current characteristic and odd number constant voltage characteristic. Calculations, simulations, and experiments verify the analysis.
Y. Zhang et al., "Load Characteristics of Wireless Power Transfer System with Different Resonant Types and Resonator Numbers," AIP Advances, vol. 7, no. 5, American Institute of Physics (AIP), May 2017.
The definitive version is available at https://doi.org/10.1063/1.4972851
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
National Science Foundation (U.S.)
Keywords and Phrases
Electric power systems; Energy transfer; Resonators; Constant current; Constant voltage; Design and operations; Load characteristics; Research focus; Specific loads; Wireless power transfer; Wireless power transfer (WPT); Inductive power transmission
International Standard Serial Number (ISSN)
Article - Journal
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