STIR: Research Area 4.4: An Efficient Near-Field Wireless Power Transmission System
Abstract
High quality factor resonators are widely used in wireless power transmission systems since they effectively improve the power transmission efficiency over distance. Such systems have a limited operating bandwidth; hence, the conventional WPT systems are intolerant to frequency misalignment and coupling factor variation between transmit and receive coils. The objective of this research is to enhance the bandwidth of resonance circuits without compromising their quality factor. Within this work, resonant circuits that are described by Duffing nonlinear differential equations will be investigated and the type of device nonlinearities that are needed to design such nonlinear resonators will be determined. A proof of concept Duffing based nonlinear resonant circuit prototype will be designed, analyzed and fabricated. The nonlinear resonance circuit will be used to design a prototype position insensitive wireless power transmission system. The proposed nonlinear resonance circuits hold clear advantages over current approaches by providing a low cost, low complexity, and highly reliable solution for position-insensitive wireless power transmission design.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 03, 2019
- Source ID
- W911NF1510463
Entities
People
- Amir Mortazawi
Organizations
- Army Contracting Command
- United States Army
- University of Michigan