Clamp–On Magnetic Energy Harvesting

Large-scale deployment of low-power sensing and computing units call for unique power management solutions to overcome the inconvenience, costs, and waste problems associated with batteries. Energy harvesting offers an exciting solution to the battery problem, enabling circuits that can power themselves on-site from available ambient energy. Magnetic energy harvesters, configured as current transformers (CTs), extract energy from the magnetic fields surrounding current-carrying power lines. This thesis proposes generalized analytical methods for modeling magnetic energy harvester behavior and validates these methods along with existing circuit model techniques. A simplified magnetic core permeability characterization method is introduced. This thesis is motivated by addressing the feasibility of a split-core magnetic energy harvester to power a microcontroller unit, and the models are experimentally validated for multiple harvester cores. A completely self-powered system is implemented with an energy enhancement strategy that significantly increases power harvest in the presence of core saturation.

Name thesis:degree_name

Master

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2022

Author dc:creator

• Monagle, Daniel

Advisors dc:contributor.advisor

• Leeb, Steven B.
• Ponce, Eric A.

Statement dc:rights

• In Copyright - Educational Use Permitted
• Copyright MIT

Licence dc:rights.uri

• http://rightsstatements.org/page/InC-EDU/1.0/

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/144973

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/144973