Turkish Journal of Electrical Engineering and Computer Sciences
Author ORCID Identifier
ARSALAN HABIB KHAWAJA: 0000-0002-3507-7767
HASSAN PERVAIZ: 0000-0001-6700-5904
DONGSHENG CAI: 0000-0002-6862-7243
JIAN LI: 0000-0002-9422-0455
QI HUANG: 0000-0003-3795-6404
Abstract
This paper presents a novel magnetic field driven contactless energy harvester with improved flux concentration capabilities for potential utilization in Power system monitoring where stray magnetic field is abundant and readily available. The designed harvester employs multilayered Mu-Metal based cone shaped core to maximize magnetic flux density. To achieve the final design, this work investigates magnetic flux concentration ability of various geometries and material properties in magnetic flux conditions typical to overhead 11 kV power distribution circuits. Impact of layers in core-coil region of harvesting coil on magnetic flux concentration is evaluated by means of Finite Element analysis. Resultantly, the designed five-layer cone-shaped core ensures maximum magnetic flux concentration in the coil region. This combination amplifies magnetic flux density as well as provides enhanced power density in a compact design. A proof-of-concept prototype for efficient flux concentration was developed and exposed to stray magnetic flux surrounding the power line. An energy harvesting circuitry is then connected with cone-coil harvester to evaluate overall system performance. The design could harvest 4.5mW and the power density of 5.5uW/cm3. Mu-Metal based multi-layered cone coil demonstrate superior power density than state of the art Helical, Bow-tie, and Solenoid designs with an improvement in power generated by 2.61 to 6.62 times with a reduction in size by 3.9 times when compared with similar harvesting solutions.
DOI
10.55730/1300-0632.4110
Keywords
Energy Harvesting, Electromagnetic induction, Power Systems
First Page
1
Last Page
14
Publisher
The Scientific and Technological Research Council of Türkiye (TÜBİTAK)
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
KHAWAJA, A, PERVAIZ, H, CAI, D, Li, J, & HUANG, Q (2025). A novel Mu-metal based weak magnetic energy harvester for self-powered monitoring of Power grid assets. Turkish Journal of Electrical Engineering and Computer Sciences 33 (1): 1-14. https://doi.org/10.55730/1300-0632.4110
Included in
Computer Engineering Commons, Computer Sciences Commons, Electrical and Computer Engineering Commons
