ANALYTICAL MODELING AND MATLAB-BASED SIMULATION OF A LINEAR ELECTROMAGNETIC ENERGY HARVESTER WITH A TOROIDAL MAGNETIC CORE
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https://doi.org/10.5281/zenodo.19651432##article.subject##:
toroidal magnetic core, linear electromagnetic generator, mechanical energy harvesting, magnetic circuit analysis and modeling, electromagnetic induction principles, magnetic flux coupling, reluctance-based evaluation, induced electromotive force (EMF), parameter-based performance analysis, low-frequency energy applications, coil design optimization, output power enhancement strategies##article.abstract##
In recent years, the efficient utilization of low-frequency mechanical energy sources has attracted considerable
attention in renewable energy research and the development of self-powered systems [1][2]. One of the promising
methods for converting ambient mechanical energy into electrical energy is electromagnetic energy harvesting based on
linear motion mechanisms [3][6]. However, traditional linear electromagnetic generators, which are typically designed with
open magnetic circuits or cylindrical cores, experience significant magnetic flux leakage, resulting in reduced conversion
efficiency.
In this study, a new linear electromagnetic energy harvesting module based on a slotted toroidal magnetic core structure
is proposed. This design improves magnetic flux confinement and enhances overall induction efficiency. A detailed
mathematical model of the system is developed by integrating magnetic circuit theory, principles of electromagnetic
induction, and electrical load analysis. The magnetic flux distribution is represented as a function of the magnet’s position,
while an analytical expression for the induced electromotive force (EMF) is derived by considering the relative motion
between the magnet and the coil.
In addition, the effects of key parameters such as air-gap length, number of coil turns, magnet velocity, and load resistance
on output voltage and generated power are thoroughly analyzed. The optimal conditions for maximum power transfer
are also determined analytically. The results indicate that the toroidal magnetic core configuration effectively minimizes
magnetic flux leakage and significantly improves energy conversion efficiency compared to conventional designs. The
proposed model provides a theoretical basis for the design and optimization of high-performance linear electromagnetic
energy harvesting systems, particularly for low-frequency energy applications.
Библиографические ссылки
Shad Roundy, Paul K. Wright, and Jan Rabaey. Energy Scavenging for Wireless Sensor Networks: Emphasis on
Vibration Sources. Boston: Kluwer Academic Publishers, 2004.
Stephen P. Beeby, Michael J. Tudor, and Neil M. White. “Vibration-Based Energy Harvesting Techniques for
Microsystem Applications”. Measurement Science and Technology, vol. 17, no. 12, 2006, pp. R175–R195.
Shashank Priya and Daniel J. Inman (eds.). Energy Harvesting Technologies. Springer, 2009.
Neil Elvin and Alper Erturk. Advances in Energy Harvesting Methods. Springer, 2013.
Alper Erturk and Daniel J. Inman. Piezoelectric Energy Harvesting. John Wiley & Sons, 2011.
Paul D. Mitcheson, Eric M. Yeatman, G. K. Rao, Andrew S. Holmes, and Tim C. Green. “Energy Harvesting from
Human and Machine Motion for Wireless Electronics”. Proceedings of the IEEE, vol. 96, no. 9, 2008, pp. 1457–1486.
Zhong Lin Wang. “Triboelectric Nanogenerators as an Emerging Energy Technology and Self-Powered Sensing
Platform”. Faraday Discussions, vol. 176, 2017, pp. 447–458.
W. Li, L. Xu, and Z. Wang. “A Comprehensive Review of Electromagnetic Energy Harvesting Design and Applications”.
Renewable and Sustainable Energy Reviews, vol. 82, 2018, pp. 350–370.
Dirk Spreemann and Yusuf Manoli. Electromagnetic Vibration Energy Harvesting Devices. Springer, 2012.
Alireza Khaligh and Omer C. Onar. Energy Harvesting: Conversion Systems for Solar, Wind, and Ocean Energy. CRC
Press, 2010.
Ion Boldea and Syed A. Nasar. Handbook of Linear Electric Machines, Drives, and MAGLEV Systems. CRC Press,
A. E. Fitzgerald, Charles Kingsley, and Stephen D. Umans. Electric Machinery. 6th ed. McGraw-Hill, 2003.
Stephen J. Chapman. Fundamentals of Electric Machinery. 5th ed. McGraw-Hill, 2012.
Ned Mohan. Electric Machines and Drives: An Introductory Course. Wiley, 2011.
Paul C. Krause, Oleg Wasynczuk, Scott D. Sudhoff, and Steven Pekarek. Analysis of Electric Machinery and Drive
Systems. Wiley, 2013.
Загрузки
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