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An Electromagnetic Wind Energy Harvester Based on Rotational Magnet Pole-Pairs for Autonomous IoT Applications

Author

Listed:
  • Sajib Roy

    (Department of Electrical and Electronic Engineering, Islamic University, Kushtia 7003, Bangladesh)

  • Md Humayun Kabir

    (Department of Electrical and Electronic Engineering, Islamic University, Kushtia 7003, Bangladesh)

  • Md Salauddin

    (Department of Electronic Engineering, Kwangwoon University, Seoul 01897, Korea)

  • Miah A. Halim

    (Interdisciplinary Microsystems Group, University of Florida, Gainesville, FL 32601, USA)

Abstract

In this paper, we report a wind energy harvesting system for Internet of Things (IoT)-based environment monitoring (e.g., temperature and humidity, etc.) for potential agricultural applications. A wind-driven electromagnetic energy harvester using rotational magnet pole-pairs (rotor) with a back-iron shield was designed, analyzed, fabricated, and characterized. Our analysis (via finite element method magnetic simulations) shows that a back-iron shield enhances the magnetic flux density on the front side of a rotor where the series connected coils interact and convert the captured mechanical energy (wind energy) into electrical energy by means of electromagnetic induction. A prototype energy harvester was fabricated and tested under various wind speeds. A custom power management circuit was also designed, manufactured, and successfully implemented in real-time environmental monitoring. The experimental results show that the harvester can generate a maximum average power of 1.02 mW and maximum power efficiency of 73% (with power management circuit) while operated at 4.5 m/s wind speed. The system-level demonstration shows that this wind-driven energy harvesting system is capable of powering a commercial wireless sensor that transmits temperature and humidity data to a smartphone for more than 200 min after charging its battery for only 10 min. The experimental results indicate that the proposed wind-driven energy harvesting system can potentially be implemented in energetically autonomous IoT for smart agriculture applications.

Suggested Citation

  • Sajib Roy & Md Humayun Kabir & Md Salauddin & Miah A. Halim, 2022. "An Electromagnetic Wind Energy Harvester Based on Rotational Magnet Pole-Pairs for Autonomous IoT Applications," Energies, MDPI, vol. 15(15), pages 1-14, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:15:p:5725-:d:882023
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    References listed on IDEAS

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    Cited by:

    1. Maria G. Ioannides & Anastasios P. Stamelos & Stylianos A. Papazis & Erofili E. Stamataki & Michael E. Stamatakis, 2024. "Internet of Things-Based Control of Induction Machines: Specifics of Electric Drives and Wind Energy Conversion Systems," Energies, MDPI, vol. 17(3), pages 1-28, January.
    2. Zhou, Zhiyong & Cao, Di & Huang, Haobo & Qin, Weiyang & Du, Wenfeng & Zhu, Pei, 2024. "Biomimetic swallowtail V-shaped attachments for enhanced low-speed wind energy harvesting by a galloping piezoelectric energy harvester," Energy, Elsevier, vol. 304(C).

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