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Abstract
The purpose of this study is to demonstrate the energy harvesting of power-line magnetic noise. To the best of the authors' knowledge, no research has yet been carried out to confirm this possibility. In this paper, we present a simple circuit design model, and confirm its validity by experimental results. For small self-sufficient devices in a wireless sensor network, the target energy level is 1 mW. We prepare an energy harvesting module with an air-core coil and resonant capacitor. From experimental and simulated results, we investigate the desired conditions for harvesting 1 mW from a uniform magnetic field of 60 Hz. Through experimental results with iron cores, the benefits and drawbacks of the use of a magnetic core are also discussed. With our best harvested module, we successfully demonstrated the energy harvesting of 6.32 mW from a magnetic field of 21.2 μT at 60 Hz. If the usable magnetic flux density increases tenfold, the harvesting energy increased 100-fold. If the magnetic flux density is at an acceptable level in a public space of 200 μT at 60 Hz, the harvesting power density becomes 130 μW/cm3. This value is comparable to the value of an energy harvesting module of a light source during a cloudy day.
Article
IEEE TRANSACTIONS ON MAGNETICS. 47(10):4441-4444 (2011)
Journal
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- IEEE TRANSACTIONS ON MAGNETICS
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IEEE TRANSACTIONS ON MAGNETICS 47 (10), 4441-4444, 2011-10
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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Details 詳細情報について
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- CRID
- 1050845763853026432
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- NII Article ID
- 120007105002
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- NII Book ID
- AA00667933
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- ISSN
- 00189464
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- HANDLE
- 10091/13270
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- CiNii Articles