Design a stray magnetic field energy harvester device

Ahmad Lutfi, Aliya Waheedah (2021) Design a stray magnetic field energy harvester device. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, energy harvesting has been a great initiative to use an energy conservation as an act to store the energy for further use in every power line and power grid. This study focuses on developing an energy harvester by using stray magnetic field which is an energy created by electric current that flows along power line of a power distribution system. This study will further the chance for supplying energy for low-power device especially sensor. The methods used in this project is the used of ferrite-core magnet of different size and demonstrated with several number of turns focusing on harvesting power device. The basic focus of ferromagnetic materials was on the theory of the magnetic field to obtain energy for small electronic devices to provide electricity. Using magnetic field theory, the first step defines the magnetic field around the current carrying cable. After winding the ferrite-core with various turns, tests the proposed harvester by seeing the output voltage emf. The last step compares among the core winding which produces the best results which for ferrite-core A with 150 turns give maximum output voltage of 0.2289V at current equals 0.5A, while for ferrite-core B with 150 turns give maximum output voltage of 0.01493V at current equals 0.5A. In conclusion, ferrite-core A produced the best result overall with higher voltage produced

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