Energy Harvester Based on an Eccentric Pendulum and Wiegand Wires
This study proposed an energy harvester that combines an eccentric pendulum with Wiegand wires to harvest the kinetic energy of a rotating plate. The energy harvester converts the kinetic energy into electrical energy to power sensors mounted on the rotating plate or wheel. The kinetic model is deri...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/4/623 |
| _version_ | 1797410046819172352 |
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| author | Yi-Hsin Chen Chien Lee Yu-Jen Wang You-Yu Chang Yi-Cheng Chen |
| author_facet | Yi-Hsin Chen Chien Lee Yu-Jen Wang You-Yu Chang Yi-Cheng Chen |
| author_sort | Yi-Hsin Chen |
| collection | DOAJ |
| description | This study proposed an energy harvester that combines an eccentric pendulum with Wiegand wires to harvest the kinetic energy of a rotating plate. The energy harvester converts the kinetic energy into electrical energy to power sensors mounted on the rotating plate or wheel. The kinetic model is derived from the Euler–Lagrange equation. The eccentric pendulum generates a swing motion from the direction variation of the centrifugal force and the gravitational force. The magnetic circuit is designed such that, during the swing motion, an alternating magnetic field is formed to induce the output voltage of the Wiegand wire. COMSOL software was used to simulate magnetic flux density and optimize the geometric parameters of magnets. Response surface methodology was used to formulate the output voltage model. Magnetic flux density affects output voltage dramatically. However, the output voltage is not sensitive to the gradient of magnetic flux density. The experimental results indicate that when the Wiegand wire is 14.2 mm from the magnet, the generation power is 0.118–1.15 mW, in a speed range of 240–540 rpm. When the Wiegand wire is 7.0 mm from the magnet, the generation power is 0.741–1.06 mW, in a speed range of 480–660 rpm. |
| first_indexed | 2024-03-09T04:23:13Z |
| format | Article |
| id | doaj.art-bdf8b5b553314a92a91dcfcb54caf0be |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T04:23:13Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-bdf8b5b553314a92a91dcfcb54caf0be2023-12-03T13:44:24ZengMDPI AGMicromachines2072-666X2022-04-0113462310.3390/mi13040623Energy Harvester Based on an Eccentric Pendulum and Wiegand WiresYi-Hsin Chen0Chien Lee1Yu-Jen Wang2You-Yu Chang3Yi-Cheng Chen4Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 804201, TaiwanDepartment of Intelligent Robotics, National Pingtung University, Pingtung 900392, TaiwanDepartment of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 804201, TaiwanDepartment of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 804201, TaiwanSmart Sensing & Systems Technology Center, Industrial Technology Research Institute, Tainan 709410, TaiwanThis study proposed an energy harvester that combines an eccentric pendulum with Wiegand wires to harvest the kinetic energy of a rotating plate. The energy harvester converts the kinetic energy into electrical energy to power sensors mounted on the rotating plate or wheel. The kinetic model is derived from the Euler–Lagrange equation. The eccentric pendulum generates a swing motion from the direction variation of the centrifugal force and the gravitational force. The magnetic circuit is designed such that, during the swing motion, an alternating magnetic field is formed to induce the output voltage of the Wiegand wire. COMSOL software was used to simulate magnetic flux density and optimize the geometric parameters of magnets. Response surface methodology was used to formulate the output voltage model. Magnetic flux density affects output voltage dramatically. However, the output voltage is not sensitive to the gradient of magnetic flux density. The experimental results indicate that when the Wiegand wire is 14.2 mm from the magnet, the generation power is 0.118–1.15 mW, in a speed range of 240–540 rpm. When the Wiegand wire is 7.0 mm from the magnet, the generation power is 0.741–1.06 mW, in a speed range of 480–660 rpm.https://www.mdpi.com/2072-666X/13/4/623energy harvesterpower generatorWiegand wiremagnetic flux density |
| spellingShingle | Yi-Hsin Chen Chien Lee Yu-Jen Wang You-Yu Chang Yi-Cheng Chen Energy Harvester Based on an Eccentric Pendulum and Wiegand Wires Micromachines energy harvester power generator Wiegand wire magnetic flux density |
| title | Energy Harvester Based on an Eccentric Pendulum and Wiegand Wires |
| title_full | Energy Harvester Based on an Eccentric Pendulum and Wiegand Wires |
| title_fullStr | Energy Harvester Based on an Eccentric Pendulum and Wiegand Wires |
| title_full_unstemmed | Energy Harvester Based on an Eccentric Pendulum and Wiegand Wires |
| title_short | Energy Harvester Based on an Eccentric Pendulum and Wiegand Wires |
| title_sort | energy harvester based on an eccentric pendulum and wiegand wires |
| topic | energy harvester power generator Wiegand wire magnetic flux density |
| url | https://www.mdpi.com/2072-666X/13/4/623 |
| work_keys_str_mv | AT yihsinchen energyharvesterbasedonaneccentricpendulumandwiegandwires AT chienlee energyharvesterbasedonaneccentricpendulumandwiegandwires AT yujenwang energyharvesterbasedonaneccentricpendulumandwiegandwires AT youyuchang energyharvesterbasedonaneccentricpendulumandwiegandwires AT yichengchen energyharvesterbasedonaneccentricpendulumandwiegandwires |