A Rotary Piezoelectric Electromagnetic Hybrid Energy Harvester
To collect the energy generated by rotational motion in the natural environment, a piezoelectric electromagnetic hybrid energy harvester (HEH) based on a planetary gear system is proposed. The harvester combines piezoelectric and electromagnetic effects and is mainly used for collecting low-frequenc...
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MDPI AG
2025-07-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/7/807 |
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| author | Zhiyang Yao Chong Li |
| author_facet | Zhiyang Yao Chong Li |
| author_sort | Zhiyang Yao |
| collection | DOAJ |
| description | To collect the energy generated by rotational motion in the natural environment, a piezoelectric electromagnetic hybrid energy harvester (HEH) based on a planetary gear system is proposed. The harvester combines piezoelectric and electromagnetic effects and is mainly used for collecting low-frequency rotational energy. The HEH has a compact structure and contains four sets of piezoelectric energy harvesters (PEHs) and electromagnetic energy harvesters (EMHs) inside. The working principle of the energy harvester is analyzed, its theoretical model is established, and a simulation analysis is conducted. To verify the effectiveness of the design, an experimental device is constructed. The results indicate that the HEH can generate an average output power of 250 mW under eight magnets and an external excitation frequency of 7 Hz. In actual power supply testing, the HEH can light up 60 LEDs and provide stable power supply for the temperature–humidity meter. |
| format | Article |
| id | doaj-art-430de2bc6d1e45df83b6751ca80512f7 |
| institution | DOAJ |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-430de2bc6d1e45df83b6751ca80512f72025-08-20T02:47:07ZengMDPI AGMicromachines2072-666X2025-07-0116780710.3390/mi16070807A Rotary Piezoelectric Electromagnetic Hybrid Energy HarvesterZhiyang Yao0Chong Li1School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, ChinaSchool of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, ChinaTo collect the energy generated by rotational motion in the natural environment, a piezoelectric electromagnetic hybrid energy harvester (HEH) based on a planetary gear system is proposed. The harvester combines piezoelectric and electromagnetic effects and is mainly used for collecting low-frequency rotational energy. The HEH has a compact structure and contains four sets of piezoelectric energy harvesters (PEHs) and electromagnetic energy harvesters (EMHs) inside. The working principle of the energy harvester is analyzed, its theoretical model is established, and a simulation analysis is conducted. To verify the effectiveness of the design, an experimental device is constructed. The results indicate that the HEH can generate an average output power of 250 mW under eight magnets and an external excitation frequency of 7 Hz. In actual power supply testing, the HEH can light up 60 LEDs and provide stable power supply for the temperature–humidity meter.https://www.mdpi.com/2072-666X/16/7/807energy harvesterrotary motionoutput powerplanetary gear |
| spellingShingle | Zhiyang Yao Chong Li A Rotary Piezoelectric Electromagnetic Hybrid Energy Harvester Micromachines energy harvester rotary motion output power planetary gear |
| title | A Rotary Piezoelectric Electromagnetic Hybrid Energy Harvester |
| title_full | A Rotary Piezoelectric Electromagnetic Hybrid Energy Harvester |
| title_fullStr | A Rotary Piezoelectric Electromagnetic Hybrid Energy Harvester |
| title_full_unstemmed | A Rotary Piezoelectric Electromagnetic Hybrid Energy Harvester |
| title_short | A Rotary Piezoelectric Electromagnetic Hybrid Energy Harvester |
| title_sort | rotary piezoelectric electromagnetic hybrid energy harvester |
| topic | energy harvester rotary motion output power planetary gear |
| url | https://www.mdpi.com/2072-666X/16/7/807 |
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