Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction
A novel hybridization scheme is proposed with electromagnetic transduction to improve the power density of piezoelectric energy harvester (PEH) in this paper. Based on the basic cantilever piezoelectric energy harvester (BC-PEH) composed of a mass block, a piezoelectric patch, and a cantilever beam,...
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MDPI AG
2021-07-01
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| Online Access: | https://www.mdpi.com/2072-666X/12/7/803 |
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| author | Zhongjie Li Chuanfu Xin Yan Peng Min Wang Jun Luo Shaorong Xie Huayan Pu |
| author_facet | Zhongjie Li Chuanfu Xin Yan Peng Min Wang Jun Luo Shaorong Xie Huayan Pu |
| author_sort | Zhongjie Li |
| collection | DOAJ |
| description | A novel hybridization scheme is proposed with electromagnetic transduction to improve the power density of piezoelectric energy harvester (PEH) in this paper. Based on the basic cantilever piezoelectric energy harvester (BC-PEH) composed of a mass block, a piezoelectric patch, and a cantilever beam, we replaced the mass block by a magnet array and added a coil array to form the hybrid energy harvester. To enhance the output power of the electromagnetic energy harvester (EMEH), we utilized an alternating magnet array. Then, to compare the power density of the hybrid harvester and BC-PEH, the experiments of output power were conducted. According to the experimental results, the power densities of the hybrid harvester and BC-PEH are, respectively, 3.53 mW/cm<sup>3</sup> and 5.14 μW/cm<sup>3</sup> under the conditions of 18.6 Hz and 0.3 g. Therefore, the power density of the hybrid harvester is 686 times as high as that of the BC-PEH, which verified the power density improvement of PEH via a hybridization scheme with EMEH. Additionally, the hybrid harvester exhibits better performance for charging capacitors, such as charging a 2.2 mF capacitor to 8 V within 17 s. It is of great significance to further develop self-powered devices. |
| first_indexed | 2024-03-10T09:31:04Z |
| format | Article |
| id | doaj.art-0054f94c321547a2814ba41c79e17716 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T09:31:04Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
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| series | Micromachines |
| spelling | doaj.art-0054f94c321547a2814ba41c79e177162023-11-22T04:24:47ZengMDPI AGMicromachines2072-666X2021-07-0112780310.3390/mi12070803Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic TransductionZhongjie Li0Chuanfu Xin1Yan Peng2Min Wang3Jun Luo4Shaorong Xie5Huayan Pu6School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaA novel hybridization scheme is proposed with electromagnetic transduction to improve the power density of piezoelectric energy harvester (PEH) in this paper. Based on the basic cantilever piezoelectric energy harvester (BC-PEH) composed of a mass block, a piezoelectric patch, and a cantilever beam, we replaced the mass block by a magnet array and added a coil array to form the hybrid energy harvester. To enhance the output power of the electromagnetic energy harvester (EMEH), we utilized an alternating magnet array. Then, to compare the power density of the hybrid harvester and BC-PEH, the experiments of output power were conducted. According to the experimental results, the power densities of the hybrid harvester and BC-PEH are, respectively, 3.53 mW/cm<sup>3</sup> and 5.14 μW/cm<sup>3</sup> under the conditions of 18.6 Hz and 0.3 g. Therefore, the power density of the hybrid harvester is 686 times as high as that of the BC-PEH, which verified the power density improvement of PEH via a hybridization scheme with EMEH. Additionally, the hybrid harvester exhibits better performance for charging capacitors, such as charging a 2.2 mF capacitor to 8 V within 17 s. It is of great significance to further develop self-powered devices.https://www.mdpi.com/2072-666X/12/7/803piezoelectricelectromagnetichybrid energy harvesterpower density improvement |
| spellingShingle | Zhongjie Li Chuanfu Xin Yan Peng Min Wang Jun Luo Shaorong Xie Huayan Pu Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction Micromachines piezoelectric electromagnetic hybrid energy harvester power density improvement |
| title | Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction |
| title_full | Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction |
| title_fullStr | Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction |
| title_full_unstemmed | Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction |
| title_short | Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction |
| title_sort | power density improvement of piezoelectric energy harvesters via a novel hybridization scheme with electromagnetic transduction |
| topic | piezoelectric electromagnetic hybrid energy harvester power density improvement |
| url | https://www.mdpi.com/2072-666X/12/7/803 |
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