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Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction.
Li, Zhongjie; Xin, Chuanfu; Peng, Yan; Wang, Min; Luo, Jun; Xie, Shaorong; Pu, Huayan.
Afiliación
  • Li Z; School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China.
  • Xin C; Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China.
  • Peng Y; School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China.
  • Wang M; School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China.
  • Luo J; Engineering Research Center of Unmanned Intelligent Marine Equipment, Ministry of Education, 99 Shangda Rd., Shanghai 200444, China.
  • Xie S; School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China.
  • Pu H; Engineering Research Center of Unmanned Intelligent Marine Equipment, Ministry of Education, 99 Shangda Rd., Shanghai 200444, China.
Micromachines (Basel) ; 12(7)2021 Jul 07.
Article en En | MEDLINE | ID: mdl-34357213
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/cm3 and 5.14 µW/cm3 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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Micromachines (Basel) Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Micromachines (Basel) Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza