A Study of Optimal Structural Design for the Stackable Piezoelectric Power Generation Device Combining with Energy Storage System

• Main Authors: Ming-Han Hsu, 許明翰
• Other Authors: Ching-Wu Wang
• Format: Others
• Language: en_US
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/30749665207597838052

碩士 === 國立中正大學 === 光機電整合工程研究所 === 99 === For solving the globe warming problem, the action of creating renewable energy by wildly building the solar and wind power plants has been undoubtly to become two major developments. Unfortunately, the above two major efforts accordingly rely on a huge budget as well as a suitable working place to fully display their function efficiency. On the other hand, a newly developed technique by piezoelectric power generator to create renewable energy has caused much attraction since its friendly adoption, nevertheless the surrounding environment is lack of sunlight and wind. Basing on the statement mentioned in the above, the piezoelectric element is the core of the piezoelectric energy conversion system in this study, which utilizes the external force on piezoelectric module to generate an available output power. At the beginning, the single-layer piezoelectric power generation device will be designed and fabricated, which is covered by rubber materials and posted on top and bottom sides of piezoelectric element. Then, to improve the efficiency of conversion power, an optimal geometric structure will be designed and conducted. In order to reduce the occupied space of piezoelectric power generation module and to further increase the efficiency of conversion power, multi-layer stackable piezoelectric power generation module will be constructed. In addition, a suitable energy storage system will be also developed to store the conversion power. Evidence indicated that the two set of optimal three-layer stackable piezoelectric power generation devices could obviously achieve an instantaneous output power (6.68mW). At the same time, a 15 mAh Ni-MH battery could be fully-charged within thirty hours by utilizing the two set of optimal three-layer stackable piezoelectric power generation devices constituting with energy storage system.