한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2009년도 추계학술대회 논문집
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- Pages.277-277
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- 2009
무선 센서 노드용 진동형 마이크로 압전 에너지 하베스팅 설계 및 분석
Design and analysis of vibration micro piezoelectric energy harvesting for wireless sensor nodes
- Yoon, Kyu-Hyung (Univ. of Ulsan) ;
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Chung, Gwiy-Sang
(Univ. of Ulsan)
- 발행 : 2009.11.12
초록
In this paper, PMPG (Piezoelectric Micro Power Generator) was investigated by ANSYS FEA (Finite Element Analysis) to decrease operating frequency and improve out power. The micro power generator was designed to convert ambient vibration energy to electrical power as a ZnO piezoelectric material. To find optimal model in low vibration ambient, the shape of power generator was changed with different membrane width, thickness, length, and proof mass size. Used the ANSYS modal analysis, bending mode and stress distribution of optimal model were analyzed. Also, the displacement with the frequency range was analyzed by harmonic analysis. From the simulation results, the resonance frequency of optimal model is about 373 Hz and confirmed the possibility of ZnO micro power generator for wireless sensor node applications.