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PVDF 필름을 이용한 효과적인 에너지 하베스팅에 관한 연구

A Study on Efficiency of Energy Conversion for a Piezoelectric Power Harvesting Using Polyvinylidene Fluorid Film

  • 허원영 (성균관대학교 정보통신공학부) ;
  • 이태용 (성균관대학교 정보통신공학부) ;
  • 이경천 (성균관대학교 정보통신공학부) ;
  • 황현석 (서일대학교 전기공학과) ;
  • 송준태 (성균관대학교 정보통신공학부)
  • Hur, Won-Young (Department of Information and Communication Engineering, Sungkyunkwan University) ;
  • Lee, Tae-Yong (Department of Information and Communication Engineering, Sungkyunkwan University) ;
  • Lee, Kyung-Chun (Department of Information and Communication Engineering, Sungkyunkwan University) ;
  • Hwang, Hyun-Suk (Department of Electrical Engineering, Seoil University) ;
  • Song, Joon-Tae (Department of Information and Communication Engineering, Sungkyunkwan University)
  • 투고 : 2011.03.04
  • 심사 : 2011.04.05
  • 발행 : 2011.05.11

초록

Piezoelectric materials can be used to convert mechanical energy into electrical energy. In this study, we investigated the possibility of harvesting from mechanical vibration force using a high efficient piezoelectric material-polyvinylidene fluoride (PVDF). A piezoelectric energy harvesting system consists of rectifier, filter capacitor, resistance. The experiments were carried out with impacting force to PVDF film with the thickness of 1 ${\mu}m$. The output power was measured with change in the load resistance value from 100 ${\Omega}$ to 2.2 $M{\Omega}$. The highest power was obtained under optimization by selection of suitable resistive load and capacitance. A power of 0.3082 ${\mu}W/mm^2$ was generated at the external vibration force of 5 N (10 Hz) across a 1 $M{\Omega}$ optimal resistor. Also, the maximum power of 0.345 ${\mu}W/mm^2$ was generated at 22 ${\mu}F$ and 1 $M{\Omega}$. The developed system was expected at a solution to overcome the critical problem of making up small size energy harvester.

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참고문헌

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