Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Development and Evaluation of Self-powered Energy Harvester in Wireless Sensor Node for Diagnosis of Electric Power System

전력계통 구조물의 상태진단용 자가발전 무선 센서 노드 개발 및 평가

  • Kim, Chang Il (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Jeong, Young-Hun (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Yun, Ji Sun (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Hong, Youn Woo (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Jang, Yong-Ho (Senbool Inc.) ;
  • Choi, Beom-Jin (Senbool Inc.) ;
  • Park, Shin-Seo (Senbool Inc.) ;
  • Son, Chun Myung (KDN Electric power IT Research Institute, KEPCO KDN Co.) ;
  • Seo, Duck Ki (KDN Electric power IT Research Institute, KEPCO KDN Co.) ;
  • Paik, Jong Hoo (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology)
  • Received : 2016.09.26
  • Accepted : 2016.09.30
  • Published : 2016.09.30
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Abstract

A self-powered piezoelectric energy harvester was developed for the application in wireless sensor node. The energy harvester was evaluated with power generation characteristics for the wireless sensor node for structural diagnosis of the electric power system. The self-powered wireless sensor node was set to measure temperature, vibration frequency of the electric power system. A piezoelectric harvester composed of 7 uni-morph cantilevers (functionalized as 6 generators and 1 vibration sensor) was connected to be an array and revealed to produce significantly high output power of approximately 10 mW at 120 Hz under 3.4 g((1 g = $9.8m/sec^2$). The wireless sensor node could work as the electric power generated by the developed piezoelectric harvester.

Keywords

References

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