• Title, Summary, Keyword: 구조물건전도감시

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Vibration Powered Generator System for Stand-Alone Health Monitoring Sensor Unit (건전도 감시용 자립형 계측유닛을 위한 진동발전시스템)

  • 최남섭;김재민
    • Journal of the Earthquake Engineering Society of Korea
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    • v.7 no.2
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    • pp.85-92
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    • 2003
  • This paper presents an electric power generating system for stand-alone health monitoring sensor unit of bridge structure based on ambient vibration of bridge. In this paper, a novel electric power generator which has minimum effect of armature reaction is proposed. The related mechanical and electrical design equations are obtained, and a pilot generator has been implemented. In addition, the charging system for extremely low generator current is discussed, and some improvements are identified for the system. This investigation reveals that diode characteristics of rectifier is dominant factor in the charging process. Finally, both the simulation, which uses real measurement data of the Namhae bridge as input of the pilot generator, and indoor test are carried out. The results showed the applicability and effectiveness of the stand-alone vibration powered generator.

A Study on Stand-Alone Electric Power Generator Using Bridge Vibration (교량진동을 이용한 진동형 자가발전기에 대한 연구)

  • 최남섭
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.313-316
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    • 2003
  • This paper presents stand-alone electric power generator using bridge vibration for charging system of health monitoring sensor unit of bridge structure. In this paper, a novel electric power generator utilizing vertical vibration is proposed, which has minimum effect of armature reaction, and the related mechanical and electrical design equations are obtained and then a pilot electric power generator has been implemented. Moreover, the free oscillation test reveals that diode characteristics of rectifier is dominant factor in charging process. Also, simulation results with the Namhae bridge data showed the validity and effectiveness for stand-alone electric power generation.

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