Title page for etd-0611117-142445


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URN etd-0611117-142445
Author Chin-jung Wu
Author's Email Address No Public.
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Department Electrical Engineering
Year 2016
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Application of Power Harvesting Current Transformer for Fault Indicator
Date of Defense 2017-07-05
Page Count 94
Keyword
  • technology of power harvesting current
  • RF communication
  • intelligent fault indicator
  • super capacitor
  • current transformer
  • Abstract Because that the smart grid’s development is becoming common, more and more scientists pay attention to the maintenance and management of electricity. The system fault current could reach hundreds of times the rated current and we can return the cable state with communication technology to achieve the monitoring of power line and clean the fault, this thesis proposes a collection of smart grid distribution current and fault location system to execute the timely protection of the power line system. However, most of the monitoring device use a battery as a power supply with capacity and maintenance constraints in the past. Therefore, this thesis uses stably the power harvesting current technology combined with current measuring technology, to stably monitor the state of cable in real-time and to protect the power system. 
    The traditional fault indicators mostly use wired transmission and are not accurate. To save money and expand the site of installation, this paper uses wireless communication technology and current transformer measuring scheme. This thesis develops a current and autonomous power supply device by integration of a current power harvesting chip, a current transformer and a Radio-Frequency (RF) communication module.
    When the power line fault occurs, the abnormal line current can be detected by the application of fault indicator in smart grids. Then, the RF communication module would indicate the fault to the control station, to assist the maintenance person timely to indicate the fault and improve the power quality.
    Advisory Committee
  • Shih-Chieh Hsieh - chair
  • Hui-Jen Chuang - co-chair
  • Te-Tien Ku - co-chair
  • Chao-Shun Chen - advisor
  • Files
  • etd-0611117-142445.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2017-07-11

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