Dissertation > Excellent graduate degree dissertation topics show

Research and Application of Digital Measurement-Control Circuit for the Substation Secondary

Author: WeiXiaoJun
Tutor: ZhangYanXia;XuGuoZhong
School: Tianjin University
Course: Electrical Engineering
Keywords: secondary measurement-control circuit photoelectric transducer intelligent unit optical cable transmission digital substation
Type: Master's thesis
Year: 2010
Downloads: 66
Quote: 0
Read: Download Dissertation


With the trend of larger capacity and higher voltage of power grid in China, the improvement of the digital measurement and control is the basis for the high reliability and intelligence of the transformation equipment. And also it plays an important role in the safe production of electric power. With the constant development of the integrated substation automation technology and the photoelectron technology, further improvement on the secondary measurement and control and the full digital operation of substation is an inevitable trend.This paper describes the fundamental of photoelectric transducer, fiber digital combiner, synchronizer, intelligence unit, and photoelectric power meter, also the corresponding digital measurement and control circuit. Comparative analysis of the digital devices and the conventional devices is presented. Based on Inner Mongolia Power Grid 220kV Duerbote Substation digital rebuilding engineering, the overall reconstruction scheme for the information collection, transmission, processing, and output of the substation’s key measurement and control circuit are described. Sampling synchronization, electromagnetic interference and capacitance coupling derived from optical cable transmission, and other problems included in the scheme are investigated. Rebuilt substation operating results show that the digital secondary measurement-control circuit increases the speed of data transmission, reduces energy loss in transmission, minimizes the transmission error.In view of the present situation that there is no universal technical standard for the digital substation equipment maintenance and testing, standards and specifications for maintenance and testing are studied, related specifications for equipment calibrating are proposed, all of which provide advantages for the digital substation equipment maintenance and testing, and ensure the equipment running reliably.

Related Dissertations

  1. Study of Centralized Protection Based on Digital Substation,TM63
  2. Reliability and Security Study of the Digital Substation System,TM732
  3. Digital substation relay protection system reliability design technology,TM76
  4. Digital substation down power electronic transformer in applied research,TM76
  5. Research on the Application of Digital Substation,TM76
  6. Research on System of Fault Record in Digital Substation,TM63
  7. Research on Data Acquisition System of Digital Substation and the Protection Theory for Transformer Based on It,TM76;TM63
  8. Research on Current Differential Protection for Lines in Digital Substation,TM773
  9. Digital substation in Jinan grid,TM632
  10. Research on the Key Technologies of Digital Substation,TM63
  11. Fault Diagnosis of Electronic Instrument Transformer Based on Wavelet Neural Network,TM45
  12. Base on the IEC61850 of Zhiyan 500kV Digital Power Grid Substation’s Configuration of Relay Analyse and Discuss,TM76
  13. Research on Digital Protection Devices Test System Based on IEC61850,TM769
  14. Research on Communication System of Digital Substation and Technic of Transducer,TM63
  15. Digital substation information security and network reliability study,TM769
  16. Research and Practice of Communication Networks in Digital Substations Based on IEC 61850,TM73
  17. Substation based on IEC61850 standard technology applied research,TM76
  18. Digital substation small current grounding fault line selection program design,TM862
  19. Research and Development of OCT Interface Based on IEC61850,TM452
  20. Digital substation based on IEC61850 Communication Research,TM73

CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation
© 2012 www.DissertationTopic.Net  Mobile