Dissertation > Excellent graduate degree dissertation topics show

The Research of Optical Fiber Current Transformer Detection System

Author: LinLeLe
Tutor: JiaDanPing
School: Shenyang University of Technology
Course: Detection Technology and Automation
Keywords: Current Transformer Optical Fibre Fluorescent Decay
CLC: TM452
Type: Master's thesis
Year: 2008
Downloads: 156
Quote: 1
Read: Download Dissertation

Abstract


As important equipments in electric power industry, current transducers play a primary role for working well and calculating precisely in power supplying system. With the development of national economy, new high voltage level emerges continuously, and high accuracy of calculation and protection are demanded increasingly. It is an unavoidable trend that electric current transducer substitutes the old electromagnetic current transducer. The research searches for a new way of current measurement and borrows ideas from old current transducers, however the way we deal with the secondary current is different from others.The whole system is achieved as follows, the secondary current is coupled from electric network by current transformer, which is changed to heat by a sensitive resistor. Therefore the power turns into heat. The lifespan of fluorescent material’s decay time is only affected by temperature. The decay of fluorescent material is sampled by AD conversion. The lifespan of fluorescent material’s decay is measured by MCU. At last, we can measure the high current.The main contents of the research are as follows. At aspect of hardware design, we magnify the weak signal of decay at first. Secondly, we make the magnified decay be sampled by AD conversion. Finally, we can measure the high current with acquired data and math method. At aspect of software design, we analyse the decay signal through MATLAB and draw the picture of spectrum line of decay. Another, we compare two method of data dealing with.

Related Dissertations

  1. Detection of Paenibacillus Polymyxa by Fluorescent in Situ Hybridization and Its Application in Pig Slurry Compost and Soil,S144
  2. Characterization of Population Structure and Linkage Disequilibrium of Chinese Wild Soybean Population and QTL Association Analysis of Traits Related to Breeding for Soybeans,S565.1
  3. Effects and Mechanisms of Essential Oils on Quality Maintenance in Postharvest Starawberry and Chinese Bayberry Fruit,S667.6
  4. Proliferation Characteristics of Type 2 Porcine Circovirus Strains and Antivirus Activity of Iprs and Aps on PCV2 in Vitro,S858.28
  5. Identification of Genes Related to Virulence of Fusarium Graminearum and Biopaning of DON Toxin Specific Affinity Peptides,S432.4
  6. The Genetic Diversity of 12 STR Loci in Four Dog Breeds and the Application in Individual Discrimination,S829.2
  7. Synthesis and Analysis of Coumarin-fluorescent Probes,O657.3
  8. The Research of Electronic Current Transformer and Its Communication Interface,TM452
  9. Oil inverted current transformer main insulation field analysis and optimization,TM452.3
  10. Automatic Target Recognition fluorescent magnetic particle inspection image processing techniques,TP391.41
  11. Rogowski -type current transformer , high-performance design and research,TM452
  12. Artificial neural network applications in busbar protection,TP183
  13. Construction and Genetic Transofrmation of the Rice Chloroplast-specific Expression Vector,S511
  14. Effects of Aleppo Gall on Enamel Mineralization in Vitro Experiments,R780.2
  15. On the Black Humor in Vonnegut’s Novels,I712
  16. Purificiation of Cryptococcus Laurentii Lipase and Rapid Measurement of Lipase Thermostability,Q78
  17. Establishment of Detection Method of Equine Influenza Virus,S852.65
  18. Optical Properties of Zn-based Quantum Dots and Application in LED,O471.1
  19. Study on Synthesis of Ester-soluble Polyurethane and Application in Ink,TQ638
  20. Submerged arc furnace unbalanced three-phase symmetrical component analysis method,TM933.1
  21. Research on Phase Correlation Current Differential Protection of Transmission Line,TM771

CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Transformer > Current transformer
© 2012 www.DissertationTopic.Net  Mobile