Dissertation > Excellent graduate degree dissertation topics show

Research on Voltage Flicker Detection and Flicker Source Identification

Author: ChenQing
Tutor: ZhaoChengYongï¼›JiaXiuFang
School: North China Electric Power University (Hebei)
Course: Proceedings of the
Keywords: Voltage fluctuation and flicker Teager energy operator Hilbert transform fractal theory flicker source identification LabVIEW
CLC: TM933.2
Type: Master's thesis
Year: 2009
Downloads: 180
Quote: 3
Read: Download Dissertation

Abstract


Voltage fluctuation and flicker is an important aspect of power quality. Taking effective measurements of voltage fluctuation and find out the flicker source are significant to the compensation of voltage fluctuation. This paper analyzed the measurement performance of Teager energy operator, Hilbert transform and square demodulation of flicker without harmonics and with harmonics. After extracting the flicker envelope, the flicker frequency and amplitude error, and short-term flicker severity Ps t error are calculated. Besides the fractal dimension of RMS load voltage and current is presented as the characteristic parameter to tell the difference between the flicker source and non-flicker source. The simulation data by PSCAD and field data show the accuracy of the theory. Finally the flicker detection and source identification system is established by vitual instrument LabVIEW. By setting the input parameters and choosing the way of estimation threshold, the flicker source can be located correctly, and the flicker components and modulation factors can be calculated.

Related Dissertations

  1. Image Analysis System of Metal Transfer of Gas Metal Arc Welding,TG444
  2. Research on Nozzle Plume Temperature Distribution Measurement System,V434
  3. The Electrostatic Dust Removal System Based on Microcontroller and LabVIEW,X701.2
  4. Oil -in-water type emulsified oil water hammer harmonic LabVIEW Simulation and Experimental Research demulsification,X703
  5. LabVIEW-based virtual oscilloscope design and remote control,TM935.3
  6. Axial fan blade vibration non-contact measurement,TD441.2
  7. Design of Analysis System of Audio Signals Based on Virtual Instrument,TP274
  8. Optical Hilbert Transform Based on Fiber Bragg Gratings,TN253
  9. Research cylinders detection system mold width,TF341.6
  10. Research on Geological Dynamic Condition and Its Control on Coal and Gas Outburst in Pingdingshan 8th Mine,TD713
  11. Research and Application of Remote Virtual Instrument Experimental Teaching System Based on LabVIEW,TP391.6
  12. The Design and Exploitation of Furnace Temperature Measurement and Control System Based on LabVIEW,TP274
  13. Research on Thin-Film Hysteresis Loop Measurement System Based on Extraordinary Hall Effect,O484.43
  14. Development of Microgrid Data Acquisition System Based on LabVIEW,TP274.2
  15. Optimization of the Matching Pursuit Algorithm and Its Application on Fault Diagnosis for Rolling Element Bearing,TH165.3
  16. Design and Realization of Avionics System Simulation Platform Based on Virtral Instruments,TP274
  17. Research and Design of Gas Turbine Fault Detection and Diagnosis System Based on Labview and Modbus Fieldbus,TK478
  18. Research of Instantaneous Detection Technology of Miniature Circuit Breaker Based on Virtual Instrument Featues,TM561
  19. Power Quality Parameters Monitoring and Analysis System Based on Vertrual Instrument,TP274
  20. Development and Experimental Study about Virtual Instruments of Vibration Test and Analysis System and Combustion Analyzer,TK407
  21. Based on closed-loop control design electrical nerve stimulation,R742.1

CLC: > Industrial Technology > Electrotechnical > Electrical measurement techniques and instruments > Power the number of measurements and instrumentation > Voltage measurement and instrumentation
© 2012 www.DissertationTopic.Net  Mobile