Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/4317
Title: Wavelet based flickermeter
Authors: Guntupalli Ignatius Marien Sanjay.
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Electronic systems
Issue Date: 2004
Abstract: Wavelet Transform has been touted as an excellent signal processing technique for analyzing time-varying signal. It is challenging the well known Fourier-based technique, which is generally regarded as only suitable for stationary signal. Varying loads such as arc-furnaces and welding operations usually cause voltage fluctuation that leads to light flickering. As a result, the voltage magnitude will vary constantly and it appears that Wavelet Transform would be an ideal technique for detecting this fluctuation. Currently, short-time Fourier Transform is the favored method but with its fixed time and frequency resolutions, it is known to suffer from spectral leakages that distort the measurements, especially if the signal is varying. This dissertation explores the use of Wavelet technique to overcome this deficiency.
URI: http://hdl.handle.net/10356/4317
Schools: School of Electrical and Electronic Engineering 
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:EEE Theses

Files in This Item:
File Description SizeFormat 
EEE-THESES_364.pdf
  Restricted Access
8.4 MBAdobe PDFView/Open

Page view(s) 50

468
Updated on Jun 15, 2024

Download(s)

2
Updated on Jun 15, 2024

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.