University of SaskatchewanHARVEST
  • Login
  • Submit Your Work
  • About
    • About HARVEST
    • Guidelines
    • Browse
      • All of HARVEST
      • Communities & Collections
      • By Issue Date
      • Authors
      • Titles
      • Subjects
      • This Collection
      • By Issue Date
      • Authors
      • Titles
      • Subjects
    • My Account
      • Login
      JavaScript is disabled for your browser. Some features of this site may not work without it.
      View Item 
      • HARVEST
      • Electronic Theses and Dissertations
      • Graduate Theses and Dissertations
      • View Item
      • HARVEST
      • Electronic Theses and Dissertations
      • Graduate Theses and Dissertations
      • View Item

      An Iterative Technique for Real Time Tracking of Power System Harmonics

      Thumbnail
      View/Open
      Pooranalingam_Pathmakumar_Jeffrey_2002_sec.pdf (43.79Mb)
      Date
      2002
      Author
      Pooranalingam, Pathmakumar Jeffrey
      Type
      Thesis
      Degree Level
      Masters
      Metadata
      Show full item record
      Abstract
      Since the power quality became a serious concern for the utilities and consumers, harmonic monitoring has been of vital importance. A number of algorithms for estimating harmonics have been proposed in the past. Due to various power system conditions and number of computations involved, these algorithms are not suitable for real-time harmonic estimation. A short study of pitfalls in these techniques and their effect on harmonic estimates are presented. The thesis describes an iterative technique based on orthogonal filters and frequency tracking to estimate harmonic components in power systems. The technique use frequency interpolation to estimate fundamental frequency and harmonics when the nominal frequency of the signal is a non-integer value. Due to the number of computations involved during the generation of filter coefficients, off-line computations are suggested. The beneficial features of the proposed technique include fixed sampling rate and fixed data window. The performance of the proposed technique was studied by simulating different power system operating conditions and data from these simulations were used for evaluations. FFT based technique was also applied to estimate harmonic components for all the simulated signals. These estimates were compared with those obtained from the proposed technique. It has been shown that the proposed technique can converge to accurate fundamental frequency and therefore, provide accurate harmonic estimates even when the fundamental frequency is not equal to the nominal frequency.
      Degree
      Master of Science (M.Sc.)
      Department
      Electrical and Computer Engineering
      Program
      Electrical Engineering
      Supervisor
      Sidhu, T. S.
      Copyright Date
      Fall 2002
      URI
      http://hdl.handle.net/10388/8174
      Collections
      • Graduate Theses and Dissertations
      University of Saskatchewan

      University Library

      © University of Saskatchewan
      Contact Us | Disclaimer | Privacy