Detection of flicker sources is the first step to mitigate the effect of flicker in power system. In this paper, in order to reduce the number of measurement devices, instantaneous voltages are estimated by using state estimation methods and then root mean square of the voltages and currents variation are detected and then sign of flicker powers is obtained in selected branches. By comparing the sign of flicker power with direction of fundamental active power, the places of flicker sources are obtained. For validation, the 6-bus non-radial network is simulated and algorithm for flicker sources detection is tested in this paper. The simulations results show that by using the proposed algorithm, all flicker sources in a non-radial network can be detected correctly.


Flicker Power Flicker Sources Non radial Network Power Quality 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Nassif, B., Nino, E.E., Xu, W.: A V-I Slope-Based Method for Flicker Source Detection. IEEE Transaction on Power Delivery 21, 755–760 (2006)CrossRefGoogle Scholar
  2. 2.
    Axelberg, P.G.V., Bollen, M.H.J.: Trace of Flicker Source by Using the Quantity of Flicker Power. IEEE Transaction on Power Delivery 23(1) (January 2008)Google Scholar
  3. 3.
    Dastfan, Mirzayi, M.R.: Identification of Dominate Flicker Source in Multi side Supplied Power Systems. International Review of Electrical Engineering (I.R.E.E.) 3(5) (September-October 2008)Google Scholar
  4. 4.
    Eghtedarpour, N., Farjah, E., Khayatian, A.: Intelligent Identification of Flicker Source in Distribution Systems. IET Generation, Transmission, Distribution 4(9), 1016–1027 (2010)CrossRefGoogle Scholar
  5. 5.
    Mazadi, M., Hosseinian, S.H., Rosehart, W.: Instantaneous Voltage Estimation for Assessment and Monitoring of Flicker Indices in Power System. IEEE Transaction on Power Delivery 22(3) (July 2007)Google Scholar
  6. 6.
    Moaddabi, N., Sadeghi, S.H.H.: A Lookup Method for Power System Flicker Source Detection Using Direction of Propagation. In: 13th International Conference on Harmonic and Quality of Power (2008)Google Scholar

Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2012

Authors and Affiliations

  • Jalal Khodaparast
    • 1
  • Ali Dastfan
    • 1
  1. 1.Department of Electrical and Robotic EngineeringShahrood University of TechnologyShahroodIran

Personalised recommendations