• DocumentCode
    2054555
  • Title

    The time skew problem in PMU measurements

  • Author

    Qing Zhang ; Vittal, V. ; Heydt, G. ; Chakhchoukh, Y. ; Logic, N. ; Sturgill, S.

  • Author_Institution
    Dept. of Electr., Comput. & Energy Eng., Arizona State Univ., Tempe, AZ, USA
  • fYear
    2012
  • fDate
    22-26 July 2012
  • Firstpage
    1
  • Lastpage
    6
  • Abstract
    In this paper, the time skew problem observed in synchronized phasor measurement unit (PMU) measurements is illustrated and analyzed. The term `time skew´ is used to describe the faulty sychronization of measurements from different PMUs which are expected to be synchronized based on the time stamps. The origin of the time skew is presented and a practical example is provided to depict the time skew existing in actual PMU measurements. A Kalman filter model is proposed to compensate for the time skew error.
  • Keywords
    Kalman filters; phasor measurement; power system faults; Kalman filter model; PMU measurements; faulty sychronization; synchronized PMU; synchronized phasor measurement unit; time skew error; time skew problem; Clocks; Kalman filters; Phase measurement; Phasor measurement units; Synchronization; Voltage measurement; Kalman filter; phasor measurement units; time skew;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Power and Energy Society General Meeting, 2012 IEEE
  • Conference_Location
    San Diego, CA
  • ISSN
    1944-9925
  • Print_ISBN
    978-1-4673-2727-5
  • Electronic_ISBN
    1944-9925
  • Type

    conf

  • DOI
    10.1109/PESGM.2012.6345142
  • Filename
    6345142
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2054555