• DocumentCode
    3047710
  • Title

    Single real transformation matrix application for asymmetrical three-phase line transient analyses

  • Author

    Prado, A.J. ; Kurokawa, S. ; Filho, J. Pissolato ; Bovolato, L.F.

  • Author_Institution
    Dept. of Electr. Eng. at UEL, State Univ. of Londrina, Londrina
  • fYear
    2008
  • fDate
    13-15 Aug. 2008
  • Firstpage
    1
  • Lastpage
    6
  • Abstract
    Single real transformation matrices can change the Z and Y matrices into diagonal ones for transposed three-phase lines. Considering non-transposed non-symmetrical three-phase lines, the errors between the Clarkepsilas matrix application results (called quasi-modes) and the eigenvectors are negligible. In this text, some other analyses are performed for two line designs. So, the arithmetic media among error curves tends to zero for every design. The non-diagonal elements of the quasi-mode matrix are compared to the correspondent eigenvalues. There are non-diagonal elements that present significant relative values when compared to the eigenvalues. Using all these analyses, it is suggested the hypothesis that the interactions among the Clarkepsilas matrix application, the non-symmetrical line characteristics and propagated signal spectrum can be maximizing the error of the proposed single real transformation matrix application. Because of this, in future development, correction procedures should be applied to Clarkepsilas matrix searching for minimizing the non-diagonal elements of the quasi-mode matrices.
  • Keywords
    matrix algebra; power system transients; transmission networks; asymmetrical three-phase line transient analyses; quasimode matrices; quasimode matrix; single real transformation matrix; transposed three-phase lines; Admittance; Eigenvalues and eigenfunctions; Equations; Frequency dependence; Impedance; Performance analysis; Symmetric matrices; TV; Transient analysis; Transmission line matrix methods; Clarke matrix; asymmetrical lines; eigenvalue; eigenvector; error analysis; frequency dependent parameters; phase-mode transformation;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Transmission and Distribution Conference and Exposition: Latin America, 2008 IEEE/PES
  • Conference_Location
    Bogota
  • Print_ISBN
    978-1-4244-2217-3
  • Electronic_ISBN
    978-1-4244-2218-0
  • Type

    conf

  • DOI
    10.1109/TDC-LA.2008.4641727
  • Filename
    4641727