Artículos de revistas
Single real transformation matrices applied to double three-phase transmission lines
Registro en:
Electric Power Systems Research. Elsevier Science Sa, v. 78, n. 10, n. 1719, n. 1725, 2008.
0378-7796
WOS:000259161800009
10.1016/j.epsr.2008.03.001
Autor
Campos, JCC
Pissolato, J
Prado, AJ
Kurokawa, S
Institución
Resumen
Single real transformation matrices are tested as phase-mode transformation matrices of typical symmetrical systems with double three-phase and two parallel double three-phase transmission lines. These single real transformation matrices are achieved from eigenvector matrices of the mentioned systems and they are based on Clarke's matrix. Using linear combinations of the Clarke's matrix elements, the techniques applied to the single three-phase lines are extended to systems with 6 or 12 phase conductors. For transposed double three-phase lines, phase Z and Y matrices are changed into diagonal matrices in mode domain. Considering non-transposed cases of double three-phase lines, the results are not exact and the error analyses are performed using the exact eigenvalues. In case of two parallel double three-phase lines, the exact single real transformation matrix has not been obtained yet. Searching for this exact matrix, the analyses are based on a single homopolar reference. For all analyses in this paper, the homopolar mode is used as the only homopolar reference for all phase conductors of the studied system. (C) 2008 Elsevier B.V. All rights reserved. 78 10 1719 1725