Real‐time monitoring of the operation state of wide‐area transmission line links has
become possible with the help of phasor meter units. Synchronized information
acquired by phasor meter units needs to be adequately processed to permit the accurate
estimation of the line constants of the transmission link. In this paper, a novel
general rigorous compact procedure for correctly processing the measured voltage
and current phasors of uniform multiconductor transmission line systems is proposed.
The procedure based on the ABCD matrix and on modal analysis techniques
applies to transposed or untransposed multiconductor transmission lines, with arbitrary
geometry, number of conductors, and length. The proposed algorithm, adequate
for multiport structures, avoids the approximations usually required by
ordinary methods mostly focused on lumped parameters and on 2‐port approaches.
The proposed matrix procedure is illustrated and validated using simulation results.