Coordinated tuning of power system stabilizers in multimachine power systems

Coordinated tuning of proportional-integral power system stabilizers in multimachine power systems

“…Therefore, it would be very difficult to find the determinant on the right of (il) by a digital computer. In fact, this is the reason why a sequential algorithm [18] or an iterative algorithm [16 -18, 21 -23] was employed in previous works.…”

“…The conventional PSS which is widely employed by the utilities is a lead-lag network used for improving the phase lag in the system. Several approaches to the simultaneous tuning of conventional PSS parameters in multimachine power systems have been reported in the literature [13][14][15][16][17][18][19][20][21][22][23]. Reference 13 is mainly concerned with the application of eigenvalue analysis to the identification of the most effective PSS locations.…”

“…A major disadvantage of this method is that the sequential addition of stabilizers will disturb the previously assigned eigenvalues. In order to avoid this undesirable effect of eigenvalue drift, several approaches to the simultaneous tuning of stabilizer parameters have been proposed [16][17][18][19][20][21][22][23]. Reference 16 employs the concepts of synchronizing and damping torque coefficients for stabilizer tuning.…”