A simulated annealing (SA) based approach to power system stabilizer (PSS)
and FACTS based stabilizer tuning has been investigated in this paper. The
design problem of PSS and FACTS based stabilizer is formulated as an optimi
zation problem. An eigenvalue-based objective function to increase the syst
em damping is proposed. Then, SA algorithm is employed to search for optima
l stabilizer parameters. Different control schemes have been proposed and t
ested on a weakly connected power system with different disturbances, loadi
ng conditions, and parameter variations. Nonlinear simulation results show
the potential of SA algorithm to the tuning problem of PSS and FACTS based
stabilizer. Effectiveness and robustness of the proposed control schemes ov
er a wide range of loading conditions and system parameter variations have
been demonstrated. It was also observed that the SPS controller provides mo
st of the damping, and improves greatly the voltage profile of the system u
nder severe disturbances. (C) 2000 Elsevier Science Ltd. All rights reserve
d.