Adaptive power system stabilizer design for multi-machine power systems

Dynamic stability enhancement of electro-mechanical modes of multi-machine power systems by means of an adaptive power system stabilizer is discussed here. The proposed adaptive PSS is a varietal configuration to self-adjusted tracking the system operation condition. The parameter optimization program is used to obtained the optimal parameter of every PSS under single operating conditions, the weighing coefficient is employed to adapt the actual operating condition. The study is carried out in details on a great of testing computation and analysis on a 8-machine testing system. Obtained result is compared with that of the previous PSS.