An automatic method for power system stabilizers phase compensation design

This paper describes a computational technique for the phase shaping of the power system stabilizer in a power plant that will improve its contribution to the satisfactory damping of the generator rotor oscillations over the entire electromechanical frequency range: from the intraplant to the interarea modes. To this end, the method utilizes a synthetic system as test bench, in which the external system characteristic seen from the generator terminals is automatically changed, with a wide and coordinated variation in its parameters, to produce a sequence of electromechanical modes similar to those experienced by the generator and associated controllers when connected to a large multimachine power system.