Design and tuning aspects of a PSS based on the complete nonlinear synchronous generator model

A new insight is given in the analysis of the standard power system stabilizer (PSS) design problem that results in some important methodology novelties. The problem is investigating in a new manner based on the complete nonlinear model of the synchronous generator (SG), in combination with the well-known lead-lag compensator characteristics. According to the deployed theoretical analysis, a novel, simple and reliable PSS design procedure is established that is expected to contribute to the system stability and good response with clearly smooth and fast damping on the local frequency oscillatory behaviour of the SG. Following the proposed methodology, different design and gain tuning cases are examined by conducting extended simulations. All the comparisons between the results, fully confirm the theoretical analysis and indicate the superiority of the proposed design procedure.