Comparison of power system stabilizer design based on local and global model

Abstract

This paper introduces a localized phase compensation method for the design of power system stabilizers (PSSs) to suppress the oscillation occurred in a single-machine infinite-bus (SMIB) power system. The proposed method is used to design stabilizers to suppress power system oscillations and only requires the available generator and transformer parameters thus eliminating the need to receive and verify entire power system parameters. This paper establishes the extended linear Phillips-Heffron model for a SMIB system with a PSS installed in the generator and demonstrates application of the model to determine damping and thus preserve power system oscillation stability. The paper also presents several examples where the proposed method has been used with two models to design PSSs with comparative results presented in a case study.