Design of robust H/spl infin/ PSS via normalized coprime factorization approach

In this paper, a new robust design of Power System Stabilizer (PSS) using H/sub /spl infin// control via Normalized Coprime Factorization (NCF) approach is proposed. The design procedure of H/sub /spl infin// PSS in a single machine connected to an infinite bus (SMIB) system is systematically described. The technique to simplify the problem associated with the selection of weighting function in H/sub /spl infin// control design is presented. The performance and robustness of the H/spl infin/ PSS are evaluated in comparison with the conventional PSS. Simulation study confirms the significant effects of the proposed H/sub /spl infin// PSS.