Local PSS design for inter-area oscillation in northern regional power grid of India

This paper presents the study on local PSS control for Northern Regional Power Grid (NRPG) system of India. The complete analysis is conducted in MATLAB®. Power System Toolbox (PST) is used to obtain the linearized state space model of NRPG. Eigenvalue analysis suggests one poorly damped inter-area mode. The locations for two local Power System Stabilizers (PSSs) are suggested by modified residue approach. The PVr characteristics of the generators are used to design the compensating blocks of local PSSs which is the key step in PSSs design. For large scale power systems, MATLAB is used first time for designing the compensating blocks of PSSs by using its latest app, “control system designer”.