Abstract:
This paper investigates the load frequency control problem for a multi-area power system taking
into consideration system parameter variations. This paper proposes an intelligent control scheme
for load frequency control (LFC) of interconnected power systems. A fuzzy logic based integral
controller is proposed for two area power system interconnected via parallel ac/dc transmission
link. The simulation studies are carried out for a two area interconnected power system with
reheat steam turbine for simplicity and without loss of generality. Suitable solution for load
frequency control problem of two areas electrical power system is obtained by means of improving
dynamic performance of power system under study. Robustness of controller is also checked by
varying parameters. Simulation results indicate that the proposed control scheme work well when
compared with others.