A simplified model for load frequency control in deregulated power systems

This paper presents a simplified model for load frequency control (LFC) in deregulated power systems. LFC in deregulated power system is modeled by modifying conventional model with inclusion of bilateral contracts. Bilateral contracts will allow DISCOs in one area to get power from another area. This inclusion complicates the design of the controller by adding the contracted power also along with the disturbance power. New LFC model facilitates us to design the controller without considering bilateral contracts which works for power system with bilateral contracts also. And concentrates only the load disturbances not on the contracted loads. The proposed new AGC model is simulated in MATLAB environment and results were presented.