Dynamic Analysis and Stability of the Load Frequency Control in Two Area Power System with Steam Turbine

The aim of this paper is to model, analysis and simulation of load frequency control in two area power system and parameters variation effects. State equations of a LFC in two area power system for a steam turbine are proposed. Then by examining some factors such as tie-line stiffness, turbine time constant, inertia constant and damping factor, the frequency control methods and influence of a small load variation are discussed. Finally, the steady state change in frequency in different cases using Matlab is calculate and compared.