Dynamic Analysis And Stability Of The Load Frequency Control In Two Area Power System With Steam Turbine

In this paper a new robust load frequency controller for two area interconnected power system is presented to quench the deviations in frequency and tie line power due to different load disturbances. The dynamic model of the interconnected power system is developed with the integral control. Basic dynamic model representation of a two area power system given in the reference [2] is considered and the responses of two area power systems are evaluated. The so called Load Frequency Control Problem is restructured as a state transfer problem and using a suitable control strategy the system should be transferred from an initial state to the final state without any oscillations (if possible) in frequency deviations and tie line power deviations and thereby the time to reach final steady state is very much reduced. The MATLAB/Simulink based simulations are provided and the results in terms of different constants like inertia constant, integration constant, and the turbine constant are studied.