Effect of different controllers and capacitive energy storage on two area interconnected power system model using Matlab Simulink

This paper presents the analysis of automatic generation control (AGC) of interconnected thermal-thermal power system each containing two units in the conventional environment. The improvement of AGC with the addition of a small capacity capacitive energy storage (CES) unit with different type of controllers in both the areas is studied. Time domain simulations are used to study the performance of the power system and control logic. Suitable method for controlling the thermal-thermal power system is described. Analysis reveals that CES unit fitted in either of the areas is as effective as CES units fitted in both the areas and improves the dynamic performances a considerable extent following a load disturbance in either of the areas. Simulation studies carried out on a two-area interconnected power system each containing two units, with and without considering CES units, shows that the proposed control schemes are very effective for the generators taking part in load following.