IMPROVED DYNAMIC PERFORMANCES OF MULTI-AREA REHEAT THERMAL AGC POWER SYSTEMS WITH ENERGY STORAGE UNIT K.Jagatheesan

A fast acting energy storage SMES unit is considering for this investigation. The present paper shows the influence of SMES unit on the dynamic performance of the AGC system is investigated with PI controller. A simulink model of a three area interconnected reheat thermal power system is modeled with and without considering Super conducting Magnetic Energy Storage (SMES) unit effect. The time domain simulations are used to study the behavior of thermal power system and SMES system. The optimal gain values of P and I are obtained by using ITAE performance indices. Finally the simulation results reveals that SMES unit is very effectively reducing the peak overshoot, settling time, and peak time of frequency and tie-line power deviation in the power system