FACTS BASED CONTROLLER FOR INTERCONNECTED HYDROTHERMAL POWER SYSTEM

Abstract: This research paper introduce the FACTS based decentralized controller for load frequency control of two area interconnected hydrothermal power system considering the combined effect of RFB ( Redox Flow Batteries ) and TCPS ( Thyristor Control Phase Shifter ) as a FACTS device which is incorporated with tie-line power flow of the given system. The proposed controller is design using genetic algorithm based integral controller in which Integral Square Error (ISE) criterion is consider for the optimization of the system error. This proposed controller is implemented into the two area interconnected hydrothermal power system and its different performance is studies with and without RFB and TCPS control scheme. This studies revels that the proposed controller gives better transient responses and helps in better stabilizing frequency response as well as improve the tie line power flow of the system