Genetic Algorithm Based Decentralized Controller for Load-Frequency Control of Interconnected Power Systems with RFB Considering TCPS in the Tie-Line 1

This paper proposes a design of Genetic Algorithm (GA) based controllers for the decentralized load-frequency control of two-area interconnected thermal reheat power systems with and without Redox Flow Batteries (RFB) considering Thyristor Controlled Phase Shifter (TCPS) in the Tie-line. The GA based integral controllers are designed using Integral Square Error (ISE) Criterion. The proposed controllers are implemented in a two-area interconnected thermal power system with and without RFB and TCPS. The output response of the system frequency, tie-line power and control input deviations for 1% step-load disturbance are presented by simulating the system. The result reveals that, the controller provides better transient response and smaller settling time, for the two-area interconnected power systems considering RFB and TCPS when compared with the output responses obtained for the two-area interconnected power system without RFB and TCPS.