Design and analysis of search group algorithm-based PD-PID controller plus redox flow battery for automatic generation control problem
by Ramana Pilla; Tulasichandra Sekhar Gorripotu; Ahmad Taher Azar
International Journal of Computer Applications in Technology (IJCAT), Vol. 66, No. 1, 2021

Abstract: The ability of a Redox Flow Battery (RFB) is analysed in the present paper to minimise the tie-line power and frequency deviations of the five-area thermal power system. Initially, a power system network with five areas and a non-linearity of Generation Rate Constraint (GRC) is designed in MATLAB/SIMULINK environment. After that, the values of Proportional Derivative-Proportional Integral Derivative (PD-PID) controller are evaluated for the proposed system by using Search Group Algorithm (SGA). The best control parameters of PD-PID controller are selected by having objective function as Integral Time Multiplied Absolute Error (ITAE). Finally, the RFB is installed in area-1, area-2, area-3, area-4 and area-5 for dynamic response enhancement. Results of simulation show that, better transient response characteristics can be obtained by using PD-PID controller along with RFB in area-1. Further, the system is also tested after inclusion of two RFBs in the control areas. Finally, the robust analysis is also performed to show the capability of the proposed method.

Online publication date: Sat, 11-Dec-2021

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