An optimal frequency regulation in interconnected power system through differential evolution and firefly algorithm

Autor: Dillip K Mishra, Asit Mohanty, PRAKASH K RAY
Rok vydání: 2023
Předmět:
Zdroj: Soft Computing.
ISSN: 1433-7479
1432-7643
DOI: 10.1007/s00500-023-08314-6
Popis: Automatic generation control is extensively used to regulate power plants in a modern area of the power system network. In this paper, automatic generation and frequency control in interconnected power system is presented. A multisource such as thermal, hydro, and gas based power plant is considered in this study, which is carried out by incorporating non-linearity like generation rate constants, HVDC link, and the conventional PID controller design. Further, an optimal setting of the PID controller is performed by employing evolutionary and metaheuristic algorithm-based approach such as differential evolution and firefly algorithm, respectively. The robustness of the proposed controllers is assessed based on comparative analyses to regulate the interconnected power network's frequency profile under different loading conditions. The stability analysis is performed using the Eigen and Nyquist plots to assess the proposed controllers' efficacy. Besides, frequency control study is augmented with comparative assessment through various performance indices such as settling time, peak overshoot and undershoots under different operating conditions. Finally, the proposed control scheme, in the interconnected power system, is validated through a real-time digital simulation platform, i.e., OPAL-RT 5142. The comparison of simulation and real-time results demonstrate the effectiveness of the FA-optimized PID controller in comparison to that of De-optimised PID controller.
Databáze: OpenAIRE
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