Abstract
In this study, a new controller structure such as 2- Degree Of Freedom Proportional–Integral-Derivative through Filter and Fractional-Order Integral-Derivative (2DOF-PIDN-FOID) has been suggested for the regulation of frequency. To optimise the controller gains, a differential evolution (DE) technique has been employed. The investigation is made for two models, i.e. 2-area thermal and 2-area multi-source thermal-hydro-gas systems. The performance of the 2DOF-PIDN-FOID is analysed by equating the results with other newly available approaches, like Genetic Algorithm (GA), Bacteria Foraging Optimisation Algorithm (BFOA), hybrid BFOA and Particle Swarm Optimisation (hBFOA-PSO) and Firefly Algorithm (FA) for the similar structure. The suggested scheme is further examined with the second test system. Investigations reveal on the comparison that DE-tuned 2DOF-PIDN-FOID provides better results compared to recently published approaches. The experimental justification with real-time simulation has been carried out on the OPAL-RT simulator. It is noticed that real-time results closely match with simulation results.
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