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This brief proposes a novel improved model-free adaptive control (IMFAC) algorithm to address the load frequency control (LFC) problem in multi-area power systems. A new three-term criterion function is introduced and integrated into the traditional MFAC framework for the first time. By incorporating system state increments into the control input computation, the proposed algorithm enhances the suppression of overshoots and oscillations caused by frequency deviations due to sudden load changes. Moreover, the algorithm is entirely data-driven, eliminating the need for mathematical modeling of complex power system dynamics. The effectiveness of the proposed method is validated through theoretical analysis and simulation on a three-area power system.
Chen et al. (Wed,) studied this question.