Novel Target Loop-Based IMC-PID Control Law for LF Regulation in Power Systems

This paper introduces a novel PID (proportional-integral-derivative) control approach aimed at regulating load frequency within power systems. Employing a target loop-based IMC (Internal Model Control) strategy, the PID controller is meticulously designed, focusing on time domain specifications. The formulation of this design specifically caters to a single area power system (SAPS). Through rigorous simulation using a model of a SAPS, the paper demonstrates the superior efficacy of the proposed method compared to existing approaches. Furthermore, the robustness of the method is assessed through simulations on a perturbed system, where process parameters experience a significant <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$+50 \%$</tex> variation. Finally, the paper concludes with a comprehensive performance summary, highlighting various performance errors.