IEEE TRANSACTIONS ON POWER SYSTEMS, cilt.31, sa.1, ss.829-830, 2016 (SCI-Expanded)
This letter proposes a graphical method to compute the stabilizing values of proportional-integral (PI) controller parameters for a single-area load frequency control (LFC) system with time delay. The method is based on the stability boundary locus. The stability region is displayed in controller parameter space and time-domain simulation studies are carried to verify the accuracy and effectiveness of the proposed method.