Stability and Stabilization of Sampled-Data Based LFC for Power Systems: A Data-Driven Method

Dear Editor, This letter is concerned with stability analysis and stabilization design for sampled-data based load frequency control (LFC) systems via a data-driven method. By describing the dynamic behavior of LFC systems based on a data-based representation, a stability criterion is derived to obtain the admissible maximum sampling interval (MSI) for a given controller and a design condition of the PI-type controller is further developed to meet the required MSI. Finally, the effectiveness of the proposed methods is verified by a case study.