Enhanced Non‐Fragile Dissipative Load Frequency Control for Multi‐Area Power Systems With High Penetration Wind Power: A Reconfiguration‐Based Framework

This paper studies the issue of non‐fragile dissipative load frequency control (LFC) for multi‐area power systems. Firstly, the impacts of high penetration wind power (HPW) and multiple time‐varying delays (MTD) are considered to establish the LFC model. Then, reconfiguration technology is employed, improving the computational efficiency of stability analysis. Especially, this technology can dynamically partition the model according to time delays. Subsequently, a Lyapunov–Krasovskii function (LKF) is constructed, which includes delay terms, effectively reflecting the impact of multiple delays on stability analysis. Next, the novel integral inequality is used to solve the integral terms in the LKF, thereby significantly reducing the conservatism of the stability criterion. In addition, the non‐fragile dissipative controller (NFDC) is designed, considering controller gain disturbances. It solves two types of uncertainty problems and thus improves the robustness of the power system. Finally, the superiority of the stability criterion and the effectiveness of the control method are verified through simulation experiments.