تجزیه و تحلیل قوی از کنترل بار فرکانس غیرمتمرکز برای سیستم های قدرت چندمنطقه ای

Robust analysis for decentralized load frequency control (LFC) for multi-area power systems is studied in this paper. It is observed that such an analysis can be decomposed into two steps considering the inherent structure of a multi-area power system: robustness analysis against the parametric variations in local-area power systems and robustness analysis against the structure and/or magnitude variations in the tie-line power flow network. A detailed structured singular value method is proposed for local-area robustness analysis, and an eigenvalue method is derived for tie-line robustness analysis. The proposed method is then applied to a four-area power system and the results show that the method is convenient and useful for decentralized load frequency control of multi-area power systems.