Robust Controller Design of Uncertain Large Scale Power Systems with Time-varying State and Input Delays

• Main Authors: Chien-Hua Wang, 王建華
• Other Authors: Ching-Hsiang Lee
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/52181429532837751513

碩士 === 國立高雄應用科技大學 === 電機工程系 === 97 === The problems of observer-based robust stabilization of uncertain linear system models of large scale power systems with time-varying state and input delays with norm-bounded parametric uncertainty are studied in this thesis. The Lyapunov-Krasovskii functionals are modified and expanded. Then, sufficient conditions are given for the existence of the state observer and observer-based robust controller for such uncertain system via the Lyapunov-Krasovskii functional. The detail design procedure of the state observer and observer-based robust controller are presented by solving two-stage two linear matrix inequalities (LMIs). Because of the length and complexity of the Lyapunov-Krasovskii functionals, the design methods in the literature are of two-stage ay present. The proposed idea is extended to investigate the problems of observer-based control. At the end of each subsection, practical examples are given to illustrate the effectiveness of the proposed approach.