Global control design and its applications to power systems

Abstract

First and foremost, I would like to express my sincere appreciation to my supervisor, Associate Professor, Wang Youyi for his invaluable instructions, directions, and consistent encouragement throughout my Ph.D. candidature. He always provided thoughtful guidance that contributed a lot to this thesis. I am deeply impressed by his broad interests and high enthusiasm to research. I am grateful to Nanyang Technological University for providing me research scholarship to carry out this research project. The invaluable collaborations with Professor David J. Hill of The Australian National University have resulted in new direction of research work. Many thanks are given to Professor Choi San Shing for his suggestions, help and encouragement. I would like to thank all technical staff of Power System Research Lab and Power Electronics and Drives Lab for their kind support in my research work, including Mr.

Advanced control of large-scale power systems with integration of renewable energy sources

“…This transformation is an exact state feedback instead of a Taylor approximation. Therefore, the DFL can transform the system into linear dynamics over much wider ranges [78]. , and define a new variable ∆ ( ) = ( ) − , then we will have where ̇( ) is the derivative of susceptance that is not bounded in the moment of fault or circuit breaker switching.…”

“…For each of the partial models, the following process can be used for designing a decentralized robust controller [74], [78]- [80].…”