
ii
AKNOWLEDGEMENTS
I would like to express my sincere gratitude to the supervisor, Assoc. Prof. Dr.
Duc Nguyen Huu, for his supervision, support, and encouragement throughout the
course of my research. He has motivated and inspired my research and was constantly
supportive of my endeavors. His profound expertise and insightful advice had been
invaluable in my research. Under his supervision, I not only built my research skills
but learnt a lot of interpersonal skills as well.
I am deeply appreciative of the Electric Power University's leadership, the
Postgraduate Training Department, the Faculty of Energy Technology, and the
Electrical Engineering Faculty, as well as professors, colleagues etc. who had
provided me assistance and motivation during the research.
I had the opportunity of collaborating with numerous fellow students and
engineers throughout my Ph.D. journey. I am sincerely grateful for their valuable
contribution.
Lastly, I would like to thank my wife and my beloved family. Their unconditional
love had been invaluable in maintaining my dedication and enthusiasm during the
research.
Hanoi, August 10th, 2023
Ph.D. Candidate
Van Nguyen Ngoc