Changsheng Hua - Reinforcement Learning Aided Performance Optimization of Feedback Control Systems

Von der Fakultt fr Ingenieurwissenschaften, Abteilung Elektrotechnik und Informationstechnik der Universitt Duisburg-Essen zur Erlangung des akademischen Grades Doktor der Ingenieurwissenschaften (Dr.-Ing.) genehmigte Dissertation von Changsheng Hua aus Jiangsu, V.R. China.

1. Gutachter: Prof. Dr.-Ing. Steven X. Ding

2. Gutachter: Prof. Dr. Yuri A.W. Shardt

Tag der mndlichen Prfung: 23.01.2020

Responsible Editor: Stefanie Eggert

This Springer Vieweg imprint is published by the registered company Springer Fachmedien Wiesbaden GmbH part of Springer Nature.

The registered company address is: Abraham-Lincoln-Str. 46, 65189 Wiesbaden, Germany

First and foremost, I am deeply indebted to my advisor, Prof. Dr.-Ing. Steven X. Ding, for his guidance, encouragement and insightful discussions during my Ph.D. studies. He has continually pointed me in the right direction and provided me inspiration to do the best work I could. I would also like to express my heartfelt appreciation to Prof. Dr. Yuri A.W. Shardt, who has sparked my interest in performance optimization of control systems and mentored me a lot. He has shared with me his rich experience in academic research and scientific writing. I feel very lucky to have him as one of my major collaborators.

I would particularly like to give thanks to Dr.-Ing. Linlin Li and Dr.-Ing. Hao Luo for many insightful discussions and constructive comments during my studies. From both of them, I have learned a lot on robust and optimal control. I would also like to thank Dr.-Ing. Birgit Kppen-Seliger, Dr.-Ing. Chris Louen, Dr.-Ing. Minjia Krger and Dr.-Ing. Tim Knings for giving me support and valuable advice in supervision of exercises and research projects.

I owe a great debt of gratitude to Dr.-Ing. Zhiwen Chen, Dr.-Ing. Kai Zhang, Dr.-Ing. Yunsong Xu, Dr.-Ing. Lu Qian, who offered enormous help and support during the early days of my life in Duisburg. I am particularly thankful to M.Sc. Micha Obergfell, M.Sc. Yuhong Na, M.Sc. Frederick Hesselmann, M.Sc. Hogir Rafiq, M.Sc. Ting Xue, M.Sc. Deyu Zhang, M.Sc. Reimann Christopher, M.Sc. Caroline Zhu, M.Sc. Yannian Liu, M.Sc. Tieqiang Wang, M.Sc. Jiarui Zhang for making my life in AKS much enjoyable, and for giving me valuable suggestions, generous support and encouragement. I would like to extend my thanks to numerous visiting scholars for all the advice, support, help and the great times. I am also very grateful for the administrative and technical assistance given by Mrs. Sabine Bay, Dipl.-Ing. Klaus Gbel and Mr. Ulrich Janzen.

Lastly, I would like to dedicate this work to my family, to my parents for their unconditional love and care, to my brother for igniting my passion for engineering and all the years of care and support, and especially to my dear wife Xiaodi for being with me all these years with patience and faithful support.