Thermal Management of High-Current Bidirectional Isolated DC-DC Converters

To my family i ACKNOWLEDGMENTS The research presented in this thesis was conducted at Delft University of Technology, the Netherlands, in the Electrical Power Processing (EPP) group headed by Professor Braham Ferreira. This is the place where I spent six memorable years towards my Master and Ph.D. degrees. Many people have been involved during this time and this thesis would not be completed without their valuable company, help, encouragement, and support. I would like to take this opportunity to thank those involved directly and indirectly. First of all, I would like to thank my promoter Professor Ferreira, for giving me the opportunity to pursue both Master and Ph.D. degrees in his group and for his broad horizon, insightful guidance and brilliant ideas that inspire my Ph.D. work. After so many years I still remember clearly that it was to him that I made my first oral exam in English, and from that moment on, his support are always with me. I am deeply grateful to him. I would also like to express my sincere gratitude to Ir. Sjoerd W. H. de Haan, who is the weekly supervisor of my both Master and Ph.D. study. Thank him for so many interesting technical discussions and guidance, and for spending a large amount of precious time on editing and commenting my thesis. Only with his encouragement I could have made it this far. The research presented in this thesis was sponsored by Quattro and Gen Power Box projects from Mastervolt company and SenterNovem, a research fund from Dutch Ministry of Economic Affairs. I would like to thank Mastervolt, especially its R&D manager Mr. Arno van Zwam, for giving the opportunity to do my master thesis in Mastervolt and for the numerous discussions during my Ph.D. work. for the time and effort they took to read my thesis and for their comments and suggestions. In addition, I would like to thank my office roommate Dr. Bart Roodenburg, for your technical support in the first part of my Ph.D. work, and for so many helpful discussions about power electronics and the lifetime in Netherlands. Thanks for those years under the same roof. for so many enjoyable activities together. I am also very grateful to my colleagues in Philips Lighting, Patrick Zijlstra, Waipang Chow, Marcel Beij and Luc Vogels, for translating the propositions into Dutch. Special thanks to my Master Shifu, Christiaan van Wijk, for translating …