Control and measuring method for three phase induction motor with improved efficiency [Elektronische Ressource] / von Emad Ahmed Hussein Abdelkarim

Control and Measuring Method for Three Phase Induction Motor with Improved Effi-ciency Vom Fachbereich 18 Elektrotechnik und Informationstechnik der Technischen Universität Darmstadt zur Erlangung des akademischen Grades eines Doktor-Ingenieurs (Dr.-Ing.) genehmigte Dissertation von Dipl.-Ing. Emad Ahmed Hussein Abdelkarim Geboren am 07. Oktober 1977 in Qena, Egypt. Referent: Prof. Dr.-Ing. Peter Mutschler Korreferent: Prof. Dr. -Ing. Ralph Kennel Tag der Einreichung: 26.10.2010 Tag der mündlichen Prüfung: 04.02.2011 D17 Darmstadt 2011 Preface This PhD thesis is the result of four years work at the Department of Power Elec-tronics and Control of Drives, Darmstadt University of Technology. Throughout this period many people contributed to my research in various ways, some directly, oth-ers indirectly related to the work presented in this thesis, but all were very helpful. First I wish to express my gratitude to Prof. Dr.-Ing. Peter Mutschler, my supervi-sor, for his guidance, encouragement, inspiration, and valuable arrangements during this research. I greatly appreciate his patience in scrutinizing this thesis. His pains-taking efforts and competence guidance helped me through out my project. His keen interest boosted my motivation further and encouraged me for making my work a successful. I would sincerely thank Prof. Dr.-Ing.