CHOICE OF WINDING CONNECTIONS FOR WIDE SPEED RANGE INDUCTION MOTOR

Diplomsko delo obravnava načrtovanje takšnega statorskega navitja trifaznega asinhronskega motorja, ki omogoča obratovanje asinhronskega motorja s konstantno oddano močjo v širokem področju vrtljajev. Slednje je mogoče doseči z različnimi vezavami statorskega navitja. S programskim paketom emLook, ki temelji na analitičnimem izračunu asinhronskega motorja, sta bila izračunana in kasneje izdelana dva prototipa asinhronskih motorjev. Na obeh prototipih so izvedene meritve z namenom določitve elektromagnetnih in mehanskih karakteristik. Na podlagi rezultatov meritev je opravljena podrobna analiza obeh prototipov. Vse delo in meritve so bile opravljene v Laboratoriju za električne stroje (LABES) na fakulteti za elektrotehniko, računalništvo in informatiko Univerze v Mariboru.This diploma thesis is dealing with the design of three-phase stator winding, which enables that induction motor operate with the constant power in wide-speed region. The last one is possible to achieve with different connection types of stator winding. Two induction motor prototypes with different stator winding type connection were designed and manufactured. Both aforementioned prototypes were measured in order to determine electromagnetic and mechanic characteristics. Based on measured results exhaustive analysis was performed. All work and measurements were done at the Laboratory for Electrical Machines (LABES), Faculty of Electrical Engineering and Computer Science, University of Maribor