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Electric machinery course is of an immense importance for students graduating in electrical engineering education. Since the electric machines environment is incessantly changing, especially with the introduction of electronic drives, computers and shipboards systems, then the revision of their curricula and the modernization of their experimental labs have been an unavoidable necessity. This paper...
This paper describes an automatic procedure using MATLAB software to plot the circle diagram for two induction motors (IMs), with wound and squirrel-cage rotors, from no-load and blocked-rotor tests. The advantage of this approach is that it avoids the need for a direct load test in predetermining the IM characteristics under reduced power. Additionally, to verify the validity of the equivalent circuit...
ALL the time, the methode of simulating the high-frequency contents of inverter-fed traction motor and the winding inter-turn voltage distribution has been the equivalent circuit model. The main simulating tool has been MATLAB. But now another method may be better than this one. Based on electromagnetic field theories, this paper researches the effect of steep-fronted voltage wave-shapes infringing...
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