MODELING AND SIMULATION OF AN INDUCTION MACHINE WITH A NOVEL CONCEPT OF A CONVERTER-FED ROTOR
Author’s Name : P Mahesh Kumar | M L Dwarakanand
Volume 04 Issue 04 Year 2017 ISSN No: 2349-2503 Page no: 18-22
This paper investigates an induction machine with a novel concept of the rotor fed by a converter. The stator is Y connected and directly connected to the grid, while the rotor windings are open-ended and fed by a back-to-back converter with a floating capacitor. Power factor and efficiency improvements of the induction motor are studied with different settings of phase-shift angle between the two converters. Moreover, the dynamic performance of the induction machine is explored in MATLAB/Simulink and verified experimentally on a 1.8-kW induction machine in the laboratory. The result shows good agreement between simulation and experiment. At a constant speed, variable load operation of the induction machine is obtained by setting the frequency of the rotor voltage.
Back-to-Back Converter, Dynamic Performance, Induction Machine Drives, Open-End Winding and Unity Power Factor
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