Development of Space Vector PWM control Technique for an Eleven Phase Voltage Source InverterJournal: International Journal of Science and Research (IJSR) (Vol.2, No. 2)
Publication Date: 2013-02-05
Authors : Jeevitha Babu; Manu Prasad Manmathan;
Page : 207-212
Keywords : Space Vector Modulation; multiphase; 11-phase VSI; Pulse Width Modulation;
Multiphase Variable Speed Drives have found widespread applications in recent times, especially in the area of ship propulsion systems. Such drives almost invariably require converters with a suitable number of output phases. Pulse Width Modulation techniques have been the preference in recent times for the control of power electronics converters. Space Vector Pulse Width Modulation technique applied on multi-phase converters allows us an efficient implementation of such converters. This paper concentrates on the implementation of the Space Vector Modulation (SVM) in an 11-phase voltage source inverter (VSI) system. There are a total of 211 = 2048 space vectors for such an inverter. But out of these only 22 large vectors and 2 zero vectors are necessary for SVM implementation. The symmetrical sequence type of implementation is chosen for the SVM and its implementation method is discussed.
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