Five Phase Space Vector Modulation Voltage Source Inverter Using Large Vector Only

AC machine with a phase number higher than three enables utilization in electric drives and considered for several applications today. The multi-phase gives more advantages compared to three-phase counterparts. Furthermore, devising appropriate control algorithm is also important while modeling Voltage Source Inverter (VSI). Besides, space vector is used as a method that preferred real-time modulation techniques and widely use for digital control of VSI. Since then, the study on Five Phase Space Vector Modulation (SVM) and VSI using large vector has been developed. However, this study concentrate on the outer most decagon space vector only that does not include the whole of the decagon, d-q plane. Furthermore, this study also does not include the zero vectors at the time switching and only active vector were used for the time switching for each sector. The waveforms of Line to Line Voltage, Phase to Neutral Voltage and Pole Voltage have been compared between theoretical waveform that have been calculated from Microsoft Excel and validate through simulation using MATLAB/Simulink. This study were concentrated on the Low Order Harmonic (LOH) voltage of 3rd and 7th which were shown with different modulation index and showed that the LOH percentages reduced when the modulation index increased.