Author : K.Swathi, M.Baba Fakruddin and B.Nageshwar Rao

This paper presents a scheme of induction motor drive application with various combinations of Multilevel inverters and with SPWM controlling technique. In each combination along with motor performance characteristics analysis of the THD content of the multi level converter had given high priority. The converter topology power circuits contains PV cell and stand alone battery which explains the need of renewable energy sources utilization in drives scenario. As the number of levels increase in the output voltage, the THD content decreases and hence power quality increases. However there is a limit beyond which increasing the number of level is not economical and adoptable. Comparison of each topology with respect to THD content been tabulated. Matlab/Simulink is used to simulate the system.

Keywords: Induction motor, Multilevel inverter, Energy management, PVcell, Multilevel SPWM, THD.

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.1 (Feb- 2014)