Simulation and Analysis of DSIM Speed Control System Supplied by Multi-Level Converter Using Fuzzy Logic Controller

The main objective of this paper is the simulation and analysis of a dual star induction machine (DSIM) with speed regulation using fuzzy logic controller (FLC). This drive system supplied by two voltage source multi-level converters (MLC) and controlled under indirect field oriented control (IFOC) technique. Furthermore, the multi-level converter is used to reduce the harmonic currents and torque pulsations. The FFT spectrum of the currents and output voltages is presented and analyzed to show the reduction of harmonics. So, they showed that the total harmonic distortion (THD) decreases as the number of levels increases. Moreover, a substantial reduction of the magnitude of the electromagnetic torque pulsations and stator currents rating is observed with the multi-level converter compared to the conventional converter.