Space Vector Modulated Direct Torque Control of an Open-end Winding Induction Motor Drive with Three-Level Inversion

In the recent trends Direct Torque Control (DTC) and Predictive Torque Control (PTC) algorithms turned as viable alternative to Field Oriented Control (FOC) of AC motor drives. Induction motor drives are popular in industrial applications and electric vehicles (EV). This article presents, experimental verification of space vector modulated DTC (SVMDTC) and PTC of an open-ended induction motor drive (OEIMD). The scheme of SVMDTC offers less torque and flux ripples with constant switching frequency, whereas PTC operates with variable switching frequency. This article provides comparison between SVMDTC and PTC strategy of an OEIMD with three-level inversion. This article introduces a simplified SVMDTC algorithm for an OEIMD with less torque and flux ripples. The experimental studies are performed with dspace DS-1104 controller board.