Direct torque control with space vector modulation of inverter fed permanent magnet synchronous motor

Abstract

In recent years, synchronous motors have become widely used in industrial applications. In all low speed ratings, synchronous motors are physically smaller and less costly to build than squirrel-cage induction motors of equivalent horsepower. Moreover, synchronous motors provide higher torque/inertia ratio and higher efficiency. Particularly, Permanent Magnet Synchronous Motors (PMSM) do not have windings on the rotor. So, there is no need for brushes and slip rings what leads to less copper losses, less maintenance and space saving. This thesis presents the Direct Torque Control Space Vector Modulation (DTC-SVM) of PMSM. The implementation