Direct Torque Control of PMSM using Space Vector Modulation

Abstract: The direct torque control of permanent magnet synchronous motor using space vector pulse width modulation technique and fuzzy controller is presented in this paper. It is compared with the conventional DTC. In PMSM the electromagnetic torque is directly proportional to the angle between stator and rotor flux linkages. This angle can be controlled by controlling the stator flux linkages. The stator flux linkages can be controlled by controlling the stator voltage vector, which can be controlled by controlling the switching frequency of the inverter. The DTC- SVM and DTC-Fuzzy controller is implemented in MATLAB / simulation.

Keywords: DTC, SVM, Fuzzy, PMSM