SensorLess Technique For Rotor Position Detection of An Permanent Magnet Synchronous Machine Using DirectTorque Control

Abstract

Double-excited AC machines, such as PMSMs, provide fast torque responses and great operating performance. Permanent magnet synchronous motors have an increase in electromagnetic torque that can be demonstrated analytically. Direct Torque Control (DTC) adjusts the angle between the stator and rotor flux connections to achieve rapid torque response. Electrical torque is calculated in a stationary reference frame using DTC’s calculations for electromagnetic torque. Stator flux and torque are variables. There are a variety of techniques for determining the rotor’s location and speed without the use of sensors. As an improvement on standard DTC, a sensor-less approach for detecting rotor position and performing direct torque control will be discussed in this work. MATLAB findings are used to model the sensorless direct torque control technique’s fundamental operation.