Control of complex dynamical systems based on Direct Torque Control of an asynchronous machine

Abstract

In this article, we present a modeling of Direct Torque Control to improve the whole inconvenient by a system with discrete events, which is used to control asynchronous machines. This model is designed through the description of three-phase to two-phase transformation, torque and flux estimator, stator flux comparator, stator flux position detector, switching table and machine model. The complications of the stator voltage reference calculations were developed. The result of this control has shown an optimal torque response time, it controls almost perfect undulation of the torque and flux.