Combined Vector Control and Direct Torque Control an experimental review and evaluation

This work presents an experimental evaluation based on DSP of Combined Vector Control and Direct Torque Control strategy. This strategy permits to control torque and flux by controlling the stator current and by using a switching Table instead of PI controllers. This Control combine the characteristics of both Direct Torque Control and Vector Control to provide high dynamic for torque response. The experimental implementation in real-time of this control has been successfuly made with 1KW induction motor and using a dSPACE system equipped with Digital Signal Processor TMS320F240 DSP. In order to evaluate this strategy, this paper proposes an experimental comparaison with the vector control. Results are presented to show the advantages and the drawback of this Strategy.