Take a look back upon the past decade of direct torque control [of induction motors]

摘要: More than ten years have passed since the direct torque control strategy of an induction motor was first reported. The has featured a stator flux vector and output instead conventional current technique which had been employed in field-oriented control, given systematic solution to improve operating characteristics not only but also PWM inverter. In this paper, looking back upon fruitful past decade at present state strategy, several key techniques are reviewed. One is improvement basic performance enabled by means double-parallel inverter, made ultimately quick response possible. Another relevant robust makes system insensitive both rotor resistance. Also, latest technique, contributes enhance further, referred to.