|DIRECT TORQUE CONTROL METHODS FOR PWM INVERTER-FED INDUCTION MOTOR DRIVES -A SURVEY|
|MARIAN P. KAZMIERKOWSKI|
This paper presents a review of recently used direct torque and flux control (DTC) techniques for voltage source inverter-fed induction motors. A variety of techniques, different in concept, are described as follows: switching table (ST) based hysteresis DTC, direct self control (DSC), constant switching frequency DTC with space vector modulation (DTC-SVM). Also, nowadays trends in the DTC-SVM techniques based on neuro fuzzy logic controllers are presented. Some oscillograms that illustrate properties of the discussed techniques are included.
|Key Words:||AC motors, direct torque control (DTC), voltage source inverters.|